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just olya [345]
2 years ago
11

What is an example

Chemistry
1 answer:
Paha777 [63]2 years ago
7 0

Answer:

NaF sodium flouride

Explanation:

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Why shouldn’t we add water to sulfuric acid?
Kamila [148]

Answer:

If you add water to sulfuric acid, it can boil and spit and you may get a nasty acid burn.

Explanation:

5 0
3 years ago
4. How many grams are in 54 moles H,O?
Marrrta [24]

Answer:

Explanation:1.8

×

10

24

 water molecules.

Explanation:

There are  

6.022

×

10

23

molecules in a mole.

There are  

18.01528

grams of water per mole of water.

These can be figured out using the concept of moles and molecular weight. I have attached a video that provides a good explanation.

Explanation of moles and molecular weight

Now you have all the information needed to solve the problem.

You start out with 54 grams of water. You want to convert that into molecules, but how can you do that? You can't go directly from grams to molecules because there is no easy unit conversion. However, you can go from grams to moles using

18.01528

grams of water per mole of water.

From there, you can go from moles to molecules using  

6.022

×

10

23

molecules in a mole.

A T chart is useful for this kind of problem.

54 g H

2

O

×

1 mol  H

2

O

18.0152 g H

2

O

×

6.022

×

10

23

 

molecules

1 mol H

2

O

54

g H

2

O

×

1 mol  H

2

O

18.0152

g H

2

O

×

6.022

×

10

23

 

molecules

1 mol H

2

O

Notice when you apply this T chart, the units cancel out, leaving molecules in the final answer, which is the correct units.

Now actually multiply everything out

54

×

6.022

×

10

23

18.0152

=

1.805

×

10

24

You are left with  

1.8

×

10

24

water molecules (rounded to two sig figs).

8 0
3 years ago
Read 2 more answers
CHEMISTRY PLEASE HELP ILL GIVE U 20
dybincka [34]
The answer is c hope it helps
5 0
3 years ago
The formula relating mass and weight is W=
KatRina [158]

Answer:

The weight of an object is defined as the force of gravity on the object and may be calculated as the mass times the acceleration of gravity, w = mg.

Explanation:

<h3>W=F=M x G</h3>
6 0
2 years ago
Which dinosaur was able to hold its prey in its mouth firmly due to teeth that curved backward?
nikitadnepr [17]
<span>Deinonychus due to its backwards teeth</span>
6 0
2 years ago
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