🔬 Science & Research

Chemistry basics

Atoms, bonds, the periodic table, acids and reactions — the groundwork for every chemistry paper.

8questions

easydifficulty

+16max XP (1st try)

not rated yet

Question 1 of 8

What determines which element an atom is?

Question 2 of 8

An ionic bond forms when:

Question 3 of 8

A solution with pH 3 compared with pH 5 is:

Question 4 of 8

In a balanced chemical equation, what must be equal on both sides?

Question 5 of 8

Avogadro's number, 6.022 × 10²³, is the number of particles in:

Question 6 of 8

Oxidation is:

Question 7 of 8

Elements in the same group of the periodic table share:

Question 8 of 8

A catalyst changes a reaction by:

0/8 answered