3 years ago

Please help It’s super quick

Chemistry

2 answers:

UkoKoshka [18]3 years ago

7 0

Answer:

1. a

Explanation:

2. c

Llana [10]3 years ago

3 0

Answer:

1 is A number two is C

You might be interested in

nitrogen is made up of two isotopes N-14 and N15. given nitrogen’s atomic weight of 14.007 what is the percent abundance of each

Oduvanchick [21]

The answer is n14 if it

8 0

3 years ago

Which of the following energy sources are in some way divided from the sun (select all that apply)

alukav5142 [94]

The correct answer is b

3 0

3 years ago

Iron has a density of 7.86 g/cm3. Calculate the volume (in dL) of a piece of iron having a mass of 4.07 kg . Note that the densi

elena-s [515]

Answer:

The volume of the piece of iron is 5.18dL.

Explanation:

The density (ρ) is equal to the mass (m) divided the volume (V).

$\rho = \frac{m}{V}$

If we rearrange it, we have:

$V=\frac{m}{\rho }$

To express the volume in dL we will need the following relations:

1 dL = 0.1 L
1 kg = 10³ g
1 cm³ = 1 mL
1mL = 10⁻³L

Then,

$\rho = \frac{7.86g}{cm^{3} } .\frac{1cm^{3} }{1mL} .\frac{1mL}{10^{-3}L } .\frac{1kg}{10^{3}g } =7.86kg/L$

Finally,

$V=\frac{m}{\rho }=\frac{4.07kg}{7.86 kg/L} =0.518L.\frac{1dL}{0.1L} =5.18dL$

5 0

3 years ago

Read 2 more answers

What was the event that triggered Nicole’s deterioration

inn [45]

Answer: A severe viral respiratory infection

8 0

3 years ago

Read 2 more answers

Energy due to the position of an object is called

Katena32 [7]

It’s A. potential energy
because it can move, due to how it’s placed,
it has “potential” for being able to gain energy

4 0

2 years ago