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TEAS Science Practice Test 4

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Question 1 of 10

1. Question

A catalyst is able to speed up a chemical reaction by doing which of the following?

a. increase the transition state

b. lower the activation energy

c. decrease the thermal energy

d. increase the heat exchange

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Question 2 of 10

2. Question

Which of the following are specialized proteins that are able to perform catalytic functions?

a. lipids

b. catalase

c. enzymes

d. nucleases

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Question 3 of 10

3. Question

A solution has a recorded pH of 7.11. Which of the following is the best categorization of this solution?

a. weak acid

b. neutral

c. weak base

d. strong base

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Question 4 of 10

4. Question

Hexane has which of the following types of chemical bonds?

a. all single bonds

b. single and double bonds

c. single and triple bonds

d. double and triple bonds

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Question 5 of 10

5. Question

Water does not evaporate easily due to which of the following chemical properties?

a. polarity

b. hydrogen bonding

c. covalent bonding

d. ionic bonding

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Question 6 of 10

6. Question

Due to water’s polarity, water is known as which of the following?

a. a base

b. an acid

c. universal solute

d. universal solvent

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Question 7 of 10

7. Question

Gas particles are able to collide with each other as they move in random and rapid motion. Gas particles contain a high amount of which type of energy?

a. kinetic energy

b. potential energy

c. total energy

d. random energy

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Question 8 of 10

8. Question

An element that has 10 protons and 11 electrons would have which of the following charges?

a. +1

b. 0

c. -1

d. +1 and -1

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Question 9 of 10

9. Question

What subatomic particle(s) is/are located within the nucleus of an atom?

a. protons only

b. neutrons only

c. protons and electrons

d. neutrons and protons

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Question 10 of 10

10. Question

When Calcium (a metal) and Oxygen (a non-metal) form magnesium oxide, how is the chemical bond between the elements formed?

a. by the transfer of protons

b. by a transfer of electrons

c. by the equal sharing of electrons

d. by the unequal sharing of electrons

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TEAS Science Practice Test 4

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