Chemistry Year End Review - Part 1

Question 1

What type of substance dissolves in water to form hydrogen or hydronium ions?

Accepted Answer

Arrhenius acid

Question 2

What is a mole?

Accepted Answer

All of the above

Question 3

Describe beta radiation?

Accepted Answer

medium to dangerous form of radiation, fast moving particle, electron from the nucleus

Question 4

What are two atoms called that have the same # of protons but different # of neutrons?

Accepted Answer

isotopes

Question 5

What type of mixture can be separated using a filter?

Accepted Answer

heterogenous

Question 6

How many significant figures are in the measurement 960.00 cm?

Accepted Answer

5

Question 7

What symbol could be used to identify a solid in a chemical equation?

Accepted Answer

(s), down arrow

Question 8

Where are the halogens on the periodic table?

Accepted Answer

Group 17

Question 9

What are valence electrons?

Accepted Answer

The outer electrons in an atom, Electrons that may take part in a chemical reaction

Question 10

What element has the electron configuration 1s22s22p63s3?

Accepted Answer

none

Question 11

What has a higher boiling point?

Accepted Answer

a solution

Question 12

Which phase of matter allows particles to move by each other but not fill their container?

Accepted Answer

liquid

Question 13

From the choices below, which part of the electromagnetic spectrum has the lowest energy?

Accepted Answer

microwaves

Question 14

The size of an atom is determined by...

Accepted Answer

the electron cloud

Question 15

What is the energy required to remove an electron from an atom or ion?

Accepted Answer

ionization energy

Question 16

what affects the solubility of a solid?

Accepted Answer

amount of solvent present, temperature, nature of the chemicals involved

Question 17

What is a dipole?

Accepted Answer

opposite charges separated by a distance, a polar molecule, a bar magnet

Question 18

What helps keep the pH constant when an acid or a base is added to it?

Accepted Answer

a buffer

Question 19

How is an ion created?

Accepted Answer

atom gains or loses electrons

Question 20

What is the correct name of CaNO3?

Accepted Answer

calcium nitrate

Question 21

What is another name for a period?

Accepted Answer

series, row

Question 22

What type of substance is KBr?

Accepted Answer

salt, ionic compound

Question 23

What type of molecule has a center atom with 3 bonds & an lone pair of electrons around it?

Accepted Answer

trigonal pyramidal

Question 24

What is the name of HNO2?

Accepted Answer

nitrous acid

Question 25

What is made of formula units?

Accepted Answer

ionic compounds

Question 26

Where are the alkali metals on the periodic table?

Accepted Answer

Group 1

Question 27

What are two atoms called that have the same # of protons but different # of electrons?

Accepted Answer

ions

Question 28

What is an element?

Accepted Answer

only something on the periodic table

Question 29

Was the dart player precise or accurate?

Accepted Answer

neither

Question 30

What shape would this molecule have?

Accepted Answer

trigonal planar

Question 31

What's an energy level?

Accepted Answer

relative distance electron is from the nucleus

Question 32

What is most likely an ionic compound that dissolves in water?

Accepted Answer

an electrolyte

Question 33

What type of ions do metals form?

Accepted Answer

positive, cations

Question 34

Which rule states that electrons build up around the nucleus from low energy to high energy?

Accepted Answer

Aufbau principle

Question 35

What does VSEPR theory explain?

Accepted Answer

why molecules take certain shapes

Question 36

Which elements take a 3+ charge?

Accepted Answer

Boron Family

Question 37

What type of chemical is this?

Accepted Answer

covalent compound, element

Question 38

Which type of reactions create a new element?

Accepted Answer

nuclear

Question 39

What is the Second Law of Thermodynamics?

Accepted Answer

Entropy of the universe increases

Question 40

What is the correct name of N2O4?

Accepted Answer

dinitrogen tetroxide

Question 41

Which number is a coefficient?

Accepted Answer

3

Question 42

What type of reaction takes place in the sun to provide us with its light & heat energy?

Accepted Answer

fusion

Question 43

What is BrINClHOF?

Accepted Answer

7 elements that cannot be found as single atoms in nature, the 7 diatomic elements

Question 44

What does the image below illustrate?

Accepted Answer

orbital diagrams

Question 45

What is half life?

Accepted Answer

The time it takes for half of a sample to decay

Question 46

Which type of reaction creates on single product?

Accepted Answer

direct combination

Question 47

When attractions are formed between the surface of a solute and a solvent...

Accepted Answer

a solution will form, the solute will dissolve

Question 48

Which scientist used alpha particles in his experiment?

Accepted Answer

Rutherford

Question 49

When a solute dissolves, this is called?

Accepted Answer

solvation

Question 50

What is a scientific theory?

Accepted Answer

An explanation

Chemistry Year End Review - Part 1

Questions 50

Chemistry Year End Review - Part 1

Questions 50