WorksheetsU7_Physical_Science_Study_Guide
Total questions: 13
Worksheet time: 5mins
Which of these are examples of physical reactions?
Candle Burning
Metal Rusting
Ice Melting
Paper Tearing
Which of these statements is true?
A Cation is a negative ion
The compounds in the first half of a C. equation are called reactants
Changes in heat are C. Reactions
All elements are solid at room temp.
A Cation is always positive, and an Anion is always negative.
True
False
Which part of an atom is used in a covalent bond?
The Garfield protons in the very middle of the nucleus
The Nunt electrons in the lowest shell
The whole nucleus
The Valence electrons in the outermost shell
The ionic bond and covalent bond are different how?
Ionic bonds transfer electrons and create a new shared shell
Covalent bonds transfer electrons permanently to the other atom
Ionic bonds transfer electrons permanently to the other atom
Covalent bonds transfer electrons and create a new shared shell
What can you change when balancing a chemical equation
The Subsricpts
The Coefficients
The Elements/Compounds
Nothing, all chemical equations are balanced
Balance the equation
CO2 + H2O → C6H12O6 + O2
Use parenthisis for subsricts: 2H2O is 2H(2)O, Use = for → , and don't use spaces
(a)
Which set of things show a chemical reaction?
Color, Size, Smell, Matter, Heat
Color, Makes gas, Smell, Makes solid, Temp change
Size, Smell, Matter, Density, Makes liquid
Work it, Make it, Do it, Makes us
What is a Period?
What is a Group?
a group is rows
a period is columns
a group is columns
a period is rows
Who is the best Science teacher?
Ms. Morgan
Ms Morgan
Ms Morgan
Ms Morgan
what is the octet rule?
the rule that makes all covalent bonds have 8 electrons in the nuclei
the rule that makes all covalent bonds have 8 protons in the
valence
the rule that makes all covalent bonds have 8 electrons in the
valence
the rule that makes all covalent bonds have 8 Protons in the
nuclei
Which set is all 5 reaction types?
synthesis, decomposition, single replacement, double replacement, combustion
synthesis, decomposition, single replacement, double replacement,
triple replacement
photosynthesis, decomposition, single replacement, double replacement, combustion
synthesis, decomposition, double replacement, combustion,
Enlargen
which is an exothermic reaction?
a reaction that consumes energy (heat); makes itself hotter
a reaction that produces energy (heat); makes its surrondings hotter
