What are the two types of balances used to measure mass?
Triple Beam Balance or Double Pan Balance
100
What are the three states of matter?
Solid, liquid, and gas
100
What is an atom?
An atom is the smallest unit of matter that makes up all things in the universe.
100
Is this statement a physical or chemical property?
Physical, you're just describing the color of the banana.The banana is yellow.
100
How many known elements are there?
118
200
What is the S.I. unit of weight?
Newtons
200
What is the volume and shape of a gas? Definite or not definite?
The volume and shape of a gas is not definite.
200
What does "atomos" mean?
Not able to be divided
200
What physical property is described as "being made into a wire"?
Ductility
200
What does the atomic number tell you?
The number of protons and electrons in a neutrally charged atom of an element.
300
What is the volume of a cube, all with side lengths of 6 in.?
216 inches cubed
300
How can a substance change states of matter?
Heating or cooling
300
What is an electron?
An electron is a negatively charged particles that moves around the nucleus of an atom. They are vital to the bonding of other atoms.
300
The ice in your cooler is melting. Is this a physical or chemical change?
Physical change, the ice is simply changing states.
300
How do you find the number of neutrons found in an atom of a specific element?
To find the number of neutrons found in an atom, you must subtract the number of protons (atomic number) from the atomic mass to get a rounded estimate of neutrons.
400
What is the meniscus?
The meniscus is the curved shaped that is produced by a liquid to capillary action on the side of the container, as well has cohesion within the particles themselves.
400
What is the state change of a substance that turns from a liquid to a gas?
Evaporation
400
What is the difference between an electron cloud and electron shells?
Electrons clouds are part of the current atomic theory. Electrons are found not to follow perfect paths or shells, but rather stay in a specific energy level.
400
What is the rule for determining if something is a physical change or chemical change?
Can I get that substance back? Does it still contain the same properties?
400
When you mix salt with water, which is the solvent; the solute?
Water is the solvent; the salt is the solute
500
What is the density of a wooden ball whose volume is 8 cubic centimeters and whose mass is 62 grams?
7.75 g/cc
500
How does a substance change from a solid to a liquid?
Melting
500
What is John Dalton's "billiard ball model"?
John Dalton's "billiard ball model" was theory that an atom is like a ball, and not made up of any subatomic particles.
500
Is orange juice more likely to be considered an acid or a base? How do you know?
An acid. You could test the pH level.
500
What is the difference between a molecule and a compound?
A molecule is the chemical combination of two or more atoms (could be the same atoms), and a compound is the chemical combination between two or more elements (different atoms).