Chemistry of Life Part 1 Review

A substance that is formed as the result of a chemical reaction is a __________________

• Product

• Reactant

• Starters

• Enders

the starting materials in a chemical reaction

• Products
• Reactants
• Starters
• Enders

Tags

NGSS.HS-PS1-7

• Mg and O
• MgO
• Mg and MgO
• O and MgO

Tags

NGSS.MS-PS1-2

 A substance that cannot be broken down into any other substance by ordinary chemical means is called

• molecule
• mixture
• element
• compound

What are the products of the chemical reaction pictured?

• CH₄ and CO₂

• CH₄ and O₂

• CO₂ and 2 H₂O

• O₂ and H₂O

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What pH does a neutral substance have?

• 5

• 6

• 7

• 8

Which of the following is the weakest acid?

• bananas (pH 5)

• tomatoes (pH 4)

• cheese (pH 6)

• orange juice (pH 3)

What is pH a measure of?

• Density

• Mass

• Hydrogen Ion Concentraion

• Polarity

Which of the following pH values represents the greatest concentration of -OH ions?

• 3

• 6

• 9

• 1

Which of the following pH values represents the greatest concentration of H+ ions?

• 3

• 6

• 9

• 1