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xxTIMURxx [149]
3 years ago
13

What is the difference between mass and weight?

Chemistry
1 answer:
Helga [31]3 years ago
6 0

Answer:

Weight is the measure of the amount of force acting on a mass due to acceleration due to gravity.Mass is the scalar quantity and weight is a vector quantity. The unit of mass is kg while the unit of weight is N. Mass can't be changed by changing place, weight can be changed by changing the place.

Explanation:

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How many grams of a 34.2% potassium sulfate solution would contain 274.4 g potassium sulfate?
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3 0
4 years ago
How many moles of disulfur decafluoride are present in 3.99 x 104 molecules of this compound? moles
arsen [322]

<u>Answer:</u> The number of moles of disulfur decafluoride is 6.62\times 10^{-20}

<u>Explanation:</u>

We are given:

Number of disulfur decafluoride molecules = 3.99\times 10^4

According to mole concept:

6.022\times 10^{23} number of molecules are contained in 1 mole of a compound.

So, 3.99\times 10^4 number of molecules will be contained in = \frac{1mol}{6.022\times 10^{23}}\times 3.99\times 10^{4}=6.62\times 10^{-20}mol of disulfur decafluoride.

Hence, the number of moles of disulfur decafluoride is 6.62\times 10^{-20}

6 0
3 years ago
How many molecules are in 54.0 grams of CO2?
mote1985 [20]

Answer:

7.38654 in 54 grams

Explanation:

To get moles, you divide grams of a substance by molecular weight. The molecular weight of CO2 is 44 g/mol. 54g divided by 44/mol  is 1.227moles.

You then need to multiply moles by Avogadro’s constant (6.022x10^23). That gives you 7.38654x10^23 molecules in 54 grams of CO2.

6 0
3 years ago
Which option names two processes that must occur to form soil? weathering breaks rocks into minerals and plants die and decay er
jeka57 [31]

<u>Answer</u>:

"weathering breaks rocks into minerals and plants die and decay"  must occur to form soil

<u>Explanation</u>:

For the formation of the soil two process are mandatory and they are erosion as well as weathering. The weathering takes place near the surface of the soil, which can occur due to various physical and chemical processes. Being an important part of soil development. It may occur rapidly or can be a slow process for decades. Water and air helps in weathering. The transport is generally by wind or with the help of flow of water, ice, etc .,

8 0
3 years ago
Read 2 more answers
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