Chemistry Unit Test Review

A physical change is

• a change where the characteristics do not change the substance

• a change where the characteristics do change the substance

• a change where the chemistry changes

What are the 3 particles that make-up the atom?

• protons, neutrons, and isotopes
• neutrons, isotopes, and electrons
• positives, negatives, and electrons
• protons, neutrons, and electrons

Tags

NGSS.MS-PS1-1

If reaction starts with 20g of reactants, it will produce ---

• a total of 40g of product

• a total of 10g of product

• a total of 80 g of product

• a total of 20g of product

Tags

NGSS.MS-PS1-5

Is the equation below balanced and following the law of conservation?

2H₂ + 2O₂ --> H₂O

• Yes

• No

Tags

NGSS.MS-PS1-5

What is the left part of a chemical equation called?
2H_{2 +} O₂ --> 2H₂O

• Reactants
• Products 
• Yields 
• Chemical Equation 

Tags

NGSS.MS-PS1-5

The positive particles of an atom are 

• electrons 
• positrons 
• neutrons 
• protons 

Protons are equal to:

• Atomic Mass
• Number of neutrons
• Atomic Number
• All of the subatomic particles

a grouping of elements based on similar properties, arranged by columns in the periodic table; also known as a group

• family

• period

• row

• isotope

Elements in a ..................have similar chemical properties.  

• period
• group
• row

How many elements are in C₆H₁₂O₆?

• 1
• 2
• 3
• 4

Tags

NGSS.MS-PS1-1