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Radda [10]
2 years ago
10

Why are animals so impportant to our lifes

Chemistry
2 answers:
ivann1987 [24]2 years ago
5 0

Answer:

Animals are important because without them we wouldnt have any food

Explanation:

Greeley [361]2 years ago
4 0

Domesticated animals give us food, fiber and leather.

Wild animals, birds, fish, insects are important to from the web of activity in a functioning ecosystem.

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How does temperature, pressure and surface area affect the dissolving process
larisa [96]
If I am correct, yes. As I was told in chemistry, the surface area affects the dissolving of the "sugar". If you put regular Surat in a hot cup of coffee, it will dissolve at a quick pace, but what if you put the same amount of sugar in the same amour of coffee, but the sugar was fine powder? It would dissolve even faster since it has more surface area. So temperature does affect the dissolving. Hope this helps!
8 0
3 years ago
Read 2 more answers
A student decreases the temperature of a 556 c m cubed balloon from 278 K to 231 K. Assuming constant pressure, what should the
a_sh-v [17]

Answer:

The new volume of the balloon be 462\ cm^3.

Explanation:

We have,

Initial volume is 556 cm ³

The temperature of the balloon decreases from 278 K to 231 K.

We need to find the new volume of the balloon if the pressure is constant.

The Charles law states that at constant pressure, the volume of gas is directly proportional to its temperature i.e.

V\propto T, P is constant

\dfrac{V_1}{V_2}=\dfrac{T_1}{T_2}

V_2=\dfrac{V_1T_2}{T_1}\\\\V_2=\dfrac{556\times 231}{278}\\\\V_2=462\ cm^3

So, the new volume of the balloon be 462\ cm^3.

3 0
3 years ago
PLEASE HELPP
koban [17]

B

<u>Collisions between gas particles and the object</u> is the reason a gas exerts pressure  on the object.

Explanation:

Gas molecules usually have higher kinetic energy than that of liquid and solids. These molecules, therefore, collide with other molecules of the gas and if the gas is held in a container, the gas molecules will also collide with the walls of the container. As the kinetic energy of the gas molecules increases, due to increased energy input in the gas, so does the energy of collisions between the molecules and the molecules with the walls of the container. This is how the pressure of a gas in a container  increases with an increase in temperature.

Even though the gas molecules are tiny, the numerous collisions by the billions of gas molecules of the gas  apply a cumulative pressure.

Learn More:

For more on gas pressure check out;

brainly.com/question/13419262

brainly.com/question/13363709

#LearnWithBrainly

5 0
3 years ago
What is the formula for potassium citrate and how do you find it?
oee [108]

Answer:

Potassium citrate (also known as tripotassium citrate) is a potassium salt of citric acid with the molecular formula K3C6H5O7.

Chemical formula: K3C6H5O7

Density: 1.98 g/cm3

Melting point: 180 °C (356 °F; 453 K)

Boiling point: 230 °C (446 °F; 503 K)

Explanation:

7 0
3 years ago
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What happens when you increase the salinity
Tpy6a [65]

Answer:

There are parts of the ocean where hardly any rain falls but warm dry winds cause lots of evaporation. This evaporation removes water – when water vapour rises into the atmosphere, it leaves the salt behind, so the salinity of the seawater increases. This causes the seawater to become denser.

4 0
3 years ago
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