Answer:- 14.0 moles of hydrogen present in 2.00 moles of ![[tex]C_6H_7N](https://tex.z-dn.net/?f=%20%5Btex%5DC_6H_7N)
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Solution:- We have been given with 2.00 moles of 
and asked to calculate the grams of hydrogen present in it. It's a two step conversion problem. In first step we convert the moles of the compound to moles of hydrogen as one mol of the compound contains 7 moles of hydrogen. In next step the moles are converted to grams on multiplying the moles by atomic mass of H. The calculations are shown as:
= 14.0 g H
So, there are 14.0 g of hydrogen in 2.00 moles of .
Answer:
Energy is halved.
Explanation:
Energy and Frequency are directly proportional. If frequency decreases, energy increases. If frequency increases, energy increases. If frequency is halved, energy is also halved.
Answer:
<h2>The answer is 6.12 g</h2>
Explanation:
The mass of a substance when given the density and volume can be found by using the formula
<h3>mass = Density × volume</h3>
From the question
density of rock = 1.36 g/mL
volume = final volume of water - initial volume of water
volume = 21.3 - 16.8 = 4.5 mL
The mass of the rock is
mass = 1.36 × 4.5
We have the final answer as
<h3>6.12 g</h3>
Hope this helps you
Answer:
1E, 6I, 7C, 8K, 9D, 10G, 4A, 5J, 3B, 2H, 11F
Explanation:
Coloumn A Coloumn B
1. E
2. H
3. B
4. A
5. J
6. I
7. C
8. K
9. D
10. G
11. F
