Chemistry

Question 1

Reaction

Answer 1

elements combine or something, erica is fat

Question 2

physical

Answer 2

physical, seeing or touching, color, texture, etc.

Question 3

chemical

Answer 3

properties not observable, flammability, etc.

Question 4

catalyst

Answer 4

something that speeds up a chemical reaction

Question 5

change

Answer 5

8th grade theme, erica grow fatter, elements change

Question 6

element

Answer 6

pure substance, all atoms have same number of protons

Question 7

single bond

Answer 7

share 1 electron

Question 8

double bond

Answer 8

share 2 electrons

Question 9

formula

Answer 9

chemical formula, shows elements that combine or something

Question 10

atomic mass

Answer 10

mass of an atom

Question 11

metals

Answer 11

high electron conductivity, based on location in periodic table

Question 12

non-metals

Answer 12

not metals

Question 13

metalloids

Answer 13

transition metals, in between the metalloids and the non-metals (ladder)

Question 14

atoms

Answer 14

smallest building block of matter

Question 15

valence electrons

Answer 15

number of electrons in the outermost layer, determines bonding

Question 16

electrons

Answer 16

negative charge orbiting in the electron shell/cloud

Question 17

protons

Answer 17

positive charge in the nucleus, determine element

Question 18

neutrons

Answer 18

no charge, in nucleus

Question 19

electron shell/cloud

Answer 19

energy levels where electrons are found

Question 20

orbitals

Answer 20

s, p. d, f

Question 21

nucleus

Answer 21

middle of atom, holds protons/neutrons

Question 22

subscript

Answer 22

tells how many atoms of an element there is