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Worksheets📚RMS: HW15 (10.02)
Total questions: 60
Worksheet time: 36mins
(#)This image shows three different phases of water. In which state are the molecules moving the fastest?
A
B
C
A and C
What phase change occurs when you start at D and end at E?
Freezing
Melting
Condensing
Vaporization
For each of these, match the correct unit of measurement
Triple Beam Balance
cm or mm
Graduated Cylinder
g
Metric Ruler
mL
Density
g/mL or g/cm3
Gas particles in a container would most likely
spread far apart, filling the container completely.
lock in place, keeping a shape unlike the container.
remain close together, resting at the bottom of the container.
None of these.
What is a solvent?
The substance that does the dissolving in a solution.
The substance that is being dissolved in a solution.
The mixing of different substances.
The process in which neutral molecules lose or gain electrons
Which two phase changes happen because energy leaves or is removed from the substance?
Freezing
Condensation
Vaporization (Boiling/Evaporation)
Melting
Which of the following described the properties of particles in solid? (Select all that apply).
Closely packed in orderly manner
Vibrate about fixed position
Very strong forces of attraction
Low kinetic energy
slide past each other
Match the following.
Subatomic particle with +1 Charge.
Proton
Subatomic particle with -1 Charge.
Electron
Subatomic particle with 0 Charge.
Neutron
Center Region of Atom, Positively Charged.
Nucleus
Outer Region of Atom, Negatively Charged.
Electron Cloud
Which of the following described the properties of particles in gas? (Select all that apply).
very far apart
move randomly at high speed in all direction
Vibrate about fixed position
high kinetic energy
Closely packed in disorderly,random manner
Match each term with its definition.
Solid
Definite Shape and Definite Volume
Liquid
Indefinite Shape and Definite Volume
Gas
Indefinite Shape and Indefinite Volume
Matter
Anything with Mass and Volume
Mass
Amount of Atoms
Balanced or NOT: Al + O2 ---> 2Al2O3
Balanced
NOT
Where on the graph are phase changes taking place?
1
2
3
4
5
Which of these state changes result in heat (energy) being removed (Select all that apply)?
Gas to Solid
Solid to Liquid
Solid to Gas
Liquid to Gas
Liquid to Solid
For each of these concepts match its corresponding meaning.
Density
The amount of mass per unit of volume of an object
Mass
The amount of atoms in an object.
Volume
The amount of space an object takes up.
Gravity
A measurement of the pull on an object's mass.
Water Displacement
Method used to determine the volume of an irregularly shaped object - uses graduated cylinder.
Match each state of matter with its particle arrangement.
Solid
Liquid
Gas
Which of these statements is TRUE of Solids?
Molecules are tightly packed.
Takes the shape of its container.
Constantly keeps its shape.
Molecules are spread far apart.
Arrange the states of matter in order, MOST compacted (close) to LEAST compacted (farthest away).
Arrange the states of matter in order, MOST compacted (close) to LEAST compacted (farthest away).
SOLID
L I Q U I D
G A S
Which of these state changes result in heat (energy) is added (Select all that apply)?
Gas to Solid
Solid to Liquid
Solid to Gas
Liquid to Gas
Liquid to Solid
Which state change is shown in BOX 4 (Hint: The arrow head points to the end state)?
Sublimation
Condensation
Deposition
Freezing
Boiling
Identify this sample (Select all that apply).
Elemental Molecules
Compounds
Molecules
Term: An action of matter that results in the creation of a new substance.
Physical Change (PC)
Chemical Change (CC)
Physical Property (PP)
Chemical Property (CP)
Identify the Physical Property (Select all that apply).
Ability to Burn
State of Matter
Density
Mass
Increase the rate of dissolution by ___.
Which of the following would increase the rate of dissolution of a solid?
Cool the solid solute and the solution.
Shake the solution.
Evaporate the solvent.
Break the solvent into smaller particles.
What happens to particles when heat is removed from them?
Which of the following is an example of a physical change?
