Amplify Chemical Reactions

In a word equation, the starting chemicals are called...

• reactants

• products

• ingredients

In this chemical reaction, which is the product/s?

• magnesium

• magnesium and oxygen

• magnesium oxide

• oxygen

Tags

NGSS.MS-PS1-1

magnesium + oxygen --> magnesium oxide If you started with 5g of magnesium and 2.5g of oxygen, what mass of magnesium oxide would be produced?

• 5g

• 2.5g

• 7.5g

• 10g

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

When energy is transferred from the substances to the surroundings during a chemical reaction, what type of reaction is this?

• endothermic

• exothermic

• decomposition

• combustion

Tags

NGSS.MS-PS3-4

In a chemical reaction, the temperature is measured and it appears to increase. Is this an example of an exothermic or endothermic reaction?

• exothermic

• endothermic

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

In a chemical reaction, everything to the right of the arrow is called ______________.

• Products

• Yields

• Molecules

• Reactants

Tags

NGSS.MS-PS1-5

Which of the following models best demonstrates a balanced chemical equation?

• F

• G

• H

• J

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What are Chemical Reactions?

• It's when you mix substances.

• a process in which atoms rearrange to form new substances

• When something bubbles.

• letter and numbers showing the types and number of atoms

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following is NOT evidence that that a chemical reaction has occurred?

• produces light/heat

• production of a gas

• formation of a precipitate

• melting

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

A teacher is demonstrating physical and chemical changes to her class. Which action should she use to demonstrate a chemical change?

• cutting a piece of paper

• folding a piece of paper

• tearing a piece of paper

• burning a piece of paper

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5