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WorksheetsScience Review for Midterm
Total questions: 10
Worksheet time: 5mins
What determines an atoms reactivity?
Nucleus
Periodic Table
Valence Electrons
Protons
What are periods and where are they located on the periodic table?
Determine the amount of electron shells, vertical columns
Determine the amount of protons, horizontal rows
Determine the number of V. E, vertical columns
Determine the amount of electron shells, horizontal rows
Metals are ___________
malleable, ductile, lustrous, good conductors
dull, malleable, bad conductors
brittle, good conductors, lustrous
a mix of both metals and nonmetals
A subscript is _______. A coefficient is________.
the number that tells you how many protons there are in an element, a chemical formula
They are both the same thing
the number behind a particular atom, the number placed in front of a chemical formula
the chemical symbol of an element, a molecule
Which of these fall under the most reactive category? Use the image above.
Ar (Argon)
Noble Gases (Group 8)
Alkali Metals (Group 1)
Halogens (Group 7)
Mg (Magnesium)
What are the signs of a physical change?
State change
Color change
Change in temperature
Shape change
Production of a gas
What does this image exemplify?
Chemical Equation
Molecules
Compounds
Atoms
The boy was walking to school at 4 mph East. This is an example of...
Speed
Velocity
Acceleration
All of the above
Tom was walking from school to his house at a constant speed. He then saw his friend and started to run towards him, never stopping. Which graph best represents this scenario?
What is Newtons 2nd law of motion?
An object at rest will stay at rest, and an object in motion will stay in motion unless acted upon by an unbalanced force.
An objects acceleration depends on the mass of the object, and the force you use to move it.
For every action, there is an equal but oppostie reaction.
An objects tendency to resist a change in motion.
