All categories

2 years ago

Hey can anyone help me with this please ?

1 answer:

7 0

B: second one
C: third one
A: Third one

You might be interested in

Nina [5.8K]

I think it might be 2 but I could be mistaken sorry if I am

7 0

2 years ago

vekshin1

Answer:

The sum of the molar masses of each isotope of the element.

7 0

2 years ago

Sveta_85 [38]

Answer:

mass of salt 6.72g

Explanation:

mass of the combine mass with salt- mass of the empty beaker

36.176g−29.456g=6.72g

7 0

1 year ago

Ostrovityanka [42]

I would say the answer is C

7 0

3 years ago

alex41 [277]

Answer:

$1.39\times 10^{17}$ moles of water in $2.5\times 10^{18} g$ of water.

Explanation:

Mass of water = $m = 2.5\times 10^{18} g$

Molar mass of water = M = 18 g/mol

Moles = n = $\frac{m}{M}$

$n=\frac{2.5\times 10^{18} g}{18 g/mol}=1.39\times 10^{17} moles$

So, there are $1.39\times 10^{17}$ moles of water in $2.5\times 10^{18} g$ of water.

3 0

3 years ago