EXPLANATION:
Firstly, we need to define a solution
The solution is defined as a homogenous mixture of two or more substances in relative amounts that can be varied continuously.
Coke is an aqueous homogenous mixture of carbon dioxide, sugar, concentrate, etc The ingredient used in the production of coke are mixed in the right proportion and this make coke a homogenous solution
Temperature can affect the character of a coke. Carbonated soft drink tends to lose their fizz at high temperature. This is because as the temperature increases, the loss of carbon dioxide in the liquid will also increase.
Also, at high temperatures, the solubility of gases decreasese.
I need asap answers for this question. I’m stuck.
Oxidation state for FeAl2(SO4)4*22(H2O)
The oxidation state of SO4 in FeAl2(SO4)4 * 22 H2O is -2 .
What is oxidation state and how the oxidation state of S04 comes out to be so?Oxidation state of an element is the collection of all charges an element possess in a compound.Here the oxidation state of Fe would be taken as +2, oxidation state of Al would be taken 3, and H2O's oxidation state would be 0.Putting the values , like 2+3x2+4x = 0 , then x would be calculated out to be -2.Hence the oxidation state of SO4 in FeAl2(SO4)4*22H2O would be -2 as followed by all the oxidation states of the element in the compound when put the values.To know more about oxidation state visit:
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Which type of reaction has only one product?
Combination
Decomposition
Single Replacement
O Double Replacement
O Combustion
3
Clear selecti
The reaction type which gives one product is a combination reaction.
What is a combination reaction?
Combination reactions are those in which two or more chemical entities join together to form a single product.
Generally, all the other types mentioned in the question can give single products under different circumstances but a combination reaction always gives a single product as shown in the above reaction.
4Fe + 3O2 = 2Fe2O3
Hence, the answer is a combination reaction.
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-Write the net ionic equation that shows the reaction of 1.0 M ammonia, NH3, when dissolved in water.
-At room temperature the Keq of the above solution is 1.1. If the initial concentration of NH3 is 1.0 M, quantitatively define the pH of above solution (Show calculations using an I.C.E. table and use the quadratic equation)
-What is the reaction that occurs when a solution of ammonia is added to a solution containing Fe3+ ions?
-Propose a chemical compound that can be used to dissolve the precipitate formed in part 1.c. Support your answer with a proper chemical equation
In essence, there is no chemical reaction between ammonia and water. Although it is frequently said to produce NH₄OH, the overall response is:
H₂O + NH₃ = NH₄⁺ + OH⁻
You might compare the acid strength of H₂O (pka 15.7) and NH4⁺ (pka 9.24) or the base strength of NH₃ and OH⁻ to see which way the reaction would proceed. The reaction would shift to the weaker acid (H₂O) or the weak base in either case (NH₃). Despite what the bottle claims, weak doesn't make strong. I mean, there might be a small amount of NH₄⁺ and OH⁻ in the air, but not much.
The iron (III) ion forms an insoluble hydroxide and precipitates out of solution when ammonia is added to the solution.
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how will you relate the melted ice cream because of the heat of the sun
to magmatism
If the temperature of a gas remains constant the the pressure of gas will increase the
Answer:
If the temperature of a gas remains constant the the pressure of gas will increase the impacts on the walls of the container , thus increasing the volume
Pls I need the answer quick
Answer:
on image
Explanation:
top numbers are mass numbers; bottom numbers are proton numbers
Please help me please
If air conditioning system won't be able to chill your home until the fan is fixed if it has stopped functioning.
What happens if your AC fan stops working?Your air conditioning system won't be able to chill your home until the fan is fixed if it has stopped functioning. The circuit breaker should be checked first if the AC unit fan is not whirling. Check to see if the circuit breaker for the air conditioning equipment has tripped. The heat from the motor and the weather outdoors can cause a circuit breaker to trip due to overheating.
If the fan won't turn on, the fan motor might be malfunctioning. If you are having trouble getting the blades to turn, the motor bearings may be dusty or stuck, or there may be debris wrapped around the fan axle.
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If the fan motor is malfunctioning, it could seriously harm your system. Your entire system could fail if the fan motor becomes stuck, which could lead to the compressor overheating and failing.
