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English 18 Public

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#Multiple choice #January

January is derived from what city?

Washington D.C.

London

Parish

Rome

15

Janus is the god of what?

doorways

beginnings

endings

15

In Latin January is for...

Cold

Janus

exit

doorway

15

How many days are in January?

30

28

31

10

What is the birthstone of January?

Diamond

Pearl

Garnet

15

January's zodiac signs are?

taurus and libra

scorpio and cancer

capricorn and aquarius

25

Which statement is correct about exothermic reaction?

Instant coldpack is an application of an exothermic reaction

Produces a decrease in temperature

Chemical equation: Reactants + Energy→ Products

Release energy in the form of heat or light

25

List 2 factors that affect to the rate of a reaction.

Concentration, Surface area, Temperature, Catalyst

20

What is the denotation of the number of moles of 1 substance?

n

10

Which formula is INCORRECT?

n = m : M

m = n x M

M = n x m

n = V : 24.79

15

Write the formula to calculate the molar mass of CaCO3.

M(CaCO3) = M(Ca) + M(C) + 3M(O)

15

Dissolve sugar into water. Which is solute?

water

sugar

10

Dissolve salt into water. Water is called...

solubility

solute

solvent

solution

15

What is indicator?

A compound that changes color at a specific pH value or in the presence of a particular substance

25

What gas does not cause acid rain?

H2

NOx

SO2

CO2

15

What kind of oxide is calcium oxide (CaO)?

amphoteric oxide

basic oxide

neutral oxide

acidic oxide

15