Acids and Bases

?
  • Created by: alana
  • Created on: 10-11-12 02:52

1. What is a compound

  • A substance composed of two or more elements
  • An electrically charged atom or group of atoms, formed by the loss or gain of one or more electrons
  • A class of substances that cannot be seperated into simpler substances by chemical means
1 of 20

Other questions in this quiz

2. What is the atomic mass

  • The total number of protons and electrons in the nucleus
  • The total number of protons and neutrons in the nucleus
  • The total number of electrons and neutron in the nucleus

3. Reaction Rate

  • energy that an object possesses by being in motion
  • a measure of how fast reactants become products
  • Total area of exposed surfaces

4. What is surface area

  • a measure of how fast reactants become products
  • Total area of exposed surfaces
  • energy that an object possesses by being in motion

5. What is a nucleus

  • The centre of an atom composed of protons and neutrons possessing 89.9% of the mass
  • The centre of an atom composed of protons and neutrons, possessing 99.9% of the mass
  • the centre of a n atom composed of protons and neutrons, possessing 90% of the mass
View more questions

Comments

No comments have yet been made

Similar Science resources:

See all Science resources »