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23/24 Chem A Exam Review

Across
A scientific statement that is accepted as fact
A state of matter that has a definite volume but takes the shape of its container
Made up of 2 or more types of atoms bonded together
The application of scientific knowledge
Made up of one type of atom
A separation technique that uses a difference in boiling points to separate two liquids
A state of matter that takes the shape and volume of its container
A mixture that is not uniformly combined
A state of matter that has both a definite shape and volume
A judgement based on information gathered during an experiment
A measure of the effect of gravity on an object
Data that describes with words
A subatomic particle with no charge
The smallest unit of matter that retains the properties of the matter
An atom with a charge
Gallium melts at 30 C. This is an example of a ________ property
Anything with mass that takes up space
The mass to volume ratio of a substance
Down
A subatomic particle with a positive charge
An atom that has lost electrons and now has a positive charge
Brass and stainless steel are examples of a type of homogeneous mixture called an _______.
An educated guess at what will be observed
Data that uses numerical values
A mixture that has uniform composition
A measure of the amount of matter
A subatomic particle with no mass
The center of an atom where protons and neutrons are
Things that can be seen with the naked eye
Equal to 1/100 of a meter
Made up of two or more atoms or compounds combined together
Atoms with the same number of protons but a different number of neutrons
Oxygen gas is flammable. this is an example of a _________ property
The element with 20 protons
An explanation based on current data from many experiments
An atom that has gained electrons