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melisa1 [442]
2 years ago
10

Help asap thank u!!!!

Chemistry
1 answer:
9966 [12]2 years ago
5 0
I think the answer is the last answer at the bottom
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Pls answer fast chem questions
gregori [183]

I don't recognize this problem, please make sure the input is complete.

7 0
3 years ago
2. What is the volume of 40.0 g of N2 at STP?
vampirchik [111]

Answer:

Molar mass of

N

2

=

28 g/mol

Moles of

40.5 g N

2

gas

=

40.5 g

28 g/mol

=

1.45 mol

1 mol

of any gas at

STP

occupies

22.4 L

of volume.

1.45 mol

of

N

2

gas will occupy

1.45

mol

×

22.4 L

1

mol

=

32.48 L

3 0
2 years ago
Tell how many moles of each element are in the following amounts of each compound
qwelly [4]
Take note of the subscript written for each element in the compound. To find the total number of moles, make sure to multiply the subscript with the number of moles of compound. The answer for each is written below:

a. 3*1 = 3 moles Nitrogen; 3*3 = 9 moles Hydrogen
b. 0.25*2 = 0.5 moles Hydrogen; 0.25*1 = 0.25 moles Oxygen
c. 5*2 = 10 moles Hydrogen; 5*1 =5 moles Sulfur; 5*4 = 20 moles Oxygen
d. 0.75*1 = 0.75 moles Calcium; 0.75*1*2 = 1.5 moles Nitrogen; 0.75*3*2 = 4.5 moles Oxygen
7 0
3 years ago
Which of the following terms describes carbon tetrachloride?(CCI4)
garri49 [273]
The Answer is C.Compound
5 0
3 years ago
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Which image shows a foliated metamorphic rock?
Sonbull [250]

Answer:

dark coloured rock with coarse grains in parallel layers

Explanation:

8 0
3 years ago
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