# Chemistry Equation questions

- Created by: Da Thinker
- Created on: 12-05-20 09:23

## Other questions in this quiz

## 2. What would be the total relative formula mass of H2O, H=1, O=16?

- 20g
- 18g
- 16g
- 17g

## 3. How do we calculate the number of nuetrons a substance has?

- Atomic mass - Atomic number
- Atomic number - Atomic mass
- If you still don't know how to claculate the number of nuetrons an atom has, you certainly don't have a private education

## 4. How dow we calculate the number of Moles?

- Mass X Mr
- Mass/ Mr
- Mr/ Mass X 100
- Mass/ Mr X 100
- Mr/Mass

## 5. What is this equation calculating = (% of isotope1 divided by 100) X Ar isototope1 + (%isotope2 divided by 100) X Ar Isotope2 +...

- Reaching mass
- Calculating Relative mass on the periodic table
- Concentration
- Calculating the atom ecomony of two isotopes of the same element

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