Answers
Answer:
single covalent bond
Explanation:
The bond formed between two atoms each sharing one electron is called single covalent bond
The figure 1 is the structure of diamond. The type of bond in diamond is covalent sp³ bond. DIamond exists in hexagonal arrangement of carbon atoms.
What is allotrope?Allotropes are substances formed from a single elements with different number in various size and shape. Carbon exhibit catenation property which means it can forms chains with other carbon in any large number.
The allotropes of carbon are diamond, graphene and fullerene. Diamond is hexagonal arrangement of carbons atom bonded covalently in sp³ hybridisation.
In graphene as shown in the second figure, bonded carbons atoms are arranged as layers where carbon is in sp²hybridisation. In the case of fullerenes, there are both hexagonal and pentagonal rings adjacent to each and are formed by 60-70 carbons.
In all these allotropes, the bond type between two carbons atoms is covalent. Covalent bond is formed by sharing of electrons between the two atoms.
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Related Questions
Explain how each property affects the energy in a wave:
Amplitude:
Wave speed:
Wavelength:
Frequency:
Answers
Answer:
frequency
Explanation:
because a wave is equally a frequency
What is the molarity of a solution of h3po4 if 10.2 ml is neutralized by 53.5 ml of 0.20m koh what is the molarity of a solution of h3po4 if 10.2 ml is neutralized by 53.5 ml of 0.20m koh 0.67m h3po4 0.15m h3po4 0.35m h3po4 0.37m h3po4
Answers
The molarity of the solution of H₃PO₄ needed to neutralize the KOH solution is 0.35 M
Balanced equationH₃PO₄ + 3KOH —> K₃PO₄ + 3H₂O
From the balanced equation above,
The mole ratio of the acid, H₃PO₄ (nA) = 1The mole ratio of the base, KOH (nB) = 3How to determine the molarity of H₃PO₄ Volume of acid, H₃PO₄ (Va) = 10.2 mLMolarity of base, Ca(OH)₂ (Mb) = 0.2 MVolume of base, Ca(OH)₂ (Vb) = 53.5 mL Molarity of acid, H₃PO₄ (Ma) =?MaVa / MbVb = nA / nB
(Ma × 10.2) / (0.2 × 53.5) = 1 / 3
(Ma × 10.2) / 10.7 = 1 / 3
Cross multiply
Ma × 10.2 × 3 = 10.7
Ma × 30.6 = 10.7
Divide both side by 30.6
Ma = 10.7 / 30.6
Ma = 0.35 M
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Body systems often interact with each other. The image below shows parts of body systems that interact to fulfill a function for the body.
Which statement describes how the body systems in the image work together to perform a common function
Answers
According to the research, the body systems work together to perform a common function through the coordination of endocrine substances and nerve impulses.
What are the body systems?They are the different sets of organs that make up the body, collaborating in each case with the fulfillment of some specific type of functions.
This simultaneous and juxtaposed set of systems involves various organs, ducts, tissues and various glands, all coordinated by endocrine substances and nerve impulses, so as to operate more or less autonomously as the case may be.
Therefore, we can conclude that according to the research, the body systems work together to perform a common function through the coordination of endocrine substances and nerve impulses.
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Which type of wave pushes the medium in the direction of the wave? *
A. transverse wave
B. compression wave
C. neither A nor B
D. both A and B
Answers
Answer:
Neither because it’s a longitudinal wave that is supposed to be the answer
Explanation:
Describe polar and nonpolar molecules
Answers
Answer:
Polar molecules occur when there is an electronegativity difference between the bonded atoms. Nonpolar molecules occur when electrons are shared equal between atoms of a diatomic molecule or when polar bonds in a larger molecule cancel each other out.
Explanation:
hope it's helps
Name the following compound:
CH3 - CH₂ - CH₂ - CH₂ - OH
Answers
[tex]\qquad\qquad\huge\underline{{\sf Answer}}[/tex]
Here we go ~
There are 4 carbon atoms in the chain, so it's prefix should be " But " and there are only sigma bonds, therefore the primary suffix will be " ane ", and the functional group attached to the end is " OH " denoting alcohol group, so the secondary suffix will be " ol "
Hence, the name of the compound will be ~
[tex]\qquad \sf \dashrightarrow \:Butan - 1 - ol[/tex]
or simply
[tex]\qquad \sf \dashrightarrow \: Butan ol[/tex]
formation of water: 2H2 + 1 O2 --> 2H2O
How many moles of H2O can be produced from 35 grams of O2?
