Burning 1.09g of a fuel causes the water in a calorimeter to increase by 13.6 °C. If the calorimeter has a heat capacity of 3.09 kJ/°C, what is the energy density of the fuel is - 38.55 kJ/g.
given that:
c = 3.09 kJ/°C
ΔT = 13.6 °C
heat capacity equation is given by :
q = c ΔT
q = 3.09 kJ/°C × 13.6 °C
q = 42.02 kJ
according to law of conservation of energy sum of heat released by fuel and absorbed by calorimeter is zero
qf + qcal = 0
qf = - q cal = -42.02 kJ
now, The energy density of fuel = - 42.02 kJ / 1.09 g
= - 38.55 kJ/g
Thus, Burning 1.09g of a fuel causes the water in a calorimeter to increase by 13.6 °C. If the calorimeter has a heat capacity of 3.09 kJ/°C, what is the energy density of the fuel is - 38.55 kJ/g.
To learn more about heat capacity here
https://brainly.com/question/22565696
#SPJ1
help me please if you can
Solutions:
• Hot air rises because as the air is heated, it enlarges or swell up, resulting in reduced density, hence it rises .
,• The molecules in the hot air also heats up and move faster and spreads out and hits the inside of the baloon pushing it upwards since the its density is lesser than when it was cooled.
When using the scientific method, which step does a scientist usually perform right after forming a hypothesis? A) Performing an experiment B) Making a prediction C) Reporting experimental results D) Making an observation
Find the average atomic mass of a sample that has 75%
Element-133, 20% Element-132 and 5% Element-134.
Answer:
Average atomic mass: 132.85a. m. u.
Explanation:
The average atomic mass could be found by:
Average mass = ∑ (Abundance percentage × isotope mass)
⇒ Average mass = (0.75 × 133) + (0.20 × 132) + (0.05 × 134) = 132.85a. m. u.
Hope this helps! :)
which diagram below accurately identifies displacement and additive plating? be sure to read the description for each and look at the labels under each diagram
The second image that is shown below accurately identifies displacement and additive plating.
What is plating?The term plating is actually an electrochemical process. This implies that it has to do with a chemical reaction that involves electrochemistry. The term plating has to do with the situation where a metal is wholly or partially covered by another metal in a electrochemical process. Recall that electrons must be transferred as part of the process as it is an electrochemical process.
In the process of an additive plating, has to do with a situation where a metal is merely added to the surface of another metal without replacing the metal. In fact, the surface does have the two metals.
In the case of the displacement plating, the metal that was initially on the surface is replaced and then we have a whole new metal that is present on the surface as shown in the image in the question.
Learn more about plating:https://brainly.com/question/20078989
#SPJ1
The Copernican model of the solar system was a
Answer:
Heliocentric system
Explanation:
Copernicus suggested that the Solar System's center should be the Sun rather than the Earth. A heliocentric system is the name given to such a model.
Hope this helps! :)
help me PLEEEEEAAASSEE ASAP I BEG YOU IF YOU KNOW THE ANSWER Which compares the effectiveness of methane and nitrous oxide as a greenhouse gas with that of carbon dioxide. Both methane and nitrous oxide are more effective greenhouse gases than carbon dioxide.
Both methane and nitrous oxide are more effective greenhouse gases than carbon dioxide.
Neither methane nor nitrous oxide is a more effective greenhouse gas than carbon dioxide.
Neither methane nor nitrous oxide is a more effective greenhouse gas than carbon dioxide.
Only methane is a more effective greenhouse gas than carbon dioxide.
Only methane is a more effective greenhouse gas than carbon dioxide.
Only nitrous oxide is a more effective greenhouse gas than carbon dioxide.
Only nitrous oxide is a more effective greenhouse gas than carbon dioxide.
Both methane and nitrous oxide are more effective greenhouse gases than carbon dioxide.
Compared to other anthropogenic greenhouse gases carbon dioxide has the largest relative contribution to increasing the greenhouse effect. Compared to other greenhouse gases, carbon dioxide is most effective at trapping heat near the surface. Carbon dioxide is called a greenhouse gas because it is one of the gases in the atmosphere that warms the earth through a phenomenon called the greenhouse effect.
