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Harman [31]
3 years ago
14

Could anyone help me with question 3?

Chemistry
1 answer:
Masteriza [31]3 years ago
8 0
What your question for number 3
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What is N? (Needed electrons)
lianna [129]
Do you know what is meant by needed? does it mean lone pairs?
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3 years ago
If 16.4 grams of calcium nitrate is heated as shown in the reaction:
vfiekz [6]

Answer:

7.2

Explanation:

you first have to find the number of moles of nitrogen dioxide by using the number of moles for calcium nitrate and the mole to mole ratios

number of moles of calcium nitrate=mass/mm

=16.4/102

=0.16g/mol

then you use the mole to mole ratios

2 : 4

0.16: x

2x/2=0.64/2

x=0.32g/moles of nitrogen dioxide

then you use the formula for the volume

v=22.4n

=22.4×0.32

=7.2

I hope this helps

4 0
2 years ago
Helppp plss
wlad13 [49]

Answer:

Earth's atmosphere contains a huge pool of nitrogen gas (N2). But this nitrogen is “unavailable” to plants, because the gaseous form cannot be used directly by plants without undergoing a transformation. To be used by plants, the N2 must be transformed through a process called nitrogen fixation.

7 0
2 years ago
A third baseman throws a ball from third to first. The ball travels a 20 m/s of 2 seconds. What is the distance between third ba
umka21 [38]

Answer:

the answer would be D

Explanation:

5 0
3 years ago
Which of these space missions visited the moon several times?
sesenic [268]

Answer:

Voyager 1

Explanation:

Voyager 1 is a space probe launched by NASA on September 5, 1977. Part of the Voyager program to study the outer Solar System, Voyager 1 was launched 16 days after its twin, Voyager 2

3 0
3 years ago
Read 2 more answers
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