Answers
Answer:
2.2 moles H2O
Explanation:
[tex]35g O_2 \mbox{ \cdot }\frac{1mol}{32g/mol} \mbox{ \cdot }\frac{2mol H_2O}{1mol O_2}= 2.1875[/tex], which rounds to about 2.2
What pressure will 13 moles of propane, C3H8, be in a 300 L tank when held at a constant temperature of 288 K?
Answers
The pressure of the given moles of propane with the given volume and temperature is 1.024atm.
What is Ideal Gas Law?The Ideal gas law or general gas equation emphasizes on the state or behavior of a hypothetical ideal gas. It states that "the pressure multiplied by volume is equal to moles multiply by the universal gas constant multiply by temperature.
It is expressed as;
PV = nRT
Where P is pressure, V is volume, n is the amount of substance, T is temperature and R is the ideal gas constant ( 0.08206 Latm/molK )
Given the data in the question;
Amount of gas n = 13molTemperature T = 288KVolume of the gas V = 300LPressure P = ?PV = nRT
P = nRT / V
P = ( 13mol × 0.08206Latm/molK × 288K ) / 300L
P = 307.23264Latm / 300L
P = 1.024atm
Therefore, the pressure of the given moles of propane with the given volume and temperature is 1.024atm.
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how do you complete chemical equations?
Ca+O2 →
Answers
[tex]2\text{Ca} + \text{O}_2 \rightarrow 2\text{CaO}[/tex]
please help
Tare the balance. Place the wooden block on
the pan, and record the block's mass below. g
Answers
Answer:
the first question's answer is 10.7g and the follow up question is 47.7g.
Explanation:
it makes you drag the object onto the scale and then displays it on the green rectangle.
Which organisms are producers?
Choose all correct answers.
tree
grass
monkey
mold
Answers
Answer: Tree and Grass are the two correct answers here
Explanation: Producers are photosynthesizing organisms. They are any kind of green plant that make their food by taking sunlight and using the energy to make sugar.
Answer:
Tree, grass
Explanation:
Producers make their own food. Trees and grass can make their own food using sunlight (photosynthesis). Monkey is consumer (eats other things like bananas- made by plants - for survival). Mold (like fungus) eat dead stuff and thus are decomposers (not producers).
What kinds of solute particles are present in water solutions of electrolytes and no electrolytes?
Answers
Ion particles are present in water solutions of electrolytes while neutral molecules are present in case of non electrolytes.
What are electrolytes?Electrolytes are compounds that dissociate into ions when dissolved in a solution, resulting in the solution becoming conductive to electricity. These substances are usually made up of ionic compounds or acids that dissolve in water, producing positively and negatively charged ions. These ions can move freely within the solution and transport electric charge, thereby transforming the solution into a conductor of electricity.
What type of solute particles exist in water solutions of electrolytes?When we talk about water solutions of electrolytes, it's important to note that the solute particles are present in the form of ions. These ions are essentially atoms or molecules that have a net electric charge as a result of gaining or losing electrons. The presence of these charged particles allows for conductivity within the solution, making them capable of carrying an electric charge. Some common examples of electrolytes include table salt (also known as sodium chloride), acids, and bases.
What type of solute particles exists in water solutions of non electrolytes?When it comes to solutions in water that contain non-electrolytes, the solute particles are made up of neutral molecules or compounds that lack an overall electric charge and therefore, cannot facilitate electrical conductivity within the solution. Sugar, alcohol, and urea are a few examples of non-electrolytes.
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Describe the type of force which exists between particles in an Ideal gas. Explain why this type of force exists between the particles.
Answers
The Intermolecular force is a type of force which exists between particles in an Ideal gas.
What type of force which exists between particles in an Ideal gas?Intermolecular forces are considered weaker attractions that hold molecules in gas close together. This force of attraction is present between molecules or particles.
So we can conclude that the Intermolecular force is a type of force which exists between particles in an Ideal gas.
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3. Convert these volumes to liters:
a. 320 mL
b. 948 mL
c. 1834 mL
d. 3267 mL
4. Convert these volumes to milliliters:
a. 0.75 L
b. 0.28 L
c. 1.32 L
d. 2.4 L
Answers
b) 948 mL x 1 L/1000 mL = 0.948 L
c) 1834 mL x 1 L/1000 mL = 1.834 L
d) 3267 mL x 1 L/1000 mL = 3.267 L
4. a) 0.75 L x 1000 mL/1 L = 750 mL
b) 0.28 L x 1000 mL/1 L = 280 mL
c) 1.32 L x 1000 mL/1 L = 1320 mL
d) 2.4 L x 1000 mL/1 L = 2400 mL
What is the number of electrons shared in the multiple carbon carbon.
