Which of these is NOT a way to tell that a chemical reaction is happening?
What makes a reaction exothermic?
What is the big number that you are allowed to change in a chemical equation called?
Balance the following chemical equation.
Balance the following chemical equation.
Which of these is NOT a ‘Base’ metric unit?
Compared to the base unit, what does the prefix ‘kilo-‘ represent?
One one-thousandth (1/1000 or 0.001) base units is represented by which prefix?
Show your work to convert the following measurement.
218 g = __________________ kg
Show your work to convert the following measurement.
75 mL = __________________ L
Show your work to convert the following measurement.
7.77 km = _________________ m
Show your work to convert the following measurement.
2.77 m = __________________ cm
Which of the following best describes density?
What is the formula for density?
Liquid oxygen has a volume of 14mL and a mass of 7g. What is the density of liquid oxygen?
The first law of motion states that an object at rest or in motion will remain at rest or in motion...
The third law of motion states that for every force exerted on an object, there will be an equal and opposite force. Describe what this means in your own words and provide two examples to help explain your point.
What is the main difference between speed and velocity?
How can you distinguish between an ionic and covalent bond?
What are valence electrons?
Which state of matter takes the shape of its container and has NO definite volume?
Which term describes changing from gas to liquid?
What is a physical property?
What type of charge does an electron have?
How many protons does Boron have?
Show your work to calculate how many neutrons Calcium has.
How many electrons can fit on the 3rd shell of an atom?