What would cause AC fan to stop?A dead capacitor is one of the most typical reasons fans cease spinning. The fan motor and the remainder of the AC unit are powered by small, cylindrical capacitors that transmit energy signals. An air conditioner fan motor can get too hot if it runs too hard and isn't properly maintained, just like any other motor. The stress may cause the fan motors to burn out if your AC has served you well for the majority of the summer. A lifespan of 10 to 20 years is more typical, which implies that by the time the AC motor breaks, it is frequently time to think about replacing the entire system. They are built to endure intense heat up to 140°F, which is one reason they stay so long.To learn more about cause AC fan to stop refer:
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How many moles of sodium sulfate (Na2SO4) are in 83.1 g of the compound?
Answer:
0.585 moles Na₂SO₄
Explanation:
To find the amount of moles of Na₂SO₄, you need to multiply the given mass (grams) by the molar mass. You can use the molar mass to convert between grams and moles because the molar mass exists as a ratio which compares the mass of Na₂SO₄ per every 1 mole. The ratio should be arranged in a way that allows for the cancellation of units (grams should be in the denominator). The final answer should have 3 sig figs like the given value.
Atomic Mass (Na): 22.990 g/mol
Atomic Mass (S): 32.065 g/mol
Atomic Mass (O): 15.999 g/mol)
Molar Mass (Na₂SO₄): 2(22.990 g/mol) + 32.065 g/mol + 4(15.999 g/mol)
Molar Mass (Na₂SO₄): 142.041 g/mol
83.1 grams Na₂SO₄ 1 mole
-------------------------------- x -------------------------- = 0.585 moles Na₂SO₄
142.041 grams
Calculating the average atomic mass from Isotope data
The relative atomic mass of the given elements are:
Sulfur = 32.054 amuChlorine = 35.46 amuWhat is the relative atomic mass of an element?The relative atomic mass of an element can be defined as the number of times the average atomic mass of the element is heavier than one-twelfth the mass of an atom of carbon-12.
The relative atomic mass of an element is obtained by summing the product of the mass of each isotope of an element and its relative abundance.
The relative atomic mass of the elements are determined as follows:
Sulfur:
Relative atomic mass = (32.95 * 0.0075) + (31.972 * 0.950) + (33.967 * 0.042) + (36.01435 * 0.0002)
The relative atomic mass of sulfur = 32.054 amu
Chlorine:
Relative atomic mass = (34.97 * 0.755) + (36.97 * 0.245)
The relative atomic mass of chlorine = 35.46
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When the equation, ___O2 + ___C 6H 14 →→ ___CO2 + ___H2O is balanced, the coefficient of O2 is:
Answer:
Explanations:
For a chemical reaction to be balanced, the total number of moles of elements at the reactant must be equal to the number of moles at the product.
Given the chemical reaction;
[tex]aO_2+bC_6H_{14}\rightarrow cCO_2+dH_2O[/tex]Equating the number of moles of elements on both sides:
For the oxygen element:
2a = 2c + d ................... 1
For the carbon element;
6b=c
For the Hydrogen element:
14b = 2d
7b = d .............................. 3
Assume a = 2;
Equation 1 becomes:
2(2) = 2c + d
4 = 2c + d ................,....4
From equation 2
b = c/6 .............................. 5
From equation 3:
b = d/7 ...................... 6
Equating 5 and 6
c/6 = d/7
7c = 6d
c = 6d/7 ........................... 7
Substitute equation 7 into 4 to have:
4 = 2c + d
4 = 2(6d/7) + d
4 = 12d/7 + d
4 = (12d+7d)/7
28 = 19d
d = 28/19
To get the value of b:
b = d/7
b = 28/19 * 1/7
b = 28/133
you reach into the oven to take out the cookies but forgot to wear oven mittens. explain the transformation of thermal energy
When you reach into the oven to take out the cookies, the thermal energy from your hand transfers to the cookies. The cookies become hot while your hand becomes cooler.
What is thermal energy?
Thermal energy is the energy contained within a system that controls its temperature. The flow of thermal energy is defined as heat. Thermodynamics is a branch of physics that deals with how heat is transferred between different systems and how work is done in the process (see the first law of thermodynamics).
We are usually interested in the role of thermal energy in ensuring energy conservation in the context of mechanics problems. Almost every transfer of energy in real-world physical systems occurs with less than 100% efficiency and results in some thermal energy. Typically, this energy takes the form of low-level thermal energy.
