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WorksheetsExploring Matter and Solutions Quiz
Total questions: 55
Worksheet time: 49mins
What is the chemical symbol for Sodium?
Na
S
N
So
Which of the following is a compound?
O 2
H 2 O
N 2
He
Identify the number of hydrogen atoms in the chemical formula CH 4 .
1
2
3
4
Which of the following is a physical change?
Rusting of iron
Burning of wood
Melting of ice
Baking a cake
What is the solute in a saltwater solution?
Water
Salt
Both water and salt
Neither water nor salt
How does increasing the temperature affect the rate of dissolution of a solid solute in water?
It decreases the rate
It has no effect
It increases the rate
It stops the dissolution
Compare and contrast elements and compounds in terms of their chemical symbols and formulas.
Elements have one type of atom and a single chemical symbol, while compounds have two or more types of atoms and a chemical formula.
Elements have two or more types of atoms and a chemical formula, while compounds have one type of atom and a single chemical symbol.
Both elements and compounds have the same type of atoms and chemical symbols.
Elements and compounds cannot be distinguished by their chemical symbols and formulas.
Using the periodic table, identify the number of oxygen atoms in the chemical formula CO 2 .
1
2
3
4
Explain why burning wood is considered a chemical change.
Because it changes the state of matter from solid to gas.
Because it produces new substances with different properties.
Because it can be reversed by cooling.
Because it only changes the appearance of the wood.
Describe how the concentration of a solution changes when more solute is added.
The concentration decreases.
The concentration remains the same.
The concentration increases.
The concentration becomes zero.
Investigate how increasing the surface area of a solid solute affects its rate of dissolution in water.
It decreases the rate of dissolution.
It has no effect on the rate of dissolution.
It increases the rate of dissolution.
It stops the dissolution process.
Compare and contrast the properties of elements and compounds using specific examples.
Elements like oxygen (O 2 ) and compounds like water (H 2 O) both consist of multiple types of atoms.
Elements like oxygen (O 2 ) consist of one type of atom, while compounds like water (H 2 O) consist of two or more types of atoms.
Elements like oxygen (O 2 ) and compounds like water (H 2 O) both have the same chemical properties.
Elements like oxygen (O 2 ) and compounds like water (H 2 O) cannot be distinguished by their properties.
Using the periodic table, determine the number of hydrogen and oxygen atoms in the chemical formula H 2 O 2 and explain their significance.
1 hydrogen and 2 oxygen atoms; it is a simple molecule.
2 hydrogen and 2 oxygen atoms; it is a compound with equal numbers of hydrogen and oxygen atoms.
2 hydrogen and 1 oxygen atom; it is a compound with more hydrogen than oxygen.
1 hydrogen and 1 oxygen atom; it is a simple molecule.
Analyze the differences between physical and chemical changes by providing examples and reasoning.
Physical changes, like melting ice, do not produce new substances, while chemical changes, like rusting iron, produce new substances with different properties.
Physical changes, like burning wood, produce new substances, while chemical changes, like melting ice, do not produce new substances.
Both physical and chemical changes produce new substances with different properties.
Neither physical nor chemical changes produce new substances.
Model how agitation affects the rate of dissolution of a solid solute in an aqueous solution and explain the underlying principles.
Agitation decreases the rate of dissolution by reducing the contact between solute and solvent.
Agitation has no effect on the rate of dissolution.
Agitation increases the rate of dissolution by increasing the contact between solute and solvent.
Agitation stops the dissolution process.
The letter, C, is a ... of carbon.
Name
Nickname
Chemical Symbol
Pseudonym
Which one of the following is an example of a physical change in matter?
fizzing produced when magnesium metal is added to acid
melting of sodium metal
sodium metal exploding in water
magnesium metal burning with a bright white flame
Is squeezing oranges to make orange juice a phyical or chemcial change?
The amount of KBr dissolved in water is a measurement of that solution's
concentration.
solubility.
solvency.
solute.
If more solvent is added the solution is (a)
If more solute is added the solution is (b)
If too much solute is added the solution becomes (c)
Which solution is more concentrated?
Solution 1:
500 mL of water
100 g of salt
Solution 2:
500 mL of water
90 g of salt
Solution 1
Solution 2
They have the same concentration
I have no idea
______________________________is made up of same atoms.
element
atom
electron
What is a solute?
A combination of two or more substances that are evenly mixed is a(n)
How many different elements are in C6H12O6?
1
2
3
4
How many atoms of carbon (C) are in C6H12O6?
3
6
12
24
Which is the correct formula for:
3 Hydrogen (H)
1 Sulfur (S)
4 Oxygen (O)
H3SO4
HSO4
H4S3O
H2O
The blue numbers in the image below represent _______
I don't know, and don't want to try
Coefficients
Subscripts
none of the answers are correct
How many TOTAL atoms are in:
H2SO4
6
5
7
3
How many atoms of Sodium (Na) are in 6NaCl?
1
12
3
6
How many hydrogen atoms are there?
1
4
5
6
How many nitrogen atoms are there?
4
8
10
20
How many phosphorus atoms are there?
0
1
3
4
How many molecules of methane are there?
0
1
2
4
How many atoms of carbon are there?
0
1
2
3
What is the density of water?
1
0.1
100
10
Based on the density, which objects will float on water?
Object (A) - 5.76
Object (B) - 0.75
Object (C) - 0.09
Object (D) - 1.45
Based on their density, which of these object will sink in water?
Object (A) - 2.94
Object (B) - 8.09
Object (C) - 0.32
Object (D) - 1.48
Objects whose density is greater than 1 will sink in water.
True
False
Which of these grouping of elements could have the characteristic of dull, brittle, and insulator?
Metalloid
