Free PAX (RN) Questions and Answers

Question 1

Writing down chemical processes is called .

Accepted Answer

From left to right

Answer

From top to bottom

Answer

It doesn't matter how you write a chemical reaction.

Answer

From right to left

Question 2

Why does activation energy exist?

Accepted Answer

The minimum amount of energy required for a reaction to proceed

Answer

The transition state between reactants and products

Answer

A molecule that lowers the barrier to a reaction proceeding

Answer

The total change in energy of a chemical reaction

Question 3

A strong acid is which of the following?

Accepted Answer

HCl

Answer

OH-

Answer

CH3COO-

Answer

CH3COOH

Question 4

Out of 222, what percentage is 122?

Accepted Answer

55 percent

Answer

50 percent

Answer

30 percent

Answer

64 percent

Question 5

In only five minutes, a burrito artist can create 14 burritos. In one hour, how many burritos can she produce?

Accepted Answer

168

Answer

840

Answer

70

Answer

60

Answer

140

Question 6

The evolutionary ancestor of both fungus and plants, according to scientists, was:

Accepted Answer

Protists

Answer

Animals

Answer

Archaebacteria

Answer

Monera

Answer

Eubacteria

Question 7

Scientists have proposed that ____ are the evolutionary ancestors of protists that resemble plants, such as red and green algae, based on DNA analysis.

Accepted Answer

Cyanobacteria

Answer

Animal-like protists

Answer

Plants

Answer

Fungus-like protists

Answer

Fungus