Answers
Answer:
a single bond will share 2 electrons
double will share 4
so triple will share 6
Examine the nuclear reaction: Superscript 1 subscript 1 H plus superscript 1 subscript 0 n right arrow superscript 2 subscript 1 H. Why is this classified as a nuclear reaction rather than a chemical reaction? It is not balanced. A new compound is formed. A change has occurred in a nucleus. A new element has been formed.
Answers
The reaction that is described in the question is a nuclear reaction because a change has occurred in a nucleus.
What is a nuclear reaction?The term nuclear reaction has to do with a reaction in which there is a transformation of the nucleus of an atom.
As such, the reaction that is described in the question is a nuclear reaction because a change has occurred in a nucleus.
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Answer:
C
Explanation:
Edge 2022
what is 750 grams of phosphorus
Answers
Answer:
750 g of phosphorus is 750 g of phosphorus
If 100.0g of nitrogen is reacted with 100.0g of hydrogen, what is the excess reactant? What is the limiting reactant? Show your work.
Answers
A bat flew directly toward its cave at a constant velocity for 0.4seconds. It flew 80 centimeters in that time. What was its velocity?
Answers
Answer:
Frequency of the ultrasonic sound, f=1000kHz=10
6
Hz
Speed of sound in air, V
a
=340m/s
The wavelength (λ
r
) of the reflected sound is given by the relation:
λ
r
=V/f
=340/10
6
=3.4×10
−4
m.
(b) Frequency of the ultrasonic sound, f=1000kHz=10
6
Hz
Speed of sound in water, V
w
=1486 m/s
The wavelength of the transmitted sound is given as:
λ
r
=1486/10
6
=1.49×10
−3
m.
ILL GIVE A BRAINLY PLS HELP
1.) How many O atoms are present in 5.00 moles of H2O?
a.)
3.01x1024 atoms
b.)
3.01 atoms
c.)
5 atoms
d.)
6.02x1024 atoms
2.) A sample of CO2 contains 1.8x1024 molecules. How many moles of carbon dioxide are in this sample?
a.)
6.02x1023 mol
b.)
3 mol
c.)
1.8 mol
d.)
3x1024 mol
Answers
Atoms are the unit of the molecule of the compound. The 3.01 x 10²⁴ atoms of oxygen are present in 5 moles of water and 3 moles of carbon dioxide in the sample.
What are atoms?Atoms are the smallest fundamental unit of the compounds that can be given by Avogadro's number.
For calculating the oxygen atoms in 5 mole water:
If 1 mole = 6.02 × 10²³
Then, 5 moles = 5 × 6.02 × 10²³
Hence, 3.01 x 10²⁴ atoms of oxygen are present in 5 moles of water.
Moles of carbon dioxide in the sample is calculated as:
If 1 mole of carbon dioxide = 6.02 × 10²³ molecules
Then moles in 1.8 x 10²⁴ molecules will be,
(1.8 x 10²⁴ molecules) ÷ (6.02 × 10²³ molecules) = 3 moles
Hence, 3 moles of carbon dioxide is present in the sample.
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ii. If the pressure after landing was 1.0 atm, what was the volume of the passenger's collapsed water bottle? (Assume the bottle collapsed easily and temperature didn't change.) (6 points)
Answers
Using the ideal gas equation and Gay Lussac's law, the volume of the passenger's collapsed bottle after landing is 0.0075 L.
What is ideal gas equation?The ideal gas equation shows the relationship between temperature, pressure, volume and number of moles.
The volume of the passenger's collapsed bottle after landing is 0.0075 L.
Given that;
PV = nRT
P = gas pressureV = volume of gasn = number of moles of gasR = molar gas constantT = temperaturen = PV/RT
Hence:
P = 0.75 atm;
V = 0.5 L;
T = 295 K;
R = 0.082 atmL/K.mol
n = 0.75 * 0.5 / 0.082 * 295
n = 0.015 moles
If the pressure after landing was 1.0 atm;
V1n1 = V2n2
V2= V1n1/n2
V2 = 0.5 L * 0.015 moles/ 1 mole
V2 = 0.0075 L
The volume of the passenger's collapsed bottle after landing is 0.0075 L.
Missing parts;
A passenger on an airplane finished a 0.5 L bottle of water during the flight
and replaced the lid. The cabin pressure and temperature were maintained at
0.75 atm and 295 K during the flight. After landing, he noticed his empty water
bottle had collapsed. (12 points)
i. How many moles of gas were in the water bottle?
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How does the number of molecules in 1 mol of oxygen compare with the number of molecules in 1 mol of nitrogen?
O 1 mol of oxygen has fewer molecules.
O 1 mol of oxygen has more molecules.
O Each sample has the same number of molecules.
