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3 years ago

6

In this chemical formula: 3NH4 (ammonium) This chemical formula means there are 3 _______ _, and 4 ____

______ in each molecule.

1 answer:

seropon [69]3 years ago

5 0

Answer:

hope it helped you

Explanation:

3 atoms of nitrogen and 4 atoms of hydrogen in each molecule

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Calculate the number of moles in 15.6 grams of CH4 gas

svp [43]

19.6 is your answer hope this is right

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3 years ago

Keratinocytes begin to die in the stratum granulosum. Keratinocytes begin to die in the stratum granulosum. True False

Scrat [10]

Answer:

FALSE

Explanation:

Keratinocytes begin to die in the stratum granulosum is False.

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3 years ago

3.87 moles of iron bromide yielded10.4 moles of sodium bromide

Roman55 [17]

Answer: 89.57 %

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3 years ago

The mass and volume of each box is given in the chart below. Calculate the density of each box. Density = Mass/ volume which box

stira [4]

Box C will have the greatest density.

All boxes have the same volume.

Explanation:

We calculate the density using the following formula:

density = mass / volume

density of Box A = 10 g / 20 cm³ = 0.5 g/cm³

density of Box B = 30 g / 20 cm³ = 1.5 g/cm³

density of Box C = 170 g / 20 cm³ = 8.5 g/cm³

Box C will have the greatest density.

All boxes have the same volume.

Learn more about:

density

brainly.com/question/952755

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7 0

3 years ago

How many 20.0-g ice cubes are required to absorb 47.0 kJ from a glass of water upon melting?

Sati [7]

Hello!

The number of 20-g ice cubes required to absorb 47 kJ from a glass of water upon melting is 7 icecubes

Why?

We are going to clear from the equation of the released heat, the mass of ice (m). The specific latent heat of fusion of ice is 336 kJ/kg:

$Q=m*L\\ \\ m=\frac{Q}{L}=\frac{47 kJ}{336 kJ/kg}=0,1399 kg=139,88 g\\ \\ 139,88g*\frac{1 icecube}{20g}=6,99=7icecubes$

So, 7 ice cubes are required to absorb that amount of heat from the glass of water.

Have a nice day!

3 0

3 years ago