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In a monomolecular reaction A->B , at t =250C, the initial concentration decrease at 25% in t =52 min. Calculate:
a) the constant rate;
b) the time after the initial concentration decrease with 75%;
c) the initial reaction rate, if the initial concentration of the reactant is 2.5 mol/L·s
1) The rate constant is 9.22 * 10^-5 s-1
2) The time taken is 15033 s
3) The initial concertation is 9.22 * 10^-5 M
What is the rate of reaction?We can define the rate of reaction as the rate at which reactants are converted into products or the rate of which reactants disappear and the products appear in a given reaction.
We are told that in this reaction as we can see, the initial concentration decrease at 25% in t =52 min.
Initial concentration [A]o = [A]o
Final concentration = [A]o - 0.25 [A]o = 0.75 [A]o
Time taken = 52 min or 3120 s
We have that;
ln[A] = -kt + ln[A]0
k = -(ln[A] - ln[A]0)/t
k = - (ln0.75 [A]o/A]0)/3120
k = 9.22 * 10^-5 s-1
b)
Given that
[A] = [A]o - 0.75 [A]o = 0.25 [A]o
ln[A] = -kt + ln[A]0
t = -(ln[A] - ln[A]0)/k
t = - (ln0.25 [A]o/A]0)/9.22 * 10^-5
t = 15033 s
c) When the rate is 2.5 mol/L·s
k = - (ln0.25 (2.5)/ln(2.5))/15033
k = 9.22 * 10^-5 M
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What is the mass (in grams) of 19.00 L of propane vapor (C₃H₈) at STP?
Considering the definition of STP conditions and molar mass, there are 37.3208 grams of 19.00 L of propane vapor (C₃H₈) at STP.
Definition of STP conditionsThe STP conditions refer to the standard temperature and pressure. Pressure values at 1 atmosphere and temperature at 0 ° C are used and are reference values for gases. And in these conditions 1 mole of any gas occupies an approximate volume of 22.4 liters.
Definition of molar massThe molar mass of substance is a property defined as its mass per unit quantity of substance, in other words, molar mass is the amount of mass that a substance contains in one mole.
Mass of propaneIn this case, you have 19.00 L of propane vapor (C₃H₈) at STP.
You can apply the following rule of three: if by definition of STP conditions a volume of 22.4 L is occupied by 1 mole of propane, a volume of 19 L is occupied by how many moles of propane?
moles of propane= (19 L× 1 mole)÷ 22.4 L
moles of propane= 0.8482 moles
Considering that the molar mass of propane is 44 g/mole, you can apply the following rule of three: If 1 mole of propane contains 44 grams, 0.8482 moles contains how much mass of propane?
mass of propane= (0.8482 moles× 44 grams)÷ 1 mole
mass of propane= 37.3208 grams
Finally there are 37.3208 grams of propane in 19 L.
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Explain the rationale for the potentiometric method.
The rationale of the potentiometric method is that it could be used to obtain the concentration of a particular analyte.
What is the potentiometric method?There are so many ways by which the concentration of a substance could be determined. We know that the concertation has to do with the amount of substance in the solution.
In the potentiometric titration, has to do with the sort of titration in which the end point or the equivalence point could be electronically determined without the use of an indicator. It could be used to obtain the concentration of an acid.
The potentiometric method depends on the fact that one specie is oxidized and the other is reduced and this creates a kind of a redox system. The acid may be added to the base and the changes in the potential of the system is measured. The potential is the plotted against the concentration.
