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ratelena [41]
3 years ago
13

Solids we need to live

Chemistry
1 answer:
gogolik [260]3 years ago
6 0
Foods are a solid we need to survive
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Some properties of liquid water are very different from those of solid water (ice). Explain why freezing is considered a physica
drek231 [11]

Answer:

A chemical change is a change in the chemical makeup of a substance and results in a new substance. Ice and water both have the same chemical makeup - ice is just a different state and has the same atoms but in an expanded form.

Explanation:

8 0
3 years ago
1. When you first opened the bottle of coke the pressure of gas in the coke (increased/decreased) and the dissolved gas( stays i
Serga [27]

Answer:

1. When you first opened the bottle of coke the pressure of gas in the coke (increased) and the dissolved gas(leaves) the coke. 2. When you placed the coke in hot water , the pressure of gas in the coke (increased) and the dissolved gas(leaves) the coke 3. Therefore to increase the solubility of a gas in a liquid ( that is to make a gas more soluble in a liquid.

Explanation:

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3 0
3 years ago
The gas in a closed container has a pressure of 3.00 x 10² kPa 30 ° C. What will the pressure be if the temperature is lowered t
Rainbow [258]

Answer: 100kPa

Explanation:

P1 = 3.00 x 10² kPa , P2 =?

T1 = 30°C = 30 +273 = 303k

T2 = —172°C = —172 + 273 = 101k

P1/T1 = P2/T2

3 x 10² / 303 = P2 / 101

P2 = (3 x 10² / 303) x 101

P2 = 100kPa

6 0
3 years ago
In what way are liquids different from solids?
Vladimir79 [104]

Answer:

a. Liquids do not have a fixed shape; solids do

Explanation:

I’m really sorry thats the only one I for sure know that is true...

5 0
3 years ago
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Which of the following is an example of a safe laboratory procedure?
ollegr [7]
<span>A is the correct answer. Tying back long hair and loose clothing is important so they don’t dangle in flames or liquids that could dissolve or bleach them, for example. The other choices - consuming food and drink from lab wares, touching hot objects without gloves on and inhaling odors - are examples of very unsafe procedures. </span>
3 0
2 years ago
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