Water vapor is the most powerful greenhouse gas in the Earth's atmosphere and a unique player among greenhouse gases. The amount of water vapor in the atmosphere is usually not directly changed by human actions. It depends on the air temperature. Compared to other anthropogenic greenhouse gases, carbon dioxide has the largest relative contribution to the increase in the greenhouse effect.
Learn more about A greenhouse here:-https://brainly.com/question/12684997
#SPJ1
.
1.You are performing an experiment in the chemistry lab that calls for 3.00 moles of chromium(II) carbonate.
How many grams should you measure out in order to do the experiment?
852 grams of chromium carbonate needs to be measured out to produce 3 moles of chromium carbonate.
What is a mole and how come 852 grams is needed to produce 3 moles of chromium carbonate?Mole , a chemical quantity used to measure the amount of substance in international system.We often use mole as a quantity or a unit of measurment and we also use its formula to calculate out the measurments we need.The formula of mole is mole = given mass/ molar mass.Here is given the number of moles that is 3 mole of chromium carbonate and asked how many grams should be taken.Using the formula m = given mass/ molar mass, we can do it , as an given mass= 3 x 284= 852 grams.To know more about mole visit:
https://brainly.com/question/26416088
#SPJ9
How many grams of nitrogen are in 13.2 grams of N₂O₂?
The mass of the nitrogen in solution of N₂O₂, n = 4.55 g.
Equation :To calculate the mass of nitrogen using formula,
n = W / w
where,
n is mass of nitrogen
W is molecular weight of N₂O₂
w is weight of solution
So, given data are :
w = 13.2 g
W = 60.013 g
n = ?
Now, putting the values we get,
n = 60.013 / 13.2
n = 4.55 g
Hence, the mass of the nitrogen in solution of N₂O₂, n = 4.55 g.
Dinitrogen dioxide :The inorganic substance dinitrogen dioxide has the chemical formula N₂O₂. It is conceivable to have many structural isomers. Based on ab initio calculations, the covalent bonding pattern O=N-N=O is projected to be the most stable isomer and is the only one that has been created experimentally.
To know more about solution :
https://brainly.com/question/7932885
#SPJ9
If equal masses of the following compounds were dissolved in water to prepare 100.0
mL of solutions which of them would have the lowest concentration of sodium ions?
O Na₂SO4 (molar mass= 142.04 g/mol)
O Na3PO4 (molar mass = 163.94 g/mol)
O NACIO4 (molar mass = 122.44 g/mol)
ONaNO3 (molar mass= 84.99 g/mol)
O Na₂CO3 (molar mass= 105.99 g/mol)
Answer:
Explanation:
yt maybe
If there are 6.45 x 1020 atoms in a sample of pure silver metal, what is the mass of the sample in grams?
The mass of the sample in grams is 115.53 × [tex]10^{-3}[/tex].
What is atomic mass?The weight of an atom has been its atomic mass. Although the kilogram is the standard international measurement of mass, the unified atomic mass unit, or Dalton, is frequently used to express atomic mass. One Da is equal to one-twelfth of the mass of a free carbon-12 atom in its ground state.
The quantity of material that makes up an element's atom, its atomic mass. It is stated as a multiple of 1.992646547 1023 gram, which is equal to one-twelfth of the mass of the carbon-12 atom, which has an atomic mass of 12 units. An element's atomic unit (amu), on the this measure, is equivalent to 1.660539040 1024 grams. The Dalton (Da) is yet another term again for atomic mass unit which commemorates the English chemist John Dalton.
Silver has an atomic mass of 107.87 g/mol.
There are 6.022 × [tex]10^{23}[/tex] atoms in one mole of anything.
You have 6874 × [tex]10^{20}[/tex] atoms of Ag.
So:
6.45 x [tex]10^{20}[/tex] atoms × 1 mol/(6.022 x [tex]10^{23}[/tex]) atoms × 107.87 grams Ag/mol
= 115.53 × [tex]10^{-3}[/tex]grams
To know more about atomic mass ,visit:
https://brainly.com/question/27592591
#SPJ9
A buffer solution is made using a weak acid, HA , that has a pa of 5 . If the pH of the buffer is 8 , what is the ratio of [A−] to [HA] ?