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Need help with chemistry Atomic Masses: C-12.0 NA-23.0, O-16.0, P-31.0, Sn-119
INFORMATION:
We know that:
- 34.37 g of tin(IV) phosphate is added to 34.05 g of sodium carbonate
- 24.24 g of tin(IV) carbonate are made
And we must find the %yield
STEP BY STEP EXPLANATION:
Balanced equation:
Sn3(PO4)4 + 6Na2CO3 → 3Sn(CO3)2 + 4Na3PO4
1. We must find the amount of tin carbonate produced by tin phosphate
[tex]34.37gSn_3(PO_4)_4\times\frac{1molSn_3(PO_4)_4}{480.03gSn_3(PO_4)_4}\times\frac{3molSn(CO_3)_2}{1molSn_3(PO_4)_4}\times\frac{238.73gSn(CO_3)_2}{1molSn(CO_3)_2}=51.2790gSn(CO_3)_2[/tex]2. We must find the amount of tin carbonate produced by sodium carbonate
[tex]34.05gNa_2CO_3\times\frac{1molNa_2CO_3}{105.9888gNa_2CO_3}\times\frac{3molSn(CO_3)_2}{6molNa_2CO_3}\times\frac{238.73gSn(CO_3)_2}{1molSn(CO_3)_2}=38.3472gSn(CO_3)_2[/tex]3. We must find the theoretical amount of tin carbonate produced
Since sodium carbonate is the limiting reactant, then the theoretical amount of tin carbonate produced would be
[tex]38.3472gSn(CO_3)_2[/tex]4. Finally, the %yield would be
[tex]\text{ \%yield}=\frac{24.24gSn(CO_3)_2}{38.3472gSn(CO_3)_2}\times100=63.2119\text{ \%}[/tex]ANSWER:
1.
[tex]34.37gSn_3(PO_4)_4\frac{1molSn_{3}(PO_{4})_{4}}{480.03gSn_{3}(PO_{4})_{4}}\frac{3molSn(CO_{3})_{2}}{1molSn_{3}(PO_{4})_{4}}\frac{238.73gSn(CO_{3})_{2}}{1molSn(CO_{3})_{2}}=51.2790gSn(CO_3)_2[/tex]2.
[tex]34.05gNa_2CO_3\frac{1molNa_{2}CO_{3}}{105.988,8gNa_{2}CO_{3}}\frac{3molSn(CO_{3})_{2}}{6molNa_{2}CO_{3}}\frac{238.73gSn(CO_{3})_{2}}{1molSn(CO_{3})_{2}}=38.3472gSn(CO_3)_2[/tex]3.
[tex]38.3472gSn(CO_3)_2[/tex]4.
[tex]\operatorname{\%}\text{y}\imaginaryI\text{eld}=\frac{24.24gSn(CO_{3})_{2}}{38.347,2gSn(CO_{3})_{2}}\times100=63.2119\operatorname{\%}[/tex]Calculate the mass of NaCl in 450g of NaCl solution containing NaCl w/w%
Answer:
MM of Nacl is 58.5
1000=450
58.5=26.325g
ist the following aqueous solutions in order of increasing melting point. (The lastthree are all assumed to dissociate completely into ions in water.)(a) 0.1 m sugar(b) 0.1 m NaCl(c) 0.08 m CaCl2(d) 0.04 m Na2SO4
Answer
Exlanation
Melting point is an intensive property — Intensive properties are properties which do not depend on the amount of matter that is present.
Therefore, the given solutions are NOT in order of increasing melting point.
The order of inereasing melting point ofthe slolutions is:
(a) 0.1 m sugar (sugar has a metlting point of 186 °C
(c) 0.08 m CaCl2
(b) 0.1 m NaCl
(d) 0.04 m Na2SO4
2,2-dimethylbutane condensed structural formula
ANSWER
[tex]\text{ The condensed structural formula is CH}_3C(CH_3)_2CH_2CH_3[/tex]EXPLANATION
5.238 x 10^24 molecules of aluminum bromide to grams
Answer
2319.698 g
Procedure
Use the Avogadro's number and then the molecular weight to convert into grams. The formula for aluminum bromide is AlBr₃.
[tex]5.238\times10^{24}\text{ molecules AlBr}_3\frac{1\text{ mole}}{6.022\times10^{23}}\frac{266.69\text{ g}}{1\text{ mole}}=2319.698\text{ grams}[/tex]Hi could you please I just want to be sure on how to do these diagrams
Explanation:
Formaldeyde
Lewis Structure:
Structural diagram:
3D diagram.
How do you identify a redox reaction?
Answer:
I think you have to calculate the oxidation number of each atom in the reaction.
Explanation:
Hope that helped! ^u^
Identify each reactant and product in this reaction as a Brønsted acid or base.H,Y +H,Z =H,Y+HZ-acidbaseacidAnswer Bankbase
According to the definition of acids, for Bronsted-Lowry, an acid is any species that can donate a proton, which is H+, to another molecule, and a base is any species that is capable of accepting a proton. Therefore, according to this definition, we have the following reaction:
H2Y- + H2Z- <---> H3Y + HZ^2-
In this reaction, we can see that H2Z donated a H+ to H2Y, therefore H2Z is the acid on the reactants side, and H2Y will be the base.
