Mixing & Seperating

Question 1

Pure substance

Answer 1

only 1 type of particle

Question 2

element

Answer 2

only 1 type of particle

(helium, gold, oxygen)

Question 3

compound

Answer 3

2+ particles joined together

(H2O, CO2, NaCl)

Question 4

mixture

Answer 4

more than 1 type of particle not joined

(sand, air, salt water)

Question 5

whats an atom

Answer 5

smallest particle of an element

Question 6

chemical change

Answer 6

creates a new substance

(car rusting)

Question 7

physical change

Answer 7

cant create a new substance

(hair drying)

Question 8

soluble

Answer 8

will dissolve

Question 9

insoluble

Answer 9

wont dissolve

Question 10

solvent

Answer 10

Liquid that does the dissolving

Question 11

solute

Answer 11

Substance that dissolves

Question 12

solution

Answer 12

mixture of solvent and solute

Question 13

molecule

Answer 13

Group of atoms bonded together

Question 14

Separation techniques (6 techniques)

Answer 14

Distillation
chromatography
evaporation
filtering
decanting
magnetic

Question 15

20 elements (h, he, li, be, b, c, n, o, f, ne, s, mg, al, si, ph, sul, ch, ar, k, Ca)

Answer 15

hydrogen, helium, lithium, berylium, boron carbon, nitrogen, oxygen, flourine, neon, sodium, magnesium, aluminium, silicon, phosphoruz, sulfur, chlorine, argon, potassium, calcium