When balancing an equation, what may you change?

The big numbers (coefficients) in front of formulae

What are the products of an acid reacting with a carbonate?

A salt, water and carbon dioxide

To make sure all the acid is neutralised

By precipitation, mixing two soluble solutions

Add nitric acid then silver nitrate; a white precipitate forms

A lit splint gives a squeaky pop

16questions. Pick an answer and you'll see why right away.

What is the formula of aluminium oxide (Al3+ and O2-)?
When balancing an equation, what may you change?
What does the state symbol (aq) mean?
What is the relative formula mass of calcium carbonate, CaCO3? (Ca 40, C 12, O 16)
How many moles are in 16 g of methane, CH4 (Mr 16)?
A compound has C and H in a mole ratio of 1 to 4. What is its empirical formula?
What does an acid produce in water?
What is the pH of a neutral solution?
What are the products of an acid reacting with a carbonate?
Which salt does sulfuric acid produce?
Why is excess insoluble base used when preparing a soluble salt?
How is an insoluble salt prepared?
What flame colour indicates potassium ions?
What is the test for chloride ions?
What is the positive test result for carbon dioxide?
What is the test for hydrogen gas?