On the products side, since we have a reversible reaction, H3Y will donate a H to HZ^-2, therefore H3Y will be the acid, and HZ^-2 will be the base
If 6.95 mol of ethane (C2H6) undergo combustion according to the unbalanced equation C2H6 + O2 ——- CO2 + H2OHow many moles of O2 is required? Answer in units of mol.
Answer
24.325 mol
Explanation
The unbalanced equation is:
C₂H₆ + O₂ → CO₂ + H₂O
The balanced equation will be:
2C₂H₆ + 7O₂ → 4CO₂ + 6H₂O
Given mole of ethane = 6.95 mol
From the balanced equation:
2 mol of C₂H₆ is required by 7 mol of O₂
Therefore, 6.95 mol of C₂H₆wills requir:
[tex]\frac{6.95\text{ mol }C_2H_6\times7\text{ mol }O_{2}}{2\text{ mol }C_2H_6}=24.325\text{ mol of }O_{2}[/tex]Hence, 24.325 mol of O2 is required.
Determine the mass of water formed when 12.5 L NH 3 (at 298 K and 1.50 atm) is reacted with 18.9 L of O 2 (at 323 K and 1.1 atm).
4 NH 3( g) + 5 O 2( g) → 4 NO( g) + 6 H 2O( g)
16.93g of water formed when 12.5 LNH3 (at 298 K and 1.50 atm) is reacted with 18.9 L of O2 (at 323 K and 1.1 atm).
What is water in chemistry?The primary component of Earth's hydrosphere and the fluids in all known living things is water (H2O), an inorganic chemical that is transparent, tasteless, odorless, and almost colorless (in which it acts as a solvent).
Despite not providing food, energy, or organic micronutrients, water is necessary for all known forms of life. Each of its molecules has one oxygen and two hydrogen atoms, which are connected by covalent bonds, as indicated by the chemical formula H2O. At a 104.45° angle, the hydrogen atoms are joined to the oxygen atom.
We will use the idea gas equation to calculate the moles of NH3 and O2
that is Pv= n RT
where; P= pressure,
V= volume,
n = number of moles,
R=gas constant = 0.0821 l .atm/ mol.K
can also be written as
n = PV /RT
The moles of NH3
n= (1.50 atm x 12.5 L) /( 0.0821 L. atm /mol.k x 298 K) = 0.766 moles
The moles of O2
=(1.1 atm x 18.9 L) / ( 0.0821 L. atm/ mol.k x 323 K) = 0.784 moles
Now we will write the reaction between NH3 and O2
4 NH3 + 5 O2 → 4 No +6H2O
from equation above 0.766 moles of NH3 reacted to produce
0.766 x 6/4 =1.149 moles of H2O
0.784 moles of O2 reacted to produce
0.784 x 6/5 = 0.9408 moles of H20
As we can see O2 is totally consumed, O2 is the limiting reagent and therefore the moles of H2O produced = 0.9408 moles
Mass of H2O = moles x molar mass
Molar mass of H2O = (1 x2)+16= 18 g/mol
mass = 18 g/mol x 0.9408 moles
= 16.93 grams
Thusm 16.93g of water formed when 12.5 L NH 3 (at 298 K and 1.50 atm) is reacted with 18.9 L of O 2 (at 323 K and 1.1 atm).
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A student placed 20.0 g of glucose ( C6H12O6 ) in a volumetric flask, added enough water to dissolve the glucose by swirling, then carefully added additional water until the 100. mL mark on the neck of the flask was reached. The flask was then shaken until the solution was uniform. A 45.0 mL sample of this glucose solution was diluted to 0.500 L . How many grams of glucose are in 100. mL of the final solution?Express your answer to three significant figures and include the appropriate units.
Answer:
1.80 g (grams) of glucose.
Explanation:
First, we dissolve 20.0 g of glucose in a volume of water of 100 mL (0.1 L), so let's calculate the concentration of glucose in g/L, like this:
[tex]Concentration=\frac{20.0\text{ g}}{0.1\text{ L}}=200\text{ g/L.}[/tex]Now, we take 45 mL (0.045 L) of this solution that contains a concentration of glucose of 200 g/L to create a new solution with 0.500 L.