O The molecules cannot be compared without knowing the mass.
Answers
Answer:
The molecules cannot be compared without knowing the mass.
30. Which of the following substances would depress the freezing point of pure water the most?
a.
NaCl
c.
C6H12O6
b. MgCl₂
d.
K3PO4
Answers
Answer:
D. K3PO4
Explanation:
K3PO4 would dissolve into 3 potassium ions and one phosphate ions thus total of 4 items added in water. Freezing point is depressed by high amounts of stuff. NaCl would add 2 items (one Na and one Cl). Glucose would not break apart, thus 1 item. MgCl2 would break into One Mg and two Cl ions (thus 3 things.)..
Overall, K3PO4 dissolves into most components, thus would depress the freezin point most.
Solid copper (III) wire reacts with sulfur in a synthesis reaction. If 1.35*10^25 atoms of
copper react with 15.0 grams of sulfur, how many grams of product will be produced and
how much excess reactant will be left over?
Answers
Moles of copper
No of molecules/Avagadro no1.35×10²⁵/6.022×10²³0.022×10^²2.2molesMass of copper
2.2(63.5)13.97gNow
According to law of conservation of mass
Mass of products=Mass of reactants
13.97+1528.97gA scientist finds a fossil that she thinks might make a good index fossil.
Which characteristic does this fossil most likely have?
Answers
Answer: A fossil will usually have remains or impressions of an animal or plant.
Answer:
the answer is b
Explanation:
trust me
which ph value is consistent with the indicator results
Answers
The color of the indicator will correspond to the pH values of either acidic or basic substances.
What are pH values and Indications?pH values are values which are obtained from taking the negative logarithm to base ten of the hydrogen ions concentration of a substance.
pH values of acidic substances are less than 7 while the pH of basic or alkaline substances are greater than 7.
An indicator is an organic dye which changes colour according to the pH of a substance.
Examples of indicators are methyl orange and phenolphthalein.
Therefore, the color of the indicator will correspond to pglh values of either acidic or basic substances.
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Balance the following reactions:'
Mg(OH)2 + HCl ➡️ H2O + MgCl2
Ca(ClO3)2 ➡️ CaCl2 + O2
Ca(NO3)2 + ➡️ KBr CaBr2 + KNO3
Al + HCl ➡️ AlCl3 + H2
C2H6 + O2 ➡️ CO2 + H2O
Answers
[tex]2 HCl + Mg(OH)_2[/tex] → [tex]2 H_2O + MgCl_2[/tex]
[tex]3 Ca(ClO)_2[/tex] → [tex]2 CaCl_2[/tex] + [tex]Ca(ClO_3)_2[/tex]
[tex]2 KBr + Ca(NO_3)_2[/tex] →[tex]2 KNO_3 + CaBr_2[/tex]
[tex]2Al +6HCl[/tex] → [tex]2AlCl_3 +3H_2[/tex]
[tex]2C_2H_6+7O_2[/tex] → [tex]4CO_2+6H_2O.[/tex]
What is a balanced chemical equation?A balanced chemical reaction is an equation that has equal numbers of each type of atom on both sides of the arrow.
Balanced chemical equation:
[tex]2 HCl + Mg(OH)_2[/tex] → [tex]2 H_2O + MgCl_2[/tex]
[tex]3 Ca(ClO)_2[/tex] → [tex]2 CaCl_2[/tex] + [tex]Ca(ClO_3)_2[/tex]
[tex]2 KBr + Ca(NO_3)_2[/tex] →[tex]2 KNO_3 + CaBr_2[/tex]
[tex]2Al +6HCl[/tex] → [tex]2AlCl_3 +3H_2[/tex]
[tex]2C_2H_6+7O_2[/tex] → [tex]4CO_2+6H_2O.[/tex]
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A gas has a pressure of 98kpa at 30 depress celsiusm. what will the new pressure be if the temperature is increased to 35 degrees celsius
Answers
Answer:
99.6 kpa (or maybe 124.2 kpa <======see below)
Explanation:
Assuming constant volume: ( I also assumed +30 C initial temp)
P1/T1 = P2/T2
T2 * P1/T1 = P2 (T must be in K )
(35 + 273.15) * 98 /(273.15 + 30) = 99.6 kpa
Just in case this was -30 C to start, the answer would be 124.2 kpa
requires temperatures of millions of degrees K
Answers
what happens when you mix hydrogine, potassium and sodium
Answers
Answer:
-
Explanation:
As the piece of metal skitters across the surface of the water in a beaker and — particularly in the case of potassium — it appears to catch fire, it is not obvious that the explanation for both phenomena lies in the production of hydrogen gas.