3 years ago

What happens to the mass when two substances chemically react?

1 answer:

7 0

Answer:

In a chemical reaction the total mass of all the substances taking part in the reaction remains the same. Also, the number of atoms in a reaction remains the same. Mass cannot be created or destroyed in a chemical reaction.

Explanation:

You might be interested in

Unknown element has two isotopes. Isotope A has a mass of 34 amu and abundance of 52%, isotope B has a mass of 33 amu and abunda

ZanzabumX [31]

Answer:

x = 33.52 amu

Explanation:

It is given that,

Isotope A has a mass of 34 amu and an abundance of 52%, isotope B has a mass of 33 amu and an abundance of 48%.

Let x is the average atomic mass of this element. It can be calculated as follows :

$x=52\%\ \text{of}\ 34+48\%\ \text{of}\ 33\\\\x=\dfrac{52}{100}\times 34+\dfrac{48}{100}\times 33\\\\x=0.52\times 34+0.48\times 33\\\\x=33.52\ \text{amu}$

So, the average atomic mass of this element is 33.52 amu.

4 0

3 years ago

Seans formula did not have any atmos of oxygen

Dafna1 [17]

What are you asking???? If the formula had no atoms of oxygen then......

8 0

3 years ago

What is the molecular formula of a compound containing 89% cesium (Cs) and 11% oxygen (O) with a molar mass = 298 g/mol?

Maurinko [17]

M(Cs)=133 g/mol
M(O)=16 g/mol
M(CsxOy)=298 g/mol
w(Cs)=0.89
w(O)=0.11

CsxOy

x=M(CsxOy)w(Cs)/M(Cs)
x=298*0.89/133=2

y=M(CsxOy)w(O)/M(O)
y=298*0.11/16=2

Cs₂O₂ cesium peroxide

6 0

3 years ago

Read 2 more answers

Please help I will reward Brainly

Lera25 [3.4K]

The first option: the basic unit of the nervous system

4 0

3 years ago

Read 2 more answers

The electron configuration for aluminum (Al) is shown below:

Serjik [45]

Answer: