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Andrews [41]
3 years ago
13

Animals need food air and water.which of the following is another need of animals

Chemistry
2 answers:
Readme [11.4K]3 years ago
6 0

Answer:

a habitat

Explanation:

Law Incorporation [45]3 years ago
3 0

a sanctuary could be one of them

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Electrical energy is the energy of__________
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Answer:

<h3>electrical energy is the energy of Kinetic energy </h3>

Explanation:

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2 years ago
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How many moles of gas are present in 1.13 L of gas at 2.09 atm and 291 K?
raketka [301]
<h2><u>Answer:</u></h2>

n = 0.0989 moles

<h2><u>Explanation:</u></h2>

n = PV / RT

P = 2.09atm

V = 1.13L

R = 0.08206

T = 291K

Plug the numbers in the equation.

n = (2.09atm)(1.13L) / (0.08206)(291K)

n = 0.0989 moles

3 0
3 years ago
Is concrete a homogeneous or heterogeneous mixture?
barxatty [35]
Heterogeneous mixture
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3 years ago
What do all viruses have in common? Choose more than one answer.
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1, 3, 4, and 5

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2 years ago
This is the chemical formula for talc Mg3(Si2O5)2(OH)2(the main ingredient in talcum powder):
Elena-2011 [213]

Answer:

0.022 mol O

Explanation:

Mg3(Si2O5)2(OH)2

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So, 1 mol of this substance has 12 mol oxygen.

So,  1 mol of this substance contains 3 mol Mg and  12 mol O, or

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1 mol Mg ----- 4 mol O

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x = 0.055*4/1 = 0.220 mol O

8 0
3 years ago
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