Chemistry

Question 1

What type of movement do solid particles have

Answer 1

Vibratory

Question 2

What type of movement do liquid particles

Answer 2

Vibratory, translation, rotation

Question 3

Gas particles move how

Answer 3

Random

Question 4

What is a mechanical mixture

Answer 4

When multiple particles are in something but they are distinguishable

Question 5

What is a solution

Answer 5

When a pure substance has more then one type of particle. Distinguishable

Question 6

What is a solvent and solute

Answer 6

A solvent is usually water and a solute that mixed. The soloution is the end product when they are homogenous

Question 7

What is an alloy

Answer 7

When two or more metals mix

Question 8

Is lustre physical

Answer 8

Yes

Question 9

Is optical clarity physical

Answer 9

Yes

Question 10

Is brittleness (flexiness) physical

Answer 10

Yes

Question 11

Is malleability (change shape without breaking) physical

Answer 11

Yes

Question 12

Is ductility (resistance against being turned into thin strands) physical

Answer 12

Yes

Question 13

Is viscosity physical

Answer 13

Yes

Question 14

Is hardness (scratch) physical

Answer 14

Yes

Question 15

Is conductivity physical

Answer 15

Yes

Question 16

What is the formula for density

Answer 16

Mass/volume

Question 17

What is the formula for mass

Answer 17

Density X volume

Question 18

What is the formula for volume

Answer 18

Mass/density

Question 19

How many cm3 in 1ml

Answer 19

1

Question 20

How many cm3 in 1m3

Answer 20

1000000cm3

Question 21

Is toxicity chemical

Answer 21

Yes

Question 22

Is reactivity chemical

Answer 22

Yes

Question 23

Is combustibility chemical

Answer 23

Yes

Question 24

Is corrosion (rust) chemical

Answer 24

Yes

Question 25

Is synthesis (reacting with other to create product). Chemical

Answer 25

Yes

Question 26

Is stability chemical

Answer 26

Yes

Question 27

What are signs of chemical change

Answer 27

Change in Color, odor, state, producing a gas, heat

Question 28

What did dalton discover

Answer 28

Atoms

Question 29

What did JJ Thomson discover

Answer 29

Electrons

Question 30

What did Rutherford discover

Answer 30

Location of electrons

Question 31

What did Chadwick discover

Answer 31

Nucleus, protons and neutrons

Question 32

What did Bohr discover

Answer 32

Bohr-Rutherford model

Question 33

What are isotopes

Answer 33

Different atoms of the same element. Proton number and atomic weight

Question 34

What is the equation for charge

Answer 34

Protons - electrons

Question 35

What is the mass number equation

Answer 35

PROTON + neutron

Question 36

Why does salt remove ice

Answer 36

Because impurities added to ice decrease the freezing tempature

Question 37

Why is ice less dense than water

Answer 37

Because the hydrogen elements can bond with more atoms

Question 38

Which groups are reactive

Answer 38

Alkali, Earth metal, transition metals, Halogen (create salt)

Question 39

What is a chemical formula

Answer 39

Notation used to indicate the type and number of atoms in a pure substance

Question 40

What are diatonic elements

Answer 40

Elements that form molecules consisting of two atoms. Hydrogen, Nitrogen, Oxygen, Fluorine, Chlroine, Bromine, Iodine.

Question 41

What are ionic compounds

Answer 41

Compounds with metal and non-metal. Covalent are everything else

Question 42

What charge do electrons, protons, and neutrons have

Answer 42

Electron negative. Proton positive. Neutron neutral

Question 43

What is a cat/ an ion

Answer 43

Cat is positively charged