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of 92 available terms

5 Matching Questions

1. If a solid cube is dropped into a graduated cylinder and the water level
rises 5 ml, what are the dimensions of the cube?
2. Define mass & name the equipment and units used to measure mass.
3. Why do atoms form chemical bonds?
4. mixture
5. Convert 2 hours, 30 minutes, 15 seconds all to seconds.
1. a If the water level rises 5 ml, then the volume of the object is equal to
the volume of displaced water so the volume of the cube is 5 ml
(or 5 cm3). [1 ml = 1 cm3]
V = L x W x H and V = 5 cm3
5 cm3 = L x W x H {where for a cube all sides equal} (l = w = h)
cube root of 5 cm3 = 1.71 cm3 = L
2. b (2 hrs)(60 min/1 hr)(60 sec/min) = 7,200 seconds
(30 min)(60 sec/min) = 1,800 seconds
9,015 seconds
3. c substance that contains more than one kind of matter
4. d Mass is the amount of matter an object is made up of and is measured
using an electronic balance or triple beam balance in units of grams.
5. e To become chemically stable and
neutral, which means to have a full valence electron shell.

5 Multiple Choice Questions

1. dense center of atom made up of protons and neutrons,
makes up most of atoms mass
2. Discovered the existence of the electron.
Discovered positive & negative charges existed equally in atom. (Plum
pudding model)
3. negatively charged particles found in energy levels around
nucleus.
4. molecules slip over and around each other, has definite volume
but no definite shape (takes shape of it's container)
5. Force that holds the nucleus together and
keeps protons from repelling each other.

5 True/False Questions

1. If the mass of 15 identical marbles in a cup is 32 grams, and the cup's
mass is 2 grams, what is the mass of one marble? Please show your work.
If the water level rises 5 ml, then the volume of the object is equal to
the volume of displaced water so the volume of the cube is 5 ml
(or 5 cm3). [1 ml = 1 cm3]
V = L x W x H and V = 5 cm3
5 cm3 = L x W x H {where for a cube all sides equal} (l = w = h)
cube root of 5 cm3 = 1.71 cm3 = L

2. vaporationMatter changes from gas to solid state (example - frost)

3. Tensile Strengthnegatively charged particles found in energy levels around
nucleus.

4. atomic massequals the number of protons for an atom

5. Group 1Second family from right side of table, known as the
halogens, they are the most reactive of non-metals and have
oxidation number of 1- because they have 7 valence
electrons, and gain one during ionization (when bonding),
to fill their outer energy level and become more stable.