Matter
Anything that has mass and takes up space
What is Matter?
The milliliter is a unit used to measure ____________.
Volume
The smallest unit of matter that retains the properties of that element
What is an atom?
How many donuts are in a mole of donuts?
6.02 x1023
The measure of a wave from crest to crest
what is wavelength?
A(n) __________________ only has one type of atom.
The basic unit of length in the metric system of measurement
What is the meter?
The nucleus contains most of the ______________ of the atom while the electron cloud contains most of to ____________.
mass, volume
What is the mass of one mole of Carbon?
12.01 g
Together, all forms of electromagnetic radiation arranged in order of increasing wavelength form the __________________
What is the electromagnetic spectrum?
The law of _______________ states that mass is neither created nor destroyed during chemical reactions or physical changes.
Law of Conservation of Mass
How many significant figures is in the number 30.0?
What is 3?
We can identify an atom by how many __________ it has.
what is protons
What is the mass of one mole of calcium carbonate (CaCO3)?
100.09 g
Einstein named a particle of electromagnetic radiation the ______________.
Give an example of a physical property of copper.
Color, shiny, conducts electricity, Etc.
Round the number 34.399 to 4 significant figures.
34.40
A cation is an atom that has gained/lost ... protons/electrons.
lost...electrons
How many moles are in 76 L of nitrogen gas?
3.4 moles
The color of light with the most energy
what is violet?
List 4 things that can indicate that a chemical change has taken place.
Production of a new gas or solid (bubbles)
Production of Heat or Light
Permanent color change
New Odor
Use correct significant figures and units. A student measures 14.75 mL of water in a graduated cylinder. An object with a mass of 7.1 g is placed in the cylinder and the final volume of the water is 28.95 mL. What is the density of the object?
0.50 g/mL
The average atomic mass of an element that is 25% x-27 and 75% x-29 is _______.
28.5
How many atoms are in 57.8 g of Phosphorus?
1.12 x 1024 atoms
What is the wavelength in meters of electromagnetic radiation with a frequency of 1.50 x 1013 Hz?
2.0 x 10-5 m