Answer:
[A-] : [HA] = 1000 : 1
Explanation:
I'm assuming that you mean a pKa of 5 not a pa of 5
For this question, the equation:
pH = pKa + log([A-]/[HA])
plug in pH and pKa
8 = 5 + log([A-]/[HA])
move the 5 from the right to the left
3=log([A-]/[HA])
raise 10 to both sides of the equation to get rid of the log
10^3=10^(log([A-]/[HA]))
1000=[A-]/[HA]
so the ratio of [A-] to [HA] is 1000 to 1
A sample of an unknown gas is found to have a density of 1.31 g/L at a pressure of 0.621 atm and a temperature of 54 °C. Assume ideal behavior. The molar mass of the unknown gas is g/mol.
The molar mass of the unknown gas is 31.74 g/mol
The molar mass of a substance is the mass in grams of 1 mole of the substance
Here given data is sample of an unknown gas is found to have a density of 1.31 g/L at a pressure of 0.621 atm and a temperature of 54 °C and we have to fond molar mass = ?
So given data is
Density = 1.31g/L
Pressure = 0.621 atm
Temperature = 54°C means 54 + 273.15 = 326.15 K
So, the formula is PV = nRT
R = Rydberg constant = 0.0821 atm/k⁻mol
n = PV/RT
n = 0.621 atm×1.31g/L/0.0821 atm/k⁻mol×326.15 K
n = 31.74 g/mol
The molar mass of the unknown gas is 31.74 g/mol
Know more about molar mass
https://brainly.com/question/28447762
#SPJ1
Which of the following reactions would produce a white precipitate?
(1) Heating sodium chloride strongly
(2) Mixing aqueous solution of silver nitrate with sea water
(3) Adding quicklime to dilute hydrochloric acid
A(1) only
B(2) only
C(1) and (3) only
D(2) and (3) only
Answer:
Aniline reacts with bromine water to give a white precipitate.
A chemist measures the amount of oxygen gas produced during an experiment. He finds that 2.1 g of oxygen gas is produced. Calculate the number of moles of
oxygen gas produced.
Round your answer to 2 significant digits.
The number of moles of oxygen produced is 0.065 mol.
What is meant by moles?The molarity of a chemical compound is largely decided in chemistry by trying to divide the mass of a sample of that compound by the amount of substance of that compound, which corresponds to the number of moles in that specimen, evaluated in moles. A substance's molar mass is a bulk property rather than a molecular one. A substance's molar mass is its mass in grams per mole of the compound. A mole is the measurement of the quantity of atoms, molecules, or ions in a substance. A mole is 6.022 1023 molecules of any given substance.
The total mass of all the atoms in a molecule expressed in grams per mole is known as the molar mass.
The mass of the oxygen gas produced = 2.1 g
The molar mass of oxygen gas , [tex]O_{2}[/tex] = 2 × 16 g/mol
= 32 g/mol
The formula for the calculation of moles
= mass taken / molar mass
Thus,
Moles = 2.1 / 32
= 0.065 mol
To know more about molar mass , visit:
https://brainly.com/question/20552052
#SPJ9
Detective Sanders asked his colleague to take a look at the ridge characteristics he has found. What is he MOST likely observing?
A.
tire tracks
B.
glass fractures
C.
soil samples
D.
fingerprints
Which of the following equations shows a chemical change?
NH3(g) → NH3(1)
H₂O(s) → H₂O(g)
C3Hg +50₂ → 3CO₂ + 4H₂O
C₂H₂OH(1)→ C₂H5OH(g)
If you are on 4.16 Chemical Reactions and have 18 questions, then go to the following on Quizlet for further help. Thanks and good luck!
Quizlet - "4.6 Chemical Reactions UT"
h t t p s : / / q u i z l e t . c o m / _ c 7 3 1 u j ? x = 1 q q t & i = 3 8 n a a s
All the given chemical reactions are considered to be chemical change as they are accompanied by change in state and even evolution of gases.
What is chemical change?
Chemical changes are defined as changes which occur when a substance combines with another substance to form a new substance.Alternatively, when a substance breaks down or decomposes to give new substances it is also considered to be a chemical change.
There are several characteristics of chemical changes like change in color, change in state , change in odor and change in composition . During chemical change there is also formation of precipitate an insoluble mass of substance or even evolution of gases.
There are three types of chemical changes:
1) inorganic changes
2)organic changes
3) biochemical changes
During chemical changes atoms are rearranged and changes are accompanied by an energy change as new substances are formed.
