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What is the density of a sample if liquid the has a volume of 125 mL and mass of 200g

1.6g/mL

The chemical formula for table sugar is C 12 H 20 o 11 how many oxygen atoms are in each sugar molecule?

11

How many atoms are in a single molecule of Fe2O3?

5

Which of the following causes a chemical change Moving Shattering Burning Melting

Burning

Which of the following causes a chemical change moving shattering burning melting

Burning

How can a chemical change be reversed

By chemical changes

Which of the following results in a mixture baking a cake burn in the log dissolving salt digesting food

Dissolving salt

A chemical property of copper is its?

Reactivity

Which of the following is not an example of a physical property Freezing point Reactivity Boiling point Density

Reactivity

Which property of a substance is not affected by physical changes?

Reactivity

Which tool is best for separating a mixture of sand and water tweezers magnet centrifuge filter

Filter

The diamond is known for its?

Hardness

Matter is defined as anything that?

Has mass and takes up space

Which of the following is not a potential sign of chemical change change an oder change in color 15 point Lane

...

The mass of 20 l sample of gas with a density of 0.04 mg/l is

0.8 mg

Unlike a mixture a pure substance has?

A fixed composition

A material that can be represented by chemical formula is?

A pure substance

Which of the following is not a physical property of iron Melting point Ability to rust Color Conductivity

Ability to rust

Which of the following is not a physical property of iron melting point ability to rust color conductivity

Ability to rust

Which of the following is a physical change dissolving evaporating bending or all of the above

All of the above

Which of the following is a physical change dissolving evaporating bending or all the above

All of the above

The smallest unit of an element that maintains the properties of an element is an?

Atom

Which of the following is not a potential sign of chemical change?

Boiling

Digesting food is an example of?

Chemical change

Which of the following is made from at least two different types of Adams and element a molecule compound matter

Compound

A physical property of gold is it's?

Density

A physical property of gold is it?

Density

An objects volume can be found by dividing its mass by it's?

Density

And objects volume can be found by dividing that's mass by its

Density

You put a spoonful of salt and a 1 L of water and start the resulting liquid is an example of a

Homogeneous mixture

Which of the following is an element? Salt Iron Nylon Sand

Iron

The different substances in a mixture

Keep their properties

The different substances in a mixture?

Keep their properties

Helium is used in balloons because it is?

Lighter than air

Which of the following is not a pure substance Element Molecule Compound Mixture

Mixture

Which of the following is not a pure substance? Element Molecule Compound Mixture

Mixture

A group of atoms that acts as a unit is called?

Molecule

A chemical change occurs whenever

New substances form

Chemical changes can affect physical and chemical properties where as physical changes can affect

Physical properties

Solids, liquids and gases are three forms of matter that?

Take up space , have mass, are made of atoms


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