All categories

3 years ago

Please help me fast, I will give brainliest if correct!

Chemistry

1 answer:

Angelina_Jolie [31]3 years ago

4 0

Answer:

The first one.

Explanation:

You might be interested in

1 point

lawyer [7]

Answer:

Explanation:

you're moving the decimal 8 spots to the left so it can only be B

6 0

3 years ago

Deffense [45]

Answer:

(a) (i) 44

(ii) 88 and 36

(iii) 2.2

(b)H₂–C=C–H₂

7 0

4 years ago

Please answer in details. what class of carbon is coal

klio [65]

Coal falls under Graphite

4 0

3 years ago

What intermolecular forces occur between two methane molecules?

nikklg [1K]

Dipole-dipole interactions , example: ammoni forces, example: methane, CH4Hydrogen bonding example: water, H2O

4 0

3 years ago

Calculate the volume in milliliters of a iron(II) bromide solution that contains of iron(II) bromide . Round your answer to sign

miv72 [106K]

This is an incomplete question, here is a complete question.

Calculate the volume in milliliters of a 1.29 mol/L iron(II) bromide solution that contains 275 mmol of iron(II) bromide . Round your answer to significant 3 digits.

Answer : The volume of iron(II) bromide solution is, $2.13\times 10^2mL$

Explanation : Given,

Concentration of iron(II) bromide = 1.29 mo/L

Moles of iron(II) bromide = 275 mmol = 0.275 mol

conversion used : 1 mmol = 0.001 mol

Now we have to calculate the volume of iron(II) bromide.

$\text{Volume of iron(II) bromide}=\frac{Moles of iron(II) bromide}}{\text{Concentration of iron(II) bromide}}$

Now put all the given values in this formula, we get:

$\text{Volume of iron(II) bromide}=\frac{0.275mol}{1.29mol/L}=0.213L=2.13\times 10^2mL$

Thus, the volume of iron(II) bromide solution is, $2.13\times 10^2mL$

5 0

3 years ago