Science 14 - Unit A exam cloned 8/9/2022 - Kim Greven | Laabri

1

These WHMIS symbols are displayed on a can of solvent. They indicate that the solvent is:

flammable and toxic

flammable and corrosive

dangerously reactive and toxic

dangerously reactive and corrosive

1

Food preservation tehcniques cause physical and chemical changes. Which of the following methods is based on a chemical change?

salting

canning

freezing

fermentation

1

Copper has many practical advantages over gold because copper is

purer than gold

softer than gold

anneals better than gold

holds an edge better than gold

1

John Dalton proposed four ideas in his model of the atom. Which of the following is not part of his model?

all matter is made up of small indivisible particles

atoms of different elements have different properties

atoms are never created or destroyed during a chemical reaction

all the atoms of an element are identical in properties such as size and mass

1

Which of the following is a general property of bases?

taste sour

turn litmus red

conduct electricity

react with Mg to produce hydrogen bubbles

1

The above reaction is:

an exothermic single replacement reaction

an endothermic single replacement reaction

an exothermic hydrocarbon combustion reaction

an endothermic hydrocabron combustion reaction

2

List two high risk behaviours associated with the misuse of alcohol.

2

List two health factors associated with the long-term use of tobacco products.

3

Name one career or occupation, other than chemist, in which some knowledge of chemistry is an asset or requirement. Briefly explain your answer.

1

Science 14 - Unit A exam cloned 8/9/2022

Science 14 - Unit A exam cloned 8/9/2022

These WHMIS symbols are displayed on a can of solvent. They indicate that the solvent is:

Food preservation tehcniques cause physical and chemical changes. Which of the following methods is based on a chemical change?

Copper has many practical advantages over gold because copper is

John Dalton proposed four ideas in his model of the atom. Which of the following is not part of his model?

Which of the following is a general property of bases?

The above reaction is:

List two high risk behaviours associated with the misuse of alcohol.

List two health factors associated with the long-term use of tobacco products.

Name one career or occupation, other than chemist, in which some knowledge of chemistry is an asset or requirement. Briefly explain your answer.

When someone uses perfume, why do the people nearest smell it first?

These WHMIS symbols are displayed on a can of solvent. They indicate that the solvent is:

Food preservation tehcniques cause physical and chemical changes. Which of the following methods is based on a chemical change?

Copper has many practical advantages over gold because copper is

John Dalton proposed four ideas in his model of the atom. Which of the following is not part of his model?

Which of the following is a general property of bases?

The above reaction is:

List two high risk behaviours associated with the misuse of alcohol.

List two health factors associated with the long-term use of tobacco products.

Name one career or occupation, other than chemist, in which some knowledge of chemistry is an asset or requirement. Briefly explain your answer.

When someone uses perfume, why do the people nearest smell it first?