Learn more about chemical change,here:
https://brainly.com/question/23693316
#SPJ2
Please help with my science hw!!
a) Fe does not fit in the Colum 7, Because Fe shows different in chemical Properties. its valance electron configuration is different from oxygen and sulfur.
b) The gaps that Mendeleev left in his table were one of its distinctive features. He not only predicted the existence of yet-undiscovered elements in these locations, but also their atomic weights and other properties.
c) The modern periodic table is the arrangement of elements in increasing order of their atomic numbers.
d) Lithium ,potassium and Sodium have electronic configuration end with S1. since they are in group 1.
What is modern periodic table explain?The current periodic law serves as the foundation for the periodic table's lengthy form. The elements are organized in the table in ascending order of their atomic numbers. The periodic chart as it exists now is known as the contemporary periodic table. 18 vertical columns and 7 horizontal rows make up the structure.
To learn more about : Periodic table.
Ref : https://brainly.com/question/15987580
#SPJ13
If instead of using the blue dye, we had used a red dye, what changes would you make in your experimental procedure to determine the rate law for the oxidation of the red dye by sodium hypochlorite?
The changes that I would make in my experimental procedure to determine the rate law for the oxidation of the red dye by sodium hypochlorite is that the wavelength at which the dye concentration is calculated would be changed as a result of the operation.
What is the experiment procedure about?Since there would be an alteration in the wavelength at which the dye concentration, You shouldn't measure at the wavelength where the blue dye absorbs since you would no longer be attempting to detect the rate of oxidation of the blue dye.
Most likely, the red dye absorbs more light at a different, lower wavelength. Decide on the best wavelength to use to measure the red dye concentration, then switch to that wavelength to evaluate the kinetics.
Learn more about experimental procedure from
https://brainly.com/question/26126956
#SPJ1
1.Electrons in the outer energy shell that may participate in chemical reactions are called the_____ electrons.
a.noble gas b.core c.inert d.valence
Answer:
d valance electrons
Explanation:
Valence electrons are outer shell electrons with an atom and can participate in the formation of chemical bonds. In single covalent bonds, typically both atoms in the bond contribute one valence electron in order to form a shared pair.
hope this helps
NH3 is a week base (Kb=1.8*10^-5) and so the salt NH4Cl acts as a weak acid. What is the pH of a solution that is 0.059M NH4Cl at 25 c
pH of a solution that is 0.059M NH₄Cl at 25°C is 9.7
pH is the quantitative measure of the acidity or basicity of aqueous or other liquid solutions
Here given data is Kb=1.8×10⁻⁵ and we have to find pH pH of a solution that is 0.059M NH₄Cl at 25°C = ?
So, NH₄Cl dissociates completely in solution into NH₄⁺ and Cl⁻ NH₄⁺ being the conjugate acid of the base NH₃ and has a Ka = Kw/ Kb = 1.0×10⁻¹⁴/1.8×10⁻⁵ = 5.55×10⁻¹⁰ and the solution behaves acidic due to NH₄⁺ as it gives rise to H₃O⁺ on dissociation Cl⁻ because it is the conjugate base of the strong acid HCl is an extremely weak base and is unable to affect the pH of the solution measurably
NH₄⁺ dissociates as follows
NH₄⁺ + H₂O ⇔ H₃O+ + NH₃
So, [H3O⁺] = [NH₃], [NH₄⁺]= c - [NH₃]
Ka = [H₃O⁺] × [NH₃]/[NH₄⁺] =[H₃O⁺]²/{c - [H₃O⁺]}
So, neglecting [H₃O⁺] against c, we get
[H₃O⁺]= (Ka × c)¹/²
[H₃O⁺]=(5.55×10⁻¹⁰×0.059)¹/²
[H₃O⁺] = 1.64×10⁻¹⁰
pH = -log (1.64×10⁻¹⁰)
pH = 10-log1.64
pH = 9.7
Know more about pH
https://brainly.com/question/8798932
#SPJ1
If 0.0687 mol CaCl, is dissolved in water to make a 0.280 M solution, what is the volume of the solution?
Answer: 4.076L
Explanation: The formular for Molarity is moles/Volume
So 0.280M = 0.0687 mol/Volume
Divide both sides by the moles
0.280M/0.0687mol = _______ liters
4.0756 = 4.076 Liters
Convert
6.2 GL/s to m³/hr
Converting 6.2 GL/s to m^3/hr we get 84.94 m^3/hr , as an one Gallon per second is equals to 13.627 cubic meters per hour.
