The study of matter and the changes it undergoes
What is chemistry?
Properties that can be observed without changing the chemical composition of the sample of matter
What are physical properties?
How close multiple measurements are to the accepted value is known as
What is precision?
Salt water
What is a homogeneous mixture?
Alkaline earth metal that has 10 valence electrons
What is calcium?
What is a hypothesis?
7.054 x 105
How many significant figures
What is 4 significant figures?
What is matter?
Unlike compounds that are bonded together, mixtures are ________ together.
What is blended?
How close a measurement is to the true or accepted value
What is accuracy?
Carbon dioxide
What is a compound?
A nonmetal element with the valence electron of 1
What is hydrogen?
The amount of matter in an object vs the force of gravity pushing down on an object
What is mass and weight?
0.0056020 in long form is what in scientific notation
What is 5.6020 x 10-3?
Solid, liquid, and gas are the three ____ of matter
What is states?
Chemical changes are also known as this
What are chemical reactions?
Weighing a 50g mass. The results are
50.00g
50.00g
50.00g
What is accurate and precise?
Tossed salad
What is a heterogeneous mixture?
A nonmetal that has a valence electron of 5
What is nitrogen?
These measurements are descriptive and non-numeric
What is qualitative?
9.50 x 46
What is 440?
Elements and compounds are classified as this
What are pure substances?
Attracted to the South Pole of a magnet
What is a physical property?
Taking data for weighing a 50g mass
32.18g
32.18g
32.18g
What is not accurate, but precise?
Milk
What is a homogeneous mixture?
I am in the first column, I am an alkali metal with the valence electrons of 9
What is potassium?
Have an infinite number of significant figures
What are exact numbers?
52.06 + 37.6
What is 89.7?
The components of this mixture can be easily seen with the naked eye and are distinguishable
What is heterogeneous?
Molding clay
What is a physical property?
Taking data for weighing a 50g mass
50.00g
49.99g
50.00g
What is accurate and precise?
Zinc
What is an element?
I am a halogen with 7 valence electrons
What is Fluorine?
What is a law?
(8.123 x 10-6) / (1.62 x 10-3)
What is 0.00501?