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3 years ago

Which chemical family tends to get rid of electrons by forming a compound

Chemistry

1 answer:

lisov135 [29]3 years ago

7 0

Answer:

group 1, 2 and 3 tend to get rid of electrons and start to form compounds with groups 7, 6, and 5.

Explanation:

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Consider a sample of calcium carbonate in the form of a cube measuring 2.805 in. on each edge.

Naya [18.7K]

Answer:

The answer to your question is: 8.82 x 10 ²⁴ atoms of oxygen

Explanation:

Data

Cube measuring : 2.805in on each edge

density = 2.7 g/cm3

# of oxygen atoms in the cube = ?

Process

Volume of the cube = (2.805)³ = 22.07 in³

Convert in³ to cm³ 1 in³ ------------------- 16.39 cm³

22.07 in³ -------------------- x

x = (22.07 x 16.39) / 1 = 361.72 cm³

Density = mass / volume

Mass = density x volume

Mass = (2.7)(361.72) = 976.66 g

Atomic mass CaCO3 = 40 + 12 + (16 x 3) = 100 g

100 g of CaCO3 -------------------- 48 g of O2

976.66 g of CaCO3 --------------- x

x = (976.66 x 48) / 100 = 468.8 g of O2

32 g of O2 ---------------------- 1 mol

468.8 g of O2 -------------------- x

x = (468.8 x 1) / 32 = 14.65 mol

1 mol ----------------------- 6.023 x 10 ²³ atoms

14.65 mol ------------------- x

x = (14.65 x 6.023 x 10 ²³) / 1 = 8.82 x 10 ²⁴ atoms of oxygen

3 0

3 years ago

400ml of 2.5M can be deluded to make how many of 2.0 HCI

ahrayia [7]

Answer:

The new volumen of the solution is 500 ml.

Explanation:

A dilution consists of the decrease of concentration of a substance in a solution (the higher the volume of the solvent, the lower the concentration).

We use the formula for dilutions:

C1 x V1 = C2 x V2

V2= (C1xV1)/C2

V2= (400 ml x 2,5 M)/2,0M

3 0

3 years ago

I want to tell my crush that I like him but we are virtual and I don't have a phone so I was going to email him. any advance on

siniylev [52]

Answer:

How to Tell Your Crush You Like Them Without Making Things Weird

Drop A Few Hints. ...

Give Yourself a Deadline. ...

Be Confident. ...

Make It Easy for Them. ...

But Also Make Sure You're Comfortable. ...

Consider How You Would Feel If You Didn't Tell Them. ...

Look At The Big Picture. ...

Stay Positive.

Explanation:

5 0

3 years ago

Which choice can be a solid, liquid, or a gas?

Katena32 [7]

I believe that your option C would be the correct answer. We know that water can turn to a solid materail because during cold temperatures, water turns to ice.

We know that water can turn to gas, as water can evaporate.

And also, we know that water is obviosly a liquid.

Therefore, Option C would be your answer.

3 0

3 years ago

Who discovered phosphate?

iris [78.8K]

Answer:

Hennig Brand

Explanation:

4 0

3 years ago