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VladimirAG [237]
3 years ago
9

A reaction which forms a gaseous product is an example of a(n)_______

Chemistry
1 answer:
pshichka [43]3 years ago
3 0
Gas evolution reaction.
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How many moles are there in 1.505 X 1024 molecules of water, H2O?
KATRIN_1 [288]

Answer:

2.5 moles

Explanation:

Nᴀ=6.02×10²³ (constant)

n=N/Nᴀ=

=  \frac{1.505 \times 10 ^{24} }{ {6.02 \times 10}^{23} }  = 2.5 \: moles

5 0
3 years ago
How much silver is produced is 15.00 grams of cu is added to the solution of excess silver nitrate?
il63 [147K]
First write out the balanced equation. 3Cu+2Ag(NO3)3=2Ag+3Cu(NO3)2
Then convert copper from grams to moles
15 g*1 mol cu/63.54 g= 15/63.54 mol cu
Then use the mole ratio to convert Moles Cu to Moles Ag
15/63.54 moles Cu* 2 moles Ag/3 moles Cu
The final awnser is (15*2)/(63.54*3) moles Ag =0.157 moles Ag. If the question wants the answer in grams, convert from moles Ag to grams Ag.
0.157 moles Ag*107.87 g Ag/ mol Ag=16.98 g Ag
6 0
3 years ago
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natali 33 [55]

Answer:

1) trigonal planar

2)tetrahedral

3)trigonal pyramid

4) linear

8 0
2 years ago
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IgorC [24]

Answer:

Halogen Family of elements

Explanation:

Group Seventeen

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2 years ago
Chemistry - please help!!​
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