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Question 1

What is the maximum number of electrons in the fourth principal energy level

Answer 1

32

Question 2

How many unpaired electrons are in a sulfur atom atomic number 16

Answer 2

2

Question 3

Which of the following changes is/are exothermic for the underlined object?

i. ICE melts
ii. Hot FRENCH FRIES cool
iii. a BREAKER warm does chemicals react within it
iv. A hot plate warm is a beaker of WATER
v. WATER evaporates off of skin

Answer 3

ii only

Question 4

Which of the following is/are metric units of volume?

i. mL
ii. L
iii. cm^3
iv. m
v. kg

Answer 4

i, ii, and iii

Question 5

Which of the following is a chemical property

Answer 5

Ability to react with oxygen

Question 6

What is the maximum number of D orbitals in a principal energy level

Answer 6

5

Question 7

For each of the following names choose the correct formula

i. oxide ion
ii. silver ion
iii. manganese(II) ion

Answer 7

O2-, Ag+, Mn2+

Question 8

What would likely happen if you were to touch the flask in which an endothermic reaction were occurring?

Answer 8

The flask would probably feel cooler than before the reaction started

Question 9

According to Hinesburg uncertainty principle if the position of a moving particle is known what other quantity cannot be known?

Answer 9

Velocity

Question 10

What causes the shielding affect your main constant across a period?

Answer 10

Electrons are added to the same principal energy level

Question 11

The quantum mechanical model of the Atom

Answer 11

Involves the probability of finding an electron in a certain position

Question 12

Which of the following is the best statement of the law of conservation of mass

Answer 12

In a chemical change, mass is neither created nor destroyed

Question 13

Which of the following properties is distillation based upon?

Answer 13

Boiling points

Question 14

The specific heat of silver is 0.24 j/g•c. How many joules of energy are needed to warm 4.37g of silver from 25.0 C to 27.5 C

Answer 14

2.62 Jay

Question 15

Which of the following can be a pure substance?

i. Gold
ii. Air
iii. Homogenized milk
iv. Sugar completely dissolved in water
v. Ice

Answer 15

i and v

Question 16

The temperature in the laboratory is posted as 290 5K. What is the temperature in degrees Celsius?

Answer 16

22°C

Question 17

What is the energy required to remove an electron from an Atom in the gaseous state called?

Answer 17

ionization energy

Question 18

How many jewels are in 148 cal?

1cal= 4.18 J

Answer 18

619 j

Question 19

Compared with the electronegativities of the elements on the left side of a period, the Electronegativities of the elements on the right side of the same period tend to be

Answer 19

Higher

Question 20

An example of an extensive property of matter is

Answer 20

Mass

Question 21

What is the physical state of nearly all ionic compounds at room temperature?

Answer 21

Solid

Question 22

What type of pure substance can be decomposed chemically into other pure substances?

Answer 22

A compound

Question 23

In Bohr’s model of an atom where are the electrons and protons located

Answer 23

The electrons move around the protons, which are at the center of the atom

Question 24

Which general electron configuration is responsible for the family properties of noble gases

Answer 24

Ns^2 np^6

Question 25

What does the symbol triangle H stand for?

Answer 25

The heat of reaction for my chemical reaction

Question 26

Applied research is carried out in order to

Answer 26

Solve a particular problem

Question 27

A theory is based described as a

Answer 27

Generalize Asian that explains a body of known facts or phenomena

Question 28

You need to transfer exactly 240 ML of the region from the stock regrant from the stock reagent bottle to a Valumetric flask, which of the following would be most useful to perform the transfer?

Answer 28

Graduated cylinder

Question 29

Which of the following is not a part of Dalton's atomic theory

Answer 29

Atoms are always in motion

Question 30

Match the fundamental charge and mass with appropriate subatomic particle

Answer 30

Electrons protons neutrons