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2 years ago

Where can you change the atom/molecules used in the simulation? Which atoms/molecules are

Chemistry

1 answer:

aivan3 [116]2 years ago

7 0

Answer:

When two or more atoms are chemically joined together, this is called a molecule. In some cases, such as hydrogen and oxygen, the molecule is made entirely of the same atom, such as hydrogen gas (a molecule) is made entirely of two hydrogen atoms. Here, converting molecules to atoms is as simple as dividing by two.

Atoms can join together - they form bonds together - to make MOLECULES. For example, two atoms of hydrogen hook together to form a molecule of hydrogen

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Write down the molecular formula and molecular weight of carbon dioxide .

Finger [1]

Answer:

CO2

Molar mass: 44.01 g/mol

Explanation:

CO2

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3 years ago

Which relationship can be used to aid in the determination of the heat absorbed by bomb calorimeter?

NARA [144]

Answer:

ΔH = $q_{p}$

Explanation:

In a calorimeter, when there is a complete combustion within the calorimeter, the heat given off in the combustion is used to raise the thermal energy of the water and the calorimeter.

The heat transfer is represented by

$q_{com}$ = $q_{p}$

where

$q_{p}$ = the internal heat gained by the whole calorimeter mass system, which is the water, as well as the calorimeter itself.

$q_{com}$ = the heat of combustion

Also, we know that the total heat change of the any system is

ΔH = ΔQ + ΔW

where

ΔH = the total heat absorbed by the system

ΔQ = the internal heat absorbed by the system which in this case is $q_{p}$

ΔW = work done on the system due to a change in volume. Since the volume of the calorimeter system does not change, then ΔW = 0

substituting into the heat change equation

ΔH = $q_{p}$ + 0

==> ΔH = $q_{p}$

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4 years ago

Which of the following contains ionic bonding? (2 points)

kiruha [24]

I think its B but im not sure...

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3 years ago

Read 2 more answers

A vehicle travels at the same speed from point A to point B then from point B to point A

Ber [7]

Answer:

The speed is positive either direction.

Explanation:

It is given that, a vehicle travels at the same speed from point A to point B then from point B to point A.
We know that speed is a scalar quantity and velocity is a vector quantity.
Speed has only magnitude while velocity have both magnitude as well as direction.
In this case, the vehicle will have positive speed in either direction.
Hence, the correct option is (D)

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4 years ago

Which of the following correctly describes molecules of two different gases if they are at the same temperature and pressure?

Eduardwww [97]

Answer: C. They must have the same average kinetic energy.

Explanation: I got it right

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3 years ago