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crimeas [40]
3 years ago
9

10 pts.Please help me with my Chemistry question. :'(plz.​

Chemistry
1 answer:
shutvik [7]3 years ago
6 0

Answer:

dang this hard I don't understand...

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Consider the energy diagram below.
nekit [7.7K]

Answer:

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3 0
3 years ago
What is the mass of 8.98 x 10^24 particles of CaCl2?
vladimir1956 [14]

Answer:

1656.12grams

Explanation:

To calculate the mass of a substance in a particle, we need to calculate the number of moles (n).

n = nA × 6.02 × 10^23

nA = 8.98 x 10^24 particles

number of moles = 8.98 x 10^24 ÷ 6.02 × 10^23

n = 8.98/6.02 × 10^ (24 - 23)

n = 1.492 × 10^1

n = 14.92moles of CaCl2

Molar Mass of CaCl2 where Ca = 40g/mol, Cl = 35.5g/mol

CaCl2 = 40 + 35.5(2)

= 40 + 71

= 111g/mol

Using mole = mass/molar mass

mass = molar mass × mole

mass = 111 × 14.92

mass = 1656.12grams.

8 0
3 years ago
Mass of CuSO4● XH2O (g) = 1.6 grams BEFORE HEATING
Leokris [45]

0.06105 moles is the number of moles of water lost.

<h3>What is molar mass?</h3>

Molar mass is defined as the mass in grams of one mole of a substance.

Given data:

Mass of water = 1.1g

Molar mass water = 18.016 g/mol

Moles of water =?

These quantities are related by the following equation;

Moles = \frac{Mass}{Molar \;mass}

Substituting the values of the quantities and solving for moles, we have;

Moles =  \frac{1.1 }{18.016} = 0.06105 moles.

Hence, the 0.06105 moles is the number of moles of water lost.

Learn more about molar mass here:

brainly.com/question/12127540

#SPJ1

7 0
2 years ago
What kind of graph would use for this data? The months of the year and the amount of rainfall, and why
Digiron [165]

Answer:

A Desert Climatogram is a graph that shows the temperature and rainfall, for each month in the year, for the Desert.

Explanation:

6 0
3 years ago
How many unpaired electrons does calcium have? You may need to draw the orbital filling diagram for the last sublevel that conta
beks73 [17]

Answer:

0

Explanation:

Ca has 20 electrons

6 0
3 years ago
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