Determine the number of electrons for these neutral elements.
6
54
22
8
7
Correctly identify these samples (for simplicity: we'll assume "mixture" is refers to heterogenous mixtures, as all samples of more than one, could be identified as a "mixture"😉).
Compounds
Mixture of Elements
Mixture of Elements and Elemental Molecules
Mixture of Elemental Molecules
Elemental Molecules
Students are studying various forms of matter. They just finished studying soils, liquids, and gases. Now they must draw a model that represents their observations. Which model best represents what happens to gas molecules in a closed container?
Mass Number + Atomic Number= Neutrons
Mass Number x Atomic Number = Neutrons
Mass Number - Atomic Number = Neutrons
Mass Number + Number of Protons = Neutron
Match the following.
Center Region of Atom, Positively Charged.
Nucleus
Outer Region of Atom, Negatively Charged.
Electron Cloud
The Number of Protons.
Atomic Number
The amount of Nucleons.
Mass Number
Occurs with different amounts of Neutrons.
Isotope
(#)At higher temperatures
Identify each element as Metal (M+), Non-Metal (NM-) or Metalloid (ML).
B
ML
Ca
M+
He
NM-
Identify each element as Metal (M+), Non-Metal (NM-) or Metalloid (ML).
Si
ML
H
NM-
K
M+
Determine the number of electrons for these neutral elements.
1
16
20
14
13
What letter on the diagram represents the substance only in the gas phase?
A
B
C
D
What letter on the diagram represents a substance only in the liquid?
A
B
C
D
On which parts of the graph does the temperature change?
Between C and D
Between D and E
At C, D, or E
On both flat sections
Match the following.
Class of Element, Shiny, Ductile, Malleable, and Great Electrical Conductor.
Metal
Class of Element, Dull, Brittle and Poor Electrical Conductor.
Non-Metal
Class of Element, Properties in Between M+ and NM-, Semi-Conductors.
Metalloid
Small number in chemical formula, indicates the number of atoms present for the element it follows.
Subscript
Large number in FRONT of chemical formula, used as a multiplier for the ENTIRE compound.
Coefficient
What will occur when the substance transitions from B to A? (Diagram A)
condensation
evaporation
melting
freezing
Match each Element with its correct atomic number.
Ne
10
Na
11
N
7
Ti
22
F
9
What happens at the AB line of this diagram (Select all that apply)?
Vaporization
Melting
Condensation
Freezing
Compared to the other states of matter, the slower the particles in a substance move, _____ (Select all that apply).
the colder it is.
the warmer it is.
the more energy it has.
the less energy it has.
Pure substances include (Select all that apply):
Elements
Homogeneous Mixtures
Compounds
Heterogeneous Mixtures
The law of conservation of mass states, ______.
Which of these is an element?
Salt (NaCl)
Water (H20)
Oxygen (O2)
Carbon Dioxide (CO2)
Balanced or NOT: 4HOCl + Cl2 ---> 2H2O + CO2 + 2Cl2
Balanced
NOT
Balanced or NOT: AlCl3 + 3H2O ---> Al(OH)3 + 3HCl
Balanced
NOT
H2C3O4N5
Balanced or Not: 4KMnO4 → 2K2O + 4MnO + 5O2
Balanced
NOT
Correctly match each part with its correct match.
Outermost electrons, responsible for all chemical reactions.
Valence Electron
Two Types, Covalent or Ionic.
Bond
Shiny, Ductile, Malleable and Great Electrical Conductors.
Metal
Located to the RIGHT of the Metalloids, except for Hydrogen (H).
Non-Metal
Located on the Stair-Step: B, Si, Ge, As, Sb, Po, Te, At.
Metalloid
Balanced or NOT: C5H12 + 6O2 ---> 5CO2 + 6H2O
Balanced
NOT
What happens at the AD line of this diagram (Select all that apply)?
Sublimation
Melting
Condensation
Freezing
Ionic or Covalent: N2O5
Ionic
Covalent
Mg2As3COHNi2
