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ivann1987 [24]
3 years ago
15

How does the absorption and release of energy affect temperature change during a chemical reaction?  PLEASE HELP!!!!!!!!!!!!!!!

Chemistry
1 answer:
irga5000 [103]3 years ago
3 0
Heat is a form of energy. if the system absorbs heat/ energy it is endo thermic if it releases heat or energy it is eothermic
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Explain why the chemical formulas of ionic compounds are usually the same as their empirical formulas.
Licemer1 [7]

Answer:

All the ionic compounds are simplest combination of the atoms. All the empirical formulas are the simplest way to write the chemical formulas. Thus, the ionic compound is usually in its empirical state.  

Explanation:

Ionic compound are the chemical compound which are composed of the ions which are held together by the strong electrostatic forces which is termed as ionic bonding. The ionic compound is overall neutral, but it consists of positively charged ions which are known as cations and also negatively charged ions which are known as anions.

Since all the ionic compounds are simplest combination of the atoms and also,  all the empirical formulas are simplest way to write the chemical formulas, the ionic compound is usually in its empirical state.  

Thus it can be stated that:

All the ionic compounds are the empirical formulas, but not all the empirical formulas are the ionic compounds.

8 0
4 years ago
8
kirill115 [55]

Answer:

K

Explanation:

The picture that demonstrates a state of matter without a fixed shape or fixed volume is picture K.

Gases are one of the three states of matter without a fixed shape and volume. They simply take up the shape of their containers and are free to move all about.

  • Liquids and solids are known to have fixed shape and volume.
  • Liquids are know for their ability to flow. Figure L
  • Solids are rigid bodies. It is the figure J
7 0
3 years ago
How many liters of water are needed to prepare a 1.67M solution of Ba(OH)2 if you need to dissolve 235g of it?
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Answer: 2.04

Explanation:

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Explain why pure water has a very slight electrical conductivity.
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For electricity to flow there must be a flow of electrons or ions present in a system or medium. When electricity is passed in pure water, oxygen does not have d-orbitals or f-orbitals through which electrons may pass. In pure water there are no electrolytic substance, so no ions present in the pure water. Therefore electricity can not pass through pure water. Additionally; water cannot dissociate into OH- and H+ when electricity is passed through pure water.
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Critical thinking requires that
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C. Information from a particular source only be verified the first time the source is used
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