What is unit conversion and how to convert gallon per second to meters per hour?Unit conversion is so important when it comes to solve physics and chemistry numericals.Gallon per second to be converted into meters per cube per hour is equivalent to gallon per second to volume flow rate.Converting litre per second to m^3/ s is 1 m^3/s =1000L/s. Here the conversion is used to carry out equations.Earlier we have studied units and measurment in which 100 of units have found significance in the physical and cosmological world.To know more about gallon per second visit:
https://brainly.com/question/10698817
#SPJ13
What would the empirical formula be for a compound that had 37.47% Carbon, 12.61% Hydrogen and 49.92% Oxygen be? Only write WHOLE NUMBERS!
Answer: CH40 ( the 4 is not a whole number )
Explanation: If we assume that we have a sample of 100g of the compound, then that would mean we have 37.47 grams (3.12 moles) of carbon, 12.61 grams (12.48 moles) of hydrogen, and 49.92 grams (3.12 moles) of oxygen. The molar ratio of C:H:O is 3:12:3, reducing to 1:4:1, giving the empirical formula of CH4O.
A weather balloon with a volume of 171 L is launched at 20.0°C at sea level, where the atmospheric pressure is 1.00 atm. The balloon
rises to an altitude of 2.00 x 104 m, where atmospheric pressure is 61.0 mmHg and the temperature is 210.0 K. What is the volume of
the balloon at 2.00 × 104 m?
The volume of the balloon at 2.00 × 104m: 1.52x[tex]10^3[/tex] L
Given:
[tex]P_i[/tex] = 1.0 [tex]atm[/tex] -> absolute atmospheric pressure
[tex]P_f[/tex] = 61.0 mm Hg --> atmospheric pressure
= (61.0/760) [tex]atm[/tex]
= 0.0802 [tex]atm[/tex]
[tex]V_i[/tex] = 171 L
[tex]T_i[/tex] = 20.0 [tex]^oC[/tex]
= (20.0+273) K
= 293 K
[tex]T_f[/tex] = 210.0 K
[tex]\frac{P_i \times V_i}{T_i} = \frac{P_f \times V_f}{T_f}[/tex]
(1 [tex]atm[/tex] * 171 L) / (293.0 K) = (0.0802 [tex]atm[/tex] * [tex]v_f[/tex])/(210.0 K)
[tex]V_f[/tex] = 1.52x[tex]10^3[/tex] L
What is atmospheric pressure?The air around you has weight and it weighs down everything it touches. This pressure is called atmospheric pressure or atmospheric pressure. This is the force that the air above it exerts on the surface when gravity pulls it toward the ground. Air pressure is usually measured with a barometer.
Examples of air pressure, when you press an onion, there is air in the tube and the onion comes out as bubbles. However, there is air pressure on the surface of the liquid. When we release the bulb, water moves inside the tube.
To learn more about atmospheric pressure, visit;
https://brainly.com/question/26149711
#SPJ13
Consider the following ionic
compounds and determine which
has the higher melting point.
A. BeCl₂
B.Al₂S3
Answer:
Al2S3
Explanation:
Both are ionic, so to find out which one has the higher melting point, remember that opposite forces attract, and the stronger the opposite forces are, the stronger they attract.
BeCl2 is made of Be 2+ and Cl (1)-, while Al2S3 is made of Al 3+ and S2-
Since 3 and 2 multiply to a larger number than 2 and 1, the attractive forces between a 3+ ion and a 2- ion are stronger than that of a 2+ ion and a 1- ion. The stronger the forces between atoms, the higher the melting point is.
i need help with chemistry equation
The amount, in grams, of calcium hydroxide that would be required for the complete reaction with 23.1 g sulfuric acid will be 17.44 grams.
Stoichiometric problemIn order to solve this problem, we first need to get the balanced equation of the reaction:
[tex]H_2SO_4 + Ca(OH)_2 -- > CaSO_4 + 2H_2O[/tex]
For a complete reaction, the mole ratio of the sulfuric acid to calcium hydroxide is 1:1.
Recall that: mole = mass/molar mass
Molar mass of sulfuric acid = 98 g/mol
Mole of 23.1 grams sulfuric acid = 23.1/98
= 0.2357 moles
This means the mole of calcium hydroxide required will also be 0.2357 moles.
