How many moles of potassium bromide (KBr) are in 97.569 grams? *

79. Explain why the production of a gas does

natima [27]

Is evaporation of water considered a chemical reaction? No because it’s a physical change. Some reactions have gases as a product and some do not. Just because there’s a gas doesn’t mean a chemical reaction has occurred.

4 0

1 year ago

what sentence describes all atoms of one element A. They have the same number of isotopes B. They have the same properties C. Th

Daniel [21]

Answer:

C. They have the same number of protons.

Explanation:

Even though in isotopes, there's uneven number of neutrons, there's always same number of protons.

Hope it helps.

6 0

3 years ago

How does every singles cell in the body get the substances it needs to carry out the chemical reaction that provides it with ene

Lesechka [4]

And I don't exactly get what you are trying to ask hit me back up though

3 0

3 years ago

Read 2 more answers

Use enthalpies of formation to determine the ΔHreaction for the reaction

Daniel [21]

Answer:

The enthalpy is increased by the increased heat of the reaction.

Explanation:

In this reaction, as the transition from solid to liquid state, enthalpy increases, that is, the heat applied to change its state is greater and this increases, reaching a mayor disorder.

If the reaction increases its heat, and a liquid state passes, the enthalpy increases, therefore the disorder also and the entropy will also be increased.

5 0

3 years ago

27/13Al+4/2He >>>> 30/15P+

Veseljchak [2.6K]

Answer

Explanation:

27/13Al+4/2He >>>> 30/15P+

5 0

3 years ago