General Chemistry LAS 5-7

Properties

1

Which of the following is a chemical property of matter?

A) Boiling point

B) Flammability

C) Density

D) Solubility

B. Flammability

2

An intensive property does not depend on the amount of matter present. Which of these is an intensive property?

A) Mass

B) Volume

C) Total energy

D) Melting point

D. Melting point

3

It refers to how easily a solid can be pulled into wires. And give one (1) example of metal. 

Ductility

Examples: Copper, Gold, Silver, Aluminium 

4

An intensive property expressing the tight or loose packing relationship of mass to volume

density

5

The ability of a substance to absorb moisture from air without dissolving

Hygroscopicity

Nomenclature&Balancing

1

Chemical compounds consisting of exactly two different elements

Binary compounds

2

The system designating variable valences using suffixes or Roman numerals like Fe(II) and Fe(III)

Classical naming

3

What's the prefix addition in naming rule applied to a ternary acid containing one extra oxygen atom than the most common  acid with a suffix of -ic.

Example:
HClO₃ - chloric acid
HClO₄

Per

Perchloric acid

4

Which equation fulfills the Law of Conservation of Mass across the yield arrow?

A. 2Al₂O₃ ==> 4Al + 3O₂

B. Al₂O₃ ==> Al + O₂

C. C + H₂ ==> CH₄

D. P + O₂ ==> P₄O₁₀

A. 2Al₂O₃ ==> 4Al + 3O₂

5

__ CO₂ + __ H₂O    ==> __C₂H₂   + __O₂

After you balance this equation, what is the final coefficient in front of O₂?

5

Density

1

A cloud weights 3.60 g and has a volume of 1.45x10^(5)mL. It has a density of ________.

What is 2.48x10^(-5) g/mL.

2

A block of lead has a density of 5.65 g/cubic centimeter and a volume of 0.126 L. This block has a mass of ________ (g)

What is 711.9 g.

3

A soda has a a density of 4.71 g/cubic centimeter and a mass of 1.84x10^(8)micrograms. The soda has a volume of ________(mL).

What is 39.07 mL.

4

 After adding a baby into a tub that contained 12.0 L of water, the water now measures 14.6 L. The baby weighs 6.51 Kg. The density of the baby is _______ (g/mL).

What is 2.50g/mL.

5

A sample in a weigh boat is weighed as 10.5 g. The weigh boat has a mass of 5.60 g. The sample is added to a beaker containing 0.021 L of water and it now reads 0.034 L. The sample has a density of ______ (g/mL).

What is 0.38 g/mL.

Random Chem

1

A substance that has a definite volume but not definite shape is in the _______ phase.

What is liquid.

2

Chicken noodle soup is an example of a _________ mixture. (Homogeneous or heterogeneous).

heterogeneous.

3

215.15 K is ________ degrees C.

-58.00.

4

Density, melting point, malleability, hardness, and color are all examples of _______ properties.

physical

5

At what age did Juan Ponce Enrile pass away

101