final chemistry 2020

The subatomic particle with a negative charge is the

• electron
• proton
• neutron
• nucleus 

Which of the following is not a compound?

• HCl
• Cl
• NaCl
• CO2

Which is NOT a characteristic of metals?

• Conduct heat
• Conduct electricity
• Shiny
• Semiconductor

All the elements on the left side of the periodic table are called..

• Metals

• Metalloid

• Nonmetals

Density is...

• the amount of mass in an object
• the amount of space an object takes up
• the amount of mass in a given space
• the weight of an object

A _________ is a substance made of two or more DIFFERENT elements chemically combined. 

• mixture
• compound
• substance 

What are the molecules doing when ice is melting?

• speeding up
• staying the same
• slowing down
• vibrating

An example of physical property is?

• flammability 
• ability to rust 
• acidic 
• color

When you observe a physical property, the substance ______?

• changes 
• doesn't change 
• burns 
• melts

In this chemical equation , CH₄ and 2O₂ are called the...

• Products

• Reactants

• Coefficient

• Subscript

Tags

NGSS.MS-PS1-2