Day 2 Quiz

Two substances were mixed in a petri dish, and bubbles formed​ (a)   A liquid was poured into a flask, and the liquid took the shape of the container​ (b)   A beaker of water was heated on a hot plate, and steam formed.​ (c)   A liquid in one test tube was mixed with a liquid in another test tube, and a solid substance formed​ (d)  

• Bubbles

• Shape

• Steam

• Solid

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

An equation for a chemical reaction is shown.

Which statements provide the best evidence that mass is conserved in the reaction? Select TWO correct answers

• Four hydrogen atoms are in the reactants, and four hydrogen atoms are in the products..

• The atoms in the reactants are different than the atoms in the products.

• Five oxygen atoms are in the reactants, and ten oxygen atoms are in the products

• The atoms in the reactants are the same as the atoms in the products

• The compounds in the reactants are different than the compounds in the products

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which of the following observations indicate evidence of a chemical change? Select THREE correct answers.

• 
• 
• 
• 
• 

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

The word Dissolving

• Chemical

• Physical

Tags

NGSS.MS-PS1-2

The word evaporation​

• Physical Change
• Chemical Change

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5

Bubbling or Fizzing

• Physical

• Chemical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Formation of a precipitate

• Chemical

• Physical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

The word Melting

• Chemical

• Physical

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

A gas is formed

• Chemical

• Physical

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

What elements are listed

• Carbon, Hydrogen and Oxygen

• 142 g

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5