Metric System/Imperial System
Does the US use the metric system or imperial system?
imperial system
True or false: a solid has no definite shape and no definite volume
false, it has definite shape and definite volume
How do you change matter from a solid to a liquid?
you need to add thermal energy
how many rows are on the periodic table?
seven
What are the substances undergoing the reaction called?
reactants
What is the metric system based on?
meter, gram, and liter
Does liquid have a definite shape?
no, liquids take shape of the container they’re in
What is a common example of sublimation?
dry ice
how many families are on the periodic table?
what side of the equation are the reactants placed on?
the left side
true or False: a meter measures mass
false
Are particles close together in the gas state?
no, particles are very far apart
What happens when you remove thermal energy?
particles move slower, particles get closer together, and particles move slower
Where is the atomic mass located on an element?
Underneath the atomic symbol
what does the arrow separate?
the reactants and products
What is the acronym for the metric system?
King Henry died unexpectedly drinking chocolate milk (KHDUDCM)
What is viscosity?
resistance of a liquid to change
What is a freezing point?
the temperature at which matter changes from the liquid state to the solid state
True or false: the periodic table is organized by decreasing atomic number
false, elements are arranged left to right and top to bottom in order of increasing atomic number. This order generally goes with increasing atomic mass
What’s the difference between an element and a compound?
an element is a pure substance that cannot be broken down (the “simplest form of matter”) and a compound is two or more elements chemically combined
To change 1 kilometer to meters, what do you do?
move the decimal point over three times to make it 1,000 meters
What are the two types of solids and what is the difference between the two?
crystalline and amorphous. In crystalline the particles are organized in in amorphous they have a random organization
What is deposition?
the change of state of a gas to a solid without going through the liquid state
how many elements are on the periodic table?
118
Where are the coefficients and subscripts placed?
a coefficient is placed immediately to the left of each formula and a subscript is the small number directly to the right of the number.