Chemical Change Exam Review 2019-2020

Which equation does not follow the Law of Conservation of Matter?

What is anything that has mass and volume?

When salt is mixed with water, what BEST explains what happened to the salt molecules?

Which type of heat transfer occurs with direct contact between the heat source & the object?

Item 1 has mass of 2g/volume of 1cm³.  Item 2 has a mass of 4g/volume of 4cm³.  Which is true? 

If a substance changes pH, this indicates a ___ has taken place.

What is created when 2 substance combine, but retain their identity?

What is the gas product of photosynthesis?

What are constants?

What is the ability to transfer electricity?

Which of the following is NOT a reactant of photosynthesis?

Why are elements called the building blocks of matter?

What is involved in chemistry?

What are 2 or more like, or unlike atoms bonded together?

What is a chemical change that causes matter to be worn away?

A _____________ is a chain of monomers in a repeating pattern.

How are elements different than compounds?

What are the products of respiration?

How can you determine if 2 objects are made of the same substance?

Metals have which of the following property, or properties in common?

How many atoms of oxygen are in the formula 2Fe₂(SO₃)₃ ?

What is found in the nucleus of an atom?

What makes an atom's charge neutral?

What is the amount of matter in an object?

What type of heat transfer uses electromagnetic waves to heat the object?

What type of bonding takes place when Sulfur gives 2 electrons away to Oxygen?

Which is less dense, hot tea or cold tea?

The nail on your deck has rusted.  Which BEST describes the change?

What are 2 or more different atoms bonded together?

What are the products of photosynthesis?

Is the evaporation of dry ice a physical or chemical change?

What type of heat transfer occurs with an imbalance of temp, altering a fluid's density?

What is the chemical symbol for the element Copper?

An acid is known to taste ____.

What is the independent variable?

Which of the following is NOT an example of a synthetic polymer?

What does an element's location on the periodic table tell us?

How are chemical properties identified?

What is the control of an experiment?

How many neutrons are in a sodium (Na) atom?

Air is ...

Which is evidence of a chemical change?

What is the atomic mass of the element Lithium (Li)?

What is the dependent variable?

Is the oxidation of iron a physical or chemical change?

You have a toy with a volume of 15 cm³  and has a mass of 60 g.  What is its density?

The Law of Conservation of Matter means that...

What forms when atoms share electrons?

How many protons are in the element Boron (B)?

The freezing point of matter is the same as its ...

What is a change that takes place on the atomic level and produces a new substance?

If a substance changes its state of matter, what has taken place?