Atoms, Periodic table and Chemical Reactions review

Combining substances to form new substances is called

• Chemical reaction

• Physical reaction

• Exothermic reaction

• Endothermic reaction

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Put these in order from smallest to largest

• Electron

  Compound

  Atom

• Electron

  Atom

  Compound

• Atom

  Compound

  Electron

• Compound

  Atom

  Electron

Tags

NGSS.MS-PS1-1

What are the three types of elements?

• Metals - Noble gases - Alkali metals

• Solid - Liquid  - Gas

• Metals  - Non-metals - Metalloids

• Water - Hydrogen - Oxygen

A bond where electron(s) are stolen:

• Ionic bond

• Covalent bond

• Synthetic bond

• James bond

Tags

NGSS.HS-PS1-2

A bond where electron(s) are shared:

• Ionic bond

• Covalent bond

• Synthetic bond

• James bond

Tags

NGSS.HS-PS1-2

The number of atoms you begin with in a chemical reaction ...

• must be the same as the number of  atoms you end with
• must be an even number
• can be different to the number you finish with
• changes depending on how much energy is formed

Tags

NGSS.MS-PS1-5

Provides evidence that a chemical reaction has occurred. 

• dissolving 
• melting
• formation of a gas
• bending

Tags

NGSS.MS-PS1-2

In a chemical reaction, 4 grams of sodium must combine with how many grams of chlorine to produce 10 grams of table salt?

• 4 grams

• 6 grams

• 8 grams

• 10 grams

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What is the part of the chemical equation in green called?

Fe + S → FeS

• products

• reactants

• yield

• input

A candle wick burning is an example of a _________________________

• physical reaction
• condensation
• neutrons
• chemical reaction

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5