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WorksheetsTest Nov 8
Total questions: 38
Worksheet time: 58mins
2H2 + O2 ----> 2H2O What is the product?
->
2H2O
2H2+ O2
How many Hydrogen are in 4H2O?
4
8
2
6
A change in one or more substances, caused by a reaction, that forms new and different substances.
Mixture
Physical change
Element
Chemical change
A scientific explanation of the structure of atoms and how they interact with other atoms.
mixture
Compound
Atomic Theory
Element
How many elements are in the compound C2H8O ?
2
1
3
0
The measure of the energy of motion in the particles of matter, which we feel as how hot or cold something is.
Matter
Gas
Temperature
Atomic theory
A mixture that has the same composition throughout because all the parts are mixed evenly.
Reaction
Solution
Mixture
Atom
Anything that has mass and takes up space.
Volume
Matter
Solid
Temperature
The number of Sodium (Na) atoms in Na₂CO₃
1
2
3
6
How many elements?
Mg(NO3)2
9
6
3
10
How many atoms?
Mg(NO3)2
9
6
3
10
How many Sodium (Na) are in 6NaCl?
1
12
6
A combination of two or more different substances in which the substances keep their identities.
Reaction
Mixture
Solution
Atom
Which part of an atom is POSITIVELYcharged?
Protons
Neutrons
Electrons
Atoms
A subscript is the small number below a(n) ________ that tells the number of _______ of that element.
Element symbol atoms
Atom element symbol
Subscript protons
Compound element
How many Magnesium atoms are in 10MgCl2?
10
5
20
12
How many TOTAL atoms are in the compound?
C2H8O(K2Fe4)3
29
12
36
23
A substance made of atoms of two or more elements that have combined chemically.
Compound
Matter
Volume
Chemical change
The amount of space something takes up is called (a) .
The smallest unit into which an element can be divided and still retain all the properties of that element.
atomic theory
Compound
Element
Atom
How many atoms are present if there is no subscript following the element symbol?
0
2
Only 1
1 million
2H2 + O2 --------> 2H2O What are the reactants?
—>
2H2O
2H2+O2
How many total atoms are in the compound C2H8O ?
11
2
8
1
The state of matter in which a substance has a definite volume but no definite shape.
Gas
Liquid
Solid
Matter
How many carbon atoms are in 2Na₂CO₃
1
2
3
5
How many TOTAL atoms are in this compound?
H2C3O4N5
5
14
15
19
The state of matter in which a substance does not have a definite shape or volume.
Element
Compound
Gas
Liquid
What part of an atom is NEGATIVELY charged?
Protons
Neutrons
Electrons
Atoms
How many Oxygen (O) atoms are in Al₂(SO₄)₃
4
12
7
24
The state of matter in which a substance has a definite shape and definite volume.
Solid
Gas
Atom
Liquid
How many atoms of Carbon are in the compound C2H8O ?
8
2
1
11
Matter that is made of only one kind of atom.
Compound
Volume
Element
Atom
A change in which the form or shape of a substance changes but the chemical makeup of the substance remains the same.
Chemical change
Reaction
Physical change
Solution
How many atoms?
H3PO4
8
3
7
5
The process in which new substances are formed during a chemical change.
Reaction
Solution
Matter
Volume
Which part of an atom has no charge?
Protons
Neutrons
Electrons
Atoms
How many elements?
H3PO4
8
3
7
5
How many atoms are there TOTAL in:
H2SO4
6
5
7
3
