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Feliz [49]
3 years ago
7

Write a balanced chemical equation for dissolving calcium chloride in water.

Chemistry
1 answer:
jarptica [38.1K]3 years ago
3 0

CaCl2(s) -> Ca^2+(aq)+Cl(aq)

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How does the amount of salt dissolve in water affect the density of water
ad-work [718]

Answer:

Adding salt to the water increases the density of the solution because the salt increases the mass without changing the volume very much. When you add table salt (sodium chloride, NaCl) to water, the salt dissolves into ions, Na+ and Cl-. The volume increases by a small factor, but the mass increases by a bigger factor.

Explanation:

3 0
3 years ago
Which of the following is not a physical property?
kozerog [31]

Answer: Reactivity is not a physical property, it is a chemical property.

Explanation:

Physical property is a value of matter that can be observed and measured without any change in composition of the matter. Examples of physical properties are color, combustion,melting point,boiling point,solubility, texture, appearance, polarity, odor,viscosity, density and many more.

Chemical properties are characteristics that are obvious or seen when substances undergo chemical reaction. Examples are reactivity,toxicity, acidity, flammability, and heat combustion.

5 0
3 years ago
Ozone located in the troposphere is _______. A. Considered a pollutant b. Beneficial to living organisms c. Higher in concentrat
Aleonysh [2.5K]

The presence of ozone in the troposphere has been considered as pollutant. Thus, option A is correct.

The atmosphere has been divided into five layers based on the availability and the composition of different elements.

<h3>Troposphere</h3>

The troposphere has been the lowest layer of the atmosphere. It has been closed to the earth surface and provides with clouds and maintain weather.

The gases on the troposphere are used by the organisms for living purpose. The ozone has been a harmful gas for living organisms.

Thus, the presence of ozone in the troposphere has been considered as pollutant. Thus, option A is correct.

Learn more about troposphere, here:

brainly.com/question/201658

3 0
2 years ago
How many molecules in 8H2(g)+4O2
vlada-n [284]
The answer to your question is 16grams
7 0
2 years ago
An engineer uses aluminum to build an airplane rather than composite
lesantik [10]

Answer:

A

Explanation:

I would assume A because it says in the problem statement that chooses aluminum because he is worried that composite will suddenly fail... therefore he would use aluminum because it would bend before breaking and therefore show warning.

5 0
3 years ago
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