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Alexxx [7]
3 years ago
11

How many atoms of He are in 5.69 grams?

Chemistry
1 answer:
vfiekz [6]3 years ago
6 0

Answer:

ejdkcndnxk

Explanation:

cnc dkxkcndndmskckf

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When ammonium carbonate decomposes what gas is produced and will a glowing splint burn brighter in the presence?
mestny [16]
When ammonium carbonate is heated it decomposes to give ammonia gas, carbon dioxide gas and water. The equation for the decomposition is;
(NH4)2CO3(s) = 2 NH3 (g) + CO2(g) + H2O(l)
A glowing splint would extinguish almost immediately because of the presence of carbon dioxide. Carbon dioxide does not support burning which is the property that makes it used a s a fighter extinguisher.
7 0
3 years ago
What type of reaction is this?<br> N2 + 3H2<br> 2NH3
Levart [38]

Answer:

It is a combination reaction; nitrogen and hydrogen combine to form ammonia.

Explanation:

7 0
3 years ago
The
mel-nik [20]

Answer:

So the asnwer is 66666666666666666666666666666666666666666666666666666666666666666666666666666666666668888844444444444444444443299997832........................................................4563ygfdjuzgu3456655555555555555555555553444446445444444555554

Explanation:

7 0
3 years ago
Convert 2.17 x 10 -8 Mg into pg
viktelen [127]
This answer is 24 because 2.17 x 10 -8 is 24 so that would be your answer
4 0
3 years ago
Gold has a molar mass of 197 g/mol. (a) how many moles of gold are in a 3.98 g sample of pure gold? (b) how many atoms are in th
Natali5045456 [20]
A.)49.4974874 moles or 49.5 moles
B.)2.980808730172671e+25 or 3e+25
6 0
3 years ago
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