WorksheetsMidterm Review
Total questions: 55
Worksheet time: 5hrs 35mins
Volume is a measurement of:
the amount of particles a substance has.
the space an object occupies
How would you find the mass of an object?
Measure its dimensions with a ruler, and then multiply length x width x height
Water displacement
use a balance/scale
use a timer
To find the density of an object, you need to know its ____ and ___. This can be found using a ____.
mass
volume
weight
graduated cylinder and a balance
spring scale and a ruler
What is the volume of the liquid? How do you read it?
25 mL
24 mL
Eye level, bottom of the meniscus
Eye level, top of the meniscus
What does not change regardless of location, pressure, or gravity?
Volume
Density
If a pop can is pushed to the bottom of the ocean, where there's a lot of pressure, which of its measurements would change?
mass
volume
density
This model was simple and described atoms as tiny spheres that could not be broken down into smaller pieces.
Rutherford's Nuclear Model
Thompson's Plum Pudding Model
The Modern Model (aka Quantum or Cloud)
Dalton's Billiard Ball Model
The positive particles of an atom are
electrons
positrons
neutrons
protons
Most of the mass of an atom is found in its _____.
Which subatomic particle is located in the electron cloud?
Select two answers. Since there is no charge shown ____and ____ could represent protons or neutrons.
Blue (nucleus)
Red (nucleus)
Green (cloud)
Most of the volume of an atom is found in its ____.
electron cloud
nucleus
atomic number
empty space
In this picture, which are red (on the left side, except Hydrogen) on the periodic table?
metal
nonmetal
metalloid
In this picture, which are blue (on the right side, except Hydrogen) on the periodic table?
metal
nonmetal
metalloid
In this picture, which are yellow (zig-zag line) on the periodic table?
metal
nonmetal
metalloid
Elements in the same ↓ Group (Family) have the same number of -
protons
neutrons
quarks
valence electrons
Elements in the same ____are most like each other
→ period (row)
↓ Group (column, Family)
What type of bond do a metal and nonmetal form?
Ionic
Covalent
Metallic
Chaotic
What type of bond do two nonmetals form?
Ionic
Covalent
Metallic
Chaotic
Which of these are properties of metals?
malleable, ductile, conductive, high luster
brittle, insulator, dull
malleable, not ductile, semi-conductor, low luster
If Oxygen (0) and Magnesium (Mg) bond, what will happen? There are 3 answers.
Ionic Bond
Covalent Bond
Magnesium will lose an electron and Oxygen will gain an electron
Oxygen will lose an electron and Magnesium will gain an electron
The nonmetal will take the electron
2H2 + O2 --> 2H2O
Which of the following (3) are true about the Law of Conservation of Mass?
There will be the same amount of matter before and after a reaction, but it might be in a different form
Matter cannot be created
Matter cannot be destroyed
Matter cannot change forms
2H2 + O2 --> 2H2O
__P4 + __O2 --> __P2O3
Balance this equation.
__Mg + __Cl2 --> __MgCl2
1, 2,1
already balanced
2,1,1
1,1,2
Balance this equation.
__CF4 + __Br2 --> __CBr4 + __F2
2,1,2,1
1,2,2,1
1,2,1,2
2,2,2,2
A variable is
something that changes
something that stays the same
A constant is
something that changes
something that stays the same
A substance with a pH of 7 is -
acid
base
neutral
Select TWO answers. Elements:
are made of one type of atom
cannot be broken down any farther by chemicals or physical means
are energy, light, and sound
A substance with a pH above 7 is -
acid
base
neutral
A pure substance made of different elements that have been chemically combined to form a new substance
Element
Compound
Mixture
Two or more substances that are physically combined and retain their original properties
Element
Compound
Mixture
color, size, shape, odor, luster, viscosity, density, volume, mass, weight, state, malleable, ductile, soluble, conductor
Physical Properties
Chemical Properties
Flammability, Reactivity (air, water, acid, base)
Physical Properties
Chemical Properties
A substance with a pH of 3.5 is -
acid
base
neutral
salt
A substance with a pH of 11.5 is -
acid
base
neutral
salt
Has indefinite shape and indefinite volume. It is easily compressed.
Solid
Liquid
Gas
Plasma
Has definite shape and definite volume
Solid
Liquid
Gas
Plasma
Has definite volume but indefinite shape. It takes the shape of its container.
Solid
Liquid
Gas
Plasma
The sun, lightning, and neon lights are examples of:
Solid
Liquid
Gas
Plasma
How tightly packed together matter is (mass divided by volume)
Matter
Mass
Volume
Density
Select all that apply Matter....
Is made of large particles that are stationary and repel each other
Cannot be created or destroyed, only changed
Is made of tiny particles that constantly move and are attracted to each other
Is the stuff of the universe--anything with mass and volume.
Cannot change forms
The Period is -
the row →
the column ↓
The Group is -
the row →
the column ↓
↓ Group 18 are
Noble Gasses - have a full outer shell and do NOT bond (inert)
Noble Gasses - have a full outer shell and DO bond (reactive)
Halogens - are highly reactive and likely to bond with Group 1 and Group 2
Valence electrons are -
all the electrons
the outermost electrons capable of bonding
the electrons that neutralize the protons
gas
When a large nucleus (like Uranium) is split, causing a chain reaction that releases explosive force
Nuclear Fusion
Nuclear Fission
When small nuclei are exposed to intense heat and pressure, they join to create a larger nucleus, releasing huge amounts of energy
Nuclear Fusion
Nuclear Fission
Scenario A shows--
Nuclear Fusion
Nuclear Fission
