Chem First semester study guide

The ability for something to do work requires

An educated proposal or answer to a problem in the scientific method is

Which are incorrectly paired

What has mass and takes up space

How does a physical change differ from chemical change

How many groups of elements are found on the periodic table

How many significant figures does the number 128 have

For matter as the mass increase the volume does what

Which is a pair of physical and chemical properties respectively of a substance

Rust forming on metals is an example of which following

How many significant figures does the number 0.22 have

Each element is composed of particles that can be destroyed by chemical reactions

What is the correct name for the ionic compound NaCl

How many hydrogen are there in one formula unit of H20

What unit would you use to measure volume

Wood burning in a fireplace is an example of a

What group of elements are known to not be reactive

The symbol Hg is an example of a

Chemistry is the science that investigates

The Electron has a positive charge

All Matter is composed of atoms and molecules

What unit would you use to measure time

All matter is composed of

Objects floating or sinking in water shows the following property of matter?

Science begins with observations of the physical world

The Unit for density is

What particle has a neutral charge and is found in the nucleus of an atom

Which is not a homogeneous mixture

The modern periodic table is organized by increasing

The amount of matter in an object is