Now, let's find the equivalent mass of the calcium hydroxide.
Mass = mole x molar mass
Molar mass of calcium hydroxide = 74 g/mol
Mass of 0.2357 calcium hydroxide = 0.2357 x 74
= 17.44 grams
Thus, the mass of calcium hydroxide that would be needed for a complete reaction is 17.44 grams.
More on stoichiometric problems can be found here: https://brainly.com/question/28297916
#SPJ1
Which of the following below is the complete ionic equation of the reaction: Calcium nitrate and sodium sulfide solutions react to form solid calcium sulfide and sodium nitrate solution
To find the net ionic equation we must first write the balanced equation for the reaction. We must bear in mind that the reagents Ca(NO3)2 and Na2S are in the aqueous state and as product we will have CaS in the solid state, since it is not soluble in water and NaNO3 in the aqueous state.
The balanced equation of the reaction will be:
[tex]Ca(NO_3)_{2(aq)}+Na_2S_{(aq)}\rightarrow CaS_{(s)}+2NaNO_{3(aq)}[/tex]Ca(NO3)2(aq) + → Ca(aq) + 2Na(s)NO3Now, c(aq)ompounds in the aqueous state can be written in their ionic form, so the reaction will transform into:Na2S +
[tex]Ca_{(aq)}^{2+}+2(NO_3)_{(aq)}^-+2Na_{(aq)}^++S_{(aq)}^{2-}\operatorname{\rightarrow}CaS_{(s)}+2Na_{(aq)}^++2NO^-_{3(aq)}[/tex]So, the answer will be option A
Choose the best answer.
Perform the indicated calculation. You may use a calculator. Remember to round your
answers according to the rules for significant figures.
0.0204 g
+ 0.002 g
Answer:
0.022
Explanation:
The first number is:
0.0204, and has 4 sig figs (bolded numbers are sig fig contributors)
The second number is:
0.002 and has 3 sig figs
The answer we get must have the same number of sig gifs as the lowest sig fig count of the given values. In this case, the answer would have 3 sig figs and not 4 because the smaller one is 3.
Do the calculations and then round.
0.0204 + 0.002 = 0.0224, and since we only want 3 sig figs, go from the right of the period and count 3 numbers, which would be 0.0224, and notice how the 4 isn't included. This means that the final answer should be 0.022
To prepare a 4.20 M HCI solution that contains 655 g HCI, the volume of the solution must be___L
4.33 L of solution is needed to prepare a 4.20 M HCL solution that contains 655 g HCL.
What is M and how come the solution be 4.33 L?M is Molarity which is defined as the number of moles dissolved in per litre of the solution.Here it is given the molarity 4.20 and also given the mass of the Hydrochloric acid 655 g , to calculate the volume of the solution .We will use the equation n = m/molar mass first to calculate the number of mole of HCL.We are calculating the number of moles of HCL because only the mass of the HCL is given and moles not.Using equation M = number of moles/ litre of solution, putting the values, we get 4.33 L .To know more about Molarity visit:
https://brainly.com/question/8732513
#SPJ13
An alloy is made of different elements bonded together. Why is an alloy not considered a compound?
Select all the correct answers.
- Atoms in an alloy share electrons, but atoms in compounds do not.
- The properties of an alloy are similar to the properties of its components.
- The elements in an alloy are not combined in fixed proportions.
- Alloys are made up of ions, which do not form compounds.
The properties of an alloy are similar to the properties of its components. The elements in an alloy are not combined in fixed proportions is an alloy not considered a compound
What distinguishes an alloy from a compound?Although the physical characteristics of the alloy are intermediate to those of its component metals, the chemical characteristics of each element are unaltered. Physical methods can be used to separate an alloy (separated by melting). A compound is a collection of several components that are connected by chemical connections.
Metal mixes or blends of a metal and another element are known as alloys. A combination of metallic phases or a solid solution of metal elements, known as an alloy, are both possible (a heterogeneous mixture of two or more solutions).
An alloy is a combined, homogenous combination of a metal with other metals or non-metals.
learn more about alloy refer
https://brainly.com/question/16935193
#SPJ9
Answer: Answer is B and C
b: the properties of an alloy are similar to the properties of its components.
c: The elements in an alloy are not combined in fixed propo
Explanation: