2 years ago

Need help ASAP! Describes volume?

Chemistry

1 answer:

frutty [35]2 years ago

8 0

Answer:

a definite to indefinite

Explanation:

because if it is in liquid the volume is trusted,but if it is in gas the volume would have multiplied

i think u can pit it well

You might be interested in

Calculate the number of moles in a 2.98 g sample of aluminum.

Ksju [112]

Molar mass <span>Aluminium ( Al) = 26.98 g/mol

1 mole ------------ 26.98 g
? mole ----------- 2.98 g

moles Al = 2.98 x 1 / 26.98

moles Al = 2.98 / 26.98

= 0.110 moles

hope this helps!

</span>

3 0

2 years ago

What's 5 type of energy

Law Incorporation [45]

Kinetic Energy.

Potential Energy.

Mechanical Energy.

Chemical Energy.

Thermal Energy.

8 0

3 years ago

Which elements in the periodic table are metalloids or have semimetallic properties?

inessss [21]

B, As only are metalloids or have semimetallic properties.

3 0

2 years ago

A sample contains 25% parent isotope and 75% daughter isotopes. If the half-life of the parent isotope is 72 years, how old is t

alisha [4.7K]

The radioactive decay obeys first order kinetics

the rate law expression for radioactive decay is

$ln\frac{[A_{0}]}{[A_{t}]}=kt$

Where

A0 = initial concentration

At = concentration after time "t"

t = time

k = rate constant

For first order reaction the relation between rate constant and half life is:

$k=\frac{0.693}{t_{\frac{1}{2} } }$

Let us calculate k

k = 0.693 / 72 = 0.009625 years⁻¹

Given

At = 0.25 A0

$ln(\frac{A0}{0.25A0})=0.009625 X time$

time = 144 years

So after 144 years the sample contains 25% parent isotope and 75% daughter isotopes**

Simply two half lives

5 0

2 years ago

Read 2 more answers

A nitrde ion has 7protons,8nutrons and 10 electrons. what is the overall change

Rama09 [41]

Answer:

the overall charge on the nitride anion is

( 3 − ) .

N power 3 − → the nitride anion

6 0

2 years ago