Hull Chem Unit 2 Jeopardy

Elements, Compounds, and Mixtures

100

What is the definition of an element

Only 1 type of atom

200

What types of matter exist as pure substances

Elements and compounds

300

How many capital letters in the formula of an element

1

400

What is the definition of a mixture

Different types of matter physically combined

500

Draw a mixture of an element and a compound with at least five particles

Drawing should include: 

Element = only 1 type of atom

Compound = 2+ atoms chemically bonded

The different particles should be mixed together in drawing

Law of Conservation of Matter

100

If the mass of the products of a chemical reaction are 10 grams, what was the mass of the reactants that reacted?

10 g

200

If 10.0 g of water completely decomposes to form 7.0 grams of oxygen gas, how much hydrogen gas should also be produced?

3.0 g

300

If 10.0 g of ice sublimes to form steam, what will be the mass of the steam

10.0 g

400

What is the definition of the law of conservation of matter

Matter cannot be created or destroyed during a chemical reaction, instead it is conserved

500

Draw 2 molecules of Sq₂T decomposing into T₂ and Sq₂. Make sure your drawing abides by the law of conservation of matter

Drawing should include:

2 molecules of Sq₂T

1 molecule of T₂

2 molecules of Sq₂

Separation Techniques

100

What separation technique would be used to separate the pigments of ink

chromatography

200

Are chemical or physical properties used to separate the components of a mixture

Physical

300

What technique would be used to separate a homogeneous mixture of two liquids with different boiling points

Distillation

400

If rice, salt, and water were all mixed together, how would you separate them out

1) Pour salt water through filter - anything dissolved will pass through filter with water, now rice is separate

2) Evaporate off the water so that salt and water are separate

500

What separation technique could you use to remove sand from alcohol

Filteration

Physical/Chemical Properties and Changes

100

What type of change is a phase change?

physical

200

Is melting point an intensive or extensive property

Intensive

300

What type of change occurs when you place a beaker of water on a preheated hot plate, and gaseous water forms

Physical change

400

An unexpected temperature change indicate what type of change

Chemical

500

What type of change does dissolving represent?

Physical change

Wild Card

100

In order to be classified as matter, something must have _________________ and ________________

mass and volume

200

True or false: whenever bonds are broken or formed, a chemical change is taking place

True

300

Which state of matter is the most compressible

gases

400

What does temperature measure?

The average kinetic energy the the atoms/molecules in a sample

500

Draw and label a molecule of an element and a molecule of a compound

Molecule of an element must be 2+ atoms bonded together that are the same type, molecule of a compound must be 2+ atoms bonded together that are different