Benchmark vocab

Question 1

What are the three types of bonds

Answer 1

ionic, covalent, metallic

Question 2

What are the parts of an atom?

Answer 2

protons, neutrons, electrons

Question 3

The electrons on the outer level are called?

Answer 3

valance electrons

Question 4

What bond has an ionic charge?

Answer 4

ionic bonds

Question 5

What is the smallest particle into which a covalently bonded compound can be divided?

Answer 5

molecule

Question 6

A diatomic molecule is?

Answer 6

composed of only two atoms

Question 7

Define chemical bond

Answer 7

an interaction that holds atoms and ions together

Question 8

What type of element is most likely to gain electrons when it forms bonds?

Answer 8

non-metal

Question 9

Define malleability, conductivity, ductility

Answer 9

mall- to be hammered into sheets
duct-to be drawn into wires
con- to conduct electric current

Question 10

4Fe + 3O —– 2 Fe O, What are the reactants and products?

Answer 10

4Fe + 3O is the reactant and 2 Fe O is the product

Question 11

Give an example of synthesis, decomposition, double displacement and single displacement

Answer 11

syn- Na+Cl = NaCl
decomp- NaCl = Na + Cl
single- AB + C= AC + B
double- AB + CD = AC +BD

Question 12

Define the law of conservation mass, and law of conservation of energy

Answer 12

energy- cannot be created or destroyed but can be charged

mass- cannot be created or destroyed in chemical or physical changes

Question 13

What is required to break a chemical bond

Answer 13

energy

Question 14

What is needed to increase the rate of reaction

Answer 14

increase the tempature

Question 15

What substances can acids react with to produce hydrogen gas?

Answer 15

some metals

Question 16

explain what an acid is and and base and list some of their characterisics

Answer 16

an acid increases the number of hydronium ions and it has a sour taste
a base increases the number of hydroxide ions and it has a slippery feel

Question 17

when you mix a base and a acid it forms?

Answer 17

a neutralization reaction

Question 18

What are aromatic hydrocarbons based on?

Answer 18

benzene

Question 19

What type of hydrocarbon does a double and triple bond have?

Answer 19

un-saturated hydrocarbon

Question 20

Hemoglobin, which carries oxygen in the blood is a ?

Answer 20

protein

Question 21

glucose is a?

Answer 21

simple carbohydrate

Question 22

Calcium hydroxide is an acid or base?

Answer 22

base

Question 23

atomic number is equal to the?

Answer 23

protons and electrons

Question 24

the minimum amount of energy needed to start a reaction is called?

Answer 24

activation energy

Question 25

a value used to express acidity or alkalinity is called

Answer 25

pH

Question 26

How does an atom develop a charge?

Answer 26

losing or gaining from the electron

Question 27

Three properties of covalent bonds?

Answer 27

low solubility, low melting points, low boiling points

Question 28

Why does hydrogen have one valence electron and Helium have 2 valance electrons?

Answer 28

because hydrogen's atomic number is 1 and helium's atomic number is 2