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kvasek [131]
3 years ago
6

Plz hurry fast I need help !!!

Chemistry
2 answers:
NikAS [45]3 years ago
7 0

The Second one is Correct

This is   because there three extra protons (+) than electrons

Vikki [24]3 years ago
5 0

Answer:

USE SOCRATIC

Explanation:

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When a volcano erupts, sulfur oxides are released into the atmosphere. How does this volcano eruption affect precipitation
Inessa05 [86]

Answer;

it combines with the water and H in the atmosphere and creates sulfuric acid thus making the rain acidic

Explanation:

5 0
3 years ago
PLEASE HELP ME!!! ASAP
shtirl [24]

Answer:

Theoretical yield of the reaction = 34 g

Excess reactant is hydrogen

Limiting reactant is nitrogen

Explanation:

Given there is 100 g of nitrogen and 100 g of hydrogen

Number of moles of nitrogen = 100 ÷ 28 = 3·57

Number of moles of hydrogen = 100 ÷ 2 = 50

Reaction between nitrogen and hydrogen yields ammonia according to the following chemical equation

N2 + 3H2 → 2NH3

From the above chemical equation for every mole of nitrogen that reacts, 3 moles of hydrogen will be required and 2 moles of ammonia will be formed

Now we have 3·57 moles of nitrogen and therefore we require 3 × 3·57 moles of hydrogen

⇒ We require 10·71 moles of hydrogen

But we have 50 moles of hydrogen

∴ Limiting reactant is nitrogen and excess reactant is hydrogen

From the balanced chemical equation the yield will be 2 × 3·57 moles of ammonia

Molecular weight of ammonia = 17 g

∴ Theoretical yield of the reaction = 2 × 3·57 × 17 = 121·38 g

5 0
3 years ago
4Na + O2 2Na2O
beks73 [17]
4
N
a
+
O
2
→
2
N
a
2
O
.
By the stoichiometry of this reaction if 5 mol natrium react, then 2.5 mol
N
a
2
O
should result.
Explanation:
The molecular mass of natrium oxide is
61.98

g
⋅
m
o
l
−
1
. If
5

m
o
l
natrium react, then
5
2

m
o
l
×
61.98

g
⋅
m
o
l
−
1

=

154.95

g
natrium oxide should result.
So what have I done here? First, I had a balanced chemical equation (this is the important step; is it balanced?). Then I used the stoichiometry to get the molar quantity of product, and converted this molar quantity to mass. If this is not clear, I am willing to have another go
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Zinc Oxide is the IUPAC name for ZnO

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Laura and 50ml of foil and water to 100 ml of ice water into a freezer what at what temperature will the water freeze
rewona [7]
Don't understand the text, but water always freezes at 0°C as long as its water.
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3 years ago
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