is the process in which atoms are rearranged to form a new substance.
100
What is a solution?
is a solution is mixture in which two or more substances are mixed and cannot be separated.
200
What is the difference between Mass and Weight?
Weight changes depending on the circumstances, while mass remains always the same.
200
What is density
Measure of the amount of mass in a given amount of volume.
200
What is an atom?
an atom is the smallest particle in which a element can be divided and still be the same element.
200
How are chemical reactions modeled?
a chemical formula is used to model a chemical reaction, it uses chemical symbols.
200
a solute is a liquid, gas, or a solid.This is the substance that is added into the solvent.
s solvent is can also be a liquid, gas or a solid, it is were the solute is dissolved.
What are two parts of a solution, and what are they?
300
What is the amount of space that an object takes place?
volume
300
Mechanical energy, sound energy, electromagnetic energy, electrical energy, thermal energy, chemical energy, and nuclear energy. ?
What forms can energy take?
300
What is the theory of John Dalton?
all matter is made up of atoms.
300
What is a chemical equation?
it is a chemical formula joined together in an equation.
300
What are the four types of concentrations, and what are each?
-dilute: has very little amount of solute in the solvent.
-a concentrated solution has a high amount of solute in the solvent.
-a saturated solution has the highest amount of solute in the solvent.
-a supersaturated solution has more solute than the solvent can have.
400
What is the formula of volume?
-length x width x height
400
what is an energy transformer?
is a thing that takes place when energy changes form.
400
What is the current atomic theory?
in the current atomic theory, electrons do not move in circular paths around the nucleus, electrons move with in an area around the nucleus called the electron cloud.
400
What is the law of conservation of mass?
the law says that mass can't be created of distorted.
400
What does acids and bases do in water?
-acids increases hydronium ions present in water
-bases increases hydroxide ions present in water
500
What is density and what is its formula?
Density is a measure of the amount of mass can take up different amounts of space.
-Formula: mass/volume
500
What are chemical properties of matter?
reactivity and flammability
500
What are the parts of an atom, what are their charges, and their location in an atom?
-an electron is negatively charged, it is located in the electron cloud.
-a proton has a positive charge and it is located in the nucleus.
-a neutron does not have a charge and it is located in the nucleus
500
define endothermic and exothermic reactions.
endothermic reactions is when energy is absorbed, and exothermic is when energy is released.
500
What is the difference between strong acids and bases and weak acids and bases?
strong acids and bases break a part completely, while weak acids and bases remain mostly intact.