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IceJOKER [234]
3 years ago
9

Main group elemants are arranged in _______ groups

Chemistry
1 answer:
Lorico [155]3 years ago
3 0

Answer: susuus

hdhjhd

Explanation: sjsjsj

shshsh

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What controls traits in organisms? A.Cell Membrane B.Cell Wall C.Genes D.Punnett Square
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I believe it's C (the genes)

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3 years ago
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Perform the following calculations to the correct number of significant figures.
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Answer: 460.624

Explanation:
1. Multiply the numbers
(24.5260 x 2.56) + 397.84
= (62.784) + 397.84

2. Add the numbers
(62.784) + 397.84
= 460.624
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What is the chemical symbol for iron
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The atomic symbol for Iron is Fe, as the Latin word for Iron is <em>ferrum</em>.
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Select all of the following statements that represent the differences between a voltaic cell and an electrolytic cell. Group of
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  • Electrode with the lowest reduction potential is reduced in an electrolytic cell
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3 years ago
If 23.6 g of hydrogen gas reacts with 28.3 g of nitrogen gas, what is the maximum amount of product that can be produced?
Aleonysh [2.5K]

Answer:

34.3 g NH3

Explanation:

M(H2) = 2*1 = 2 g/mol

M(N2) = 2*14 = 28 g/mol

M(NH3) = 14 + 3*1 = 17 g/mol

23.6 g H2* 1 mol/2 g = 11.8 mol H2

28.3 g N2 * 1 mol/28 g = 1.01 mol N2

                                 3H2 + N2 ------> 2NH3

from reaction         3 mol    1 mol

given                   11.8 mol    1.01 mol

We can see that H2 is given in excess, N2 is limiting reactant.

                                 3H2 + N2 ------> 2NH3

from reaction                     1 mol         2 mol

given                                 1.01 mol      x

x = 2*1.01/1= 2.02 mol NH3

2.02 mol * 17g/1 mol ≈ 34.3 g NH3

8 0
3 years ago
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