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nevsk [136]
3 years ago
14

Pls help me for this one :) is hard for me thx

Chemistry
2 answers:
zvonat [6]3 years ago
8 0

Answer:

protein

Explanation:

that the answer

Ilya [14]3 years ago
6 0
Answer Is Nucleic Acid
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Air is made up of different gases, such as oxygen, nitrogen, and carbon dioxide.
marysya [2.9K]

Answer:

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Explanation:

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2 years ago
If gas is truly to be classified as a form of matter this means it can be measured. What form of gas can be measured?
juin [17]

Answer:

Gas is sometimes measured in cubic feet at a temperature of 60 degrees Fahrenheit and an atmospheric pressure of 14.7 pounds per square inch. Gas production from wells is discussed in terms of thousands or millions of cubic feet (Mcf and MMcf). Resources and reserves are calculated in trillions of cubic feet (Tcf).

3 0
2 years ago
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A fixed mass of oxygen gas occupies 300cm cube at 0 degree centigrade. what volume would the gas occupy at 15 degree centigrade​
egoroff_w [7]

Answer:

Volume occupied by oxygen gas at 15 degree centigrade​ is equal to 316.5 centimeter cube

Explanation:

Assuming Pressure is constant.

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

where T1 and T2 are temperature in Kelvin

Substituting the give values we get-

\frac{300}{273} = \frac{V_2}{288}

V_2 = \frac{288*300}{273} \\V_2 = 316.5

Volume occupied by oxygen gas at 15 degree centigrade​ is equal to 316.5 centimeter cube

5 0
2 years ago
10 points !! Which can happen during a physical change?
Sveta_85 [38]
I think that the answer is A because if you think about water for an example. When water turns into ice, it's still technically water, just the molecules are frozen. The water is physically changed. It could also see why you think it is B but I don't think so completely. It doesn't really make sense to me. So I'd choose A. It's definitely not C or D.
5 0
3 years ago
Why baking soda is used to make doughnuts <br>Please answer it soon ​
inessss [21]

Answer:

<u>There are recipes that are made with both baking powder (for leavening) and baking soda (to facilitate browning by increasing the pH making batters and dough a little more alkaline).</u>

<u>hope</u><u> </u><u>this</u><u> </u><u>helpssss</u><u>.</u>

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3 years ago
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