Magnesium carbonate decomposition on heating to form magnesium oxide and carbon dioxide. how many grams of magnesium oxide will be formed if 20 grams of magnesium

What compound contains the most elements

How many Joules are there in 55 nutritional calories?

An organic compound is composed of 38.7% C, 9.70% H, 51.6% O. The compound has a molecular formula mass of 62.0g/mol. What is the molecular formula of this organic compound? A) CHO B) C2H6O2 C) C4H6O4 D) C4H12O4

Classify each salt as acidic basic or neutral. licn alcl3 kbr

In a chemical reaction, the total mass of the reactants is 10.0 grams. After the reaction, the total mass of the products must be: less than 10.0 grams. exactly 10.0 grams. exactly 20.0 grams. more than 10.0 grams.

Why does one Oxygen atom bond with two Hydrogen atoms to form water? Why don't they bond in a different ratio?

Which type of research would be used if a scientist wanted to know how sugar impacted the growth of cancer cells? A. basic B. applied C. practical D. theoretical

To how much water should 250 mL of 12 M hydrochloric acid be added to produce a 4.0 M solution?

Which is the correct name for MgSO4•7H2O?

Iron has a density of 7.86 g/cm^3. Calculate the volume of a piece of iron having a mass of 3.99 kg.