From this new solution, we have to find the mass of glucose if we took 100 mL (0.1 L) of this solution, so we have to use the following equation:
[tex]C_1V_1=C_2V_2.[/tex]Where C is concentration, V is volume, and subindex 1 and 2 indicate the initial solution, which in this case, is C1 = 200 g/L, V1 = 0.045 L, and the final solution with unknown concentration (C2) and a volume of V2 = 0.500 L.
Let's solve for C2 and replace the given data to obtain the new concentration (final concentration) of the new solution of 0.500 L, like this:
[tex]\begin{gathered} C_2=\frac{C_1V_1}{V_2}, \\ C_2=\frac{200\text{ }\frac{g}{L}\cdot0.045\text{ L}}{0.500\text{ L}}, \\ C_2=18.0\text{ g/L.} \end{gathered}[/tex]The final concentration of glucose in 0.500 L would be 18.0 g/L.
The next and final step is to calculate the total mass using the volume that we took from the 0.500 L solution, which is 100.0 mL (0.1 L). To do this, we have to do a dimensional analysis to obtain the answer in units of grams, so the calculation will look like this:
[tex]\begin{gathered} mass\text{ of glucose=}18.0\frac{g}{L}\cdot0.1L, \\ mass\text{ of glucose=1.80 g.} \end{gathered}[/tex]The answer would be that we have 1.80 g (grams) of glucose in 100 mL from the 0.500 L solution.
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?
Volume of the balloon at 2.00 × 10⁴ m is 1.52x10³ L
Volume is the three dimensional qualities that is used to measure capacity of solid shape and atmospheric pressure is the air around you has weight and it weighs down everything it touches is called atmospheric pressure
Here given data is
Pi = 1.0 atmosphere = absolute atmospheric pressure
P f = 61.0 mm Hg = atmospheric pressure
= 61.0/760 atmosphere
= 0.0802 atmosphere
Vi = 171 L
T i = 20.0°C = 20+273 = 293 K
T f = 210 K
We have to find volume of the balloon at 2.00 ×10⁴ m =?
Then the formula is
Pi × Vi/T i = P f × V f/T f
1 atm×171 L/293 K = 0.0802× V f/210K
V f = 1.52x10³ L
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Convert 1.54 x 10^25 molecules of water into moles.
The moles of water = 0.25×[tex]10^{2}[/tex]
Given Molecules= 1.54×[tex]10^{25}[/tex] molecules
Avogadro number = 6.02×[tex]10^{23}[/tex] molecules
Number of Moles= Number of Molecules ÷ Avogadro Number
Number of moles = 1.54×[tex]10^{25}[/tex]÷6.02×[tex]10^{23}[/tex]
= 0.25×[tex]10^{2}[/tex] moles
Therefore number of moles are 0.25×[tex]10^{2}[/tex] moles
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What is the z value for calcium atom with 35neutrons?
The atomic number of calcium i.e. Z value is 20 with 35 neutrons and 20 electrons.
What is atomic number?Atomic number is defined as a chemical element's nuclear charge number (symbol Z) is the charge number of an atomic nucleus.
It can also be defined as the number of protons or positive charges in the nucleus of an atom of a specific element, and thus the number of electrons generally surrounding the nucleus.
The number of protons is equal to number of number of electrons.
Thus. the atomic number of calcium i.e. Z value is 20 with 35 neutrons and 20 electrons.
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9. List three Alkali metals and give two physical and two chemical similarities shown in this Group.
NAME
SYMBOL
PHYSICAL SIMILARITY
CHEMICAL SIMILARITY
1)
2)
1)
1)
Here are 3 alkali metals with physical and chemical similarity.
What is alkali metals?
alkali metals are come from the fact that when these metals or their oxides dissolved in water.a basic solution results.
Three alkali metals -
1- hydrogen(H)
2-lithium(Li)
3-potassium(K)
Physical and chemical similarity of hydrogen -
-it is colourless and tasteless in nature.
-it is a combustible gas but not a supporter of combustion.
Physical and chemical similarity of lithium -
-it have a melting point of 180.54
-it is the lightest of all metals,with a density approximately half that of water.
Physical and chemical similarity of pottasium -
- this metal is soft and white with a silver lustre.
-it imparts a lavender colour to a flame, and it's vapour is green.
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