STRUCTURE OF MATTER I TEST REVIEW

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ATOMS

All matter is made up of small particles called _______________

WEAK

Compared to a solid, the molecular bonds of a liquid are __________________

5

Count the total number of atoms in CH4

5

Count the total number of atoms in CaCO3

3

Count the total number of atoms in H2O

4

Count the total number of atoms in NH3

2

Count the total number of atoms in NaCI

3

Count the total number of atoms in SiO2

WATER

H2O

CARBON: 1 OXYGEN: 2

List the number of atoms for each element in CO2

ELEMENTS

N2, O2 and Cu are __________________

1 g/cm3

One mL of water would have a density of ____________g/cm3

0.22

The cube has a mass of 3,300 g What is its density?

CORK

The cube has a mass of 3,300 g What substance is it?

23

What is the atomic mass?

11

What is the atomic number

LIQUID

a form of matter that has a definite volume but no definite shape is a __________________

OXYGEN HYDROGEN

a molecule of water is made from the bonding of one _______________ atom and 2 ____________ atoms

MIXTURE

a substance which contains various elements or compounds without bonding or in fixed proportions is a __________________--

MASS

amount of matter in an object

THE NUMBER OF PROTONS IS EQUAL TO THE NUMBER OF ELECTRONS

an atom has no electrical charge because _______________

INERT

an element which will not combine chemically is ______________

INSTANT OXIDATION

an explosion is an example of ___________________-

ATOM

basic unit of matter

NEILS BOHR

drew 1st picture of atom

EQUAL

for an object to float, the mass of the water displaced must _________________ the mass of the object

NEUTRON

has no electrical charge

8

how many electrons does it have in the n=2 orbit?

118

how many identified elements does the periodic table show?

12

how many neutrons does sodium have?

11

how many protons does sodium have?

VOLUME

l x w x h

DENSITY

mass/volume

CONCRETE

mixture

INNER SHELL

n = 1

MASS VOLUME

the 2 basic properties of all matter are __________ and ____________

MIXTURE

the air in the troposphere is a _______________________

DENSITY

the amount of mass per unit volume

PROTONS PLUS NEUTRONS

the atomic mass is a measure of ___________________

PROTONS & NEUTRONS

the atomic mass of an atom equals the sum of the masses of the _______________

COMPARISON WITH STANDARD MASS UNITS

the mass of an object is found by _____________________

MOLECULE

the smallest atomic unit which maintains the physical properties of a compound is a ___________________

ATOM

the smallest possible part of an element that can still be identified as the element is called _______________

FREEZING

the temperature at which a liquid changes to a solid is called its _______________ point

BUOYANCY

upward force of a liquid on an object

Na

what is the chcmical symbol for sodium


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