Year 9 - Chemistry - Revision

is this chemical equation balanced?

• yes

• no

what is this ?

• a Molecule

• an atom

• 
• 

What are the three components found in an atom?

• Protons

• energy

• electrons

• neutrons

• nucleus

Protons are..

• negative charged

• neutral charged

• positive charged

a neutron is..

• positive charged

• neutral charged

• negative charged

an electron is..

• negative charged

• positive charged

• neutral charged

What is an isotope?

• A particle

• A poisonous dart frog

• Isotopes are variants of a particular chemical element which differ in neutron number.

• Dust

Bases that are soluble in water are called ////

• dissolvers

• vitamins

• quatrins

• Alkalis

What is an acid?

• 
• In chemistry, a salt is a solid chemical compound consisting of an ionic assembly of cations and anions. Salts are composed of related numbers of cations and anions so that the product is electrically neutral.

• a substance with particular chemical properties including turning litmus red, neutralizing alkalis, and dissolving some metals; typically, a corrosive or sour-tasting liquid of this kind. Often contrasted with alkali and base.

• 

The compounds or elements present at the end of a reaction 

• reactants
• catalyst
• products
• energy