Density
A wooden block has a mass of 562 g and a volume of 72 cm3. What is the density?
7.805
Define compound(s):
2 or more different elements together.
solvent
What are two ways to calculate volume?
LxWxH and volume displacement method.
List the 4 types of matter:
liquid
solid
gas
plasma
A foam square has a mass of 62 g and a volume of 72 cm3. What is the density?
.861
ph level change
texture change
color change
odor change
taste change
The product of a solute and solvent is called a _____.
solution
Define Matter:
Anything that takes up space and has mass.
Why is pH a valuable property to test when working with compounds?
because they may have the same physical properties but can have different pHś. Example: rubbing alcohol has a pH of 6 and vinegar has 2. Both liquids but different ph levels.
A bottle of water has a volume of 560 mL and a mass of 1250 g. What is the density?
2.232
How many atoms are in this chemical formula: CH3CH2CH2OH
12 atoms
Define miscibility:
two liquids that mix together.
Mass is measured in
grams.
The pH scale goes from:
0-14.
A rectangular block of copper metal weighs 1896 g. The dimensions of the block are 8.4 cm by 5.5 cm by 4.6 cm. From this data, what is the density of copper?
8.921
12 atoms
List 3 solutes that are soluble with water?
1. salt
2. baking soda
3. sugar
Volume is measured in
True or false: Angel is comparing two substances. They are both heavy pieces of metal that are goldish/bronzish in color. He also notices that both samples weigh the same and bubble when acid is poured over them. With all these similarities, Angel can be sure that these two metals are the same.
False.
A block of lead has dimensions of 4.50 cm by 5.20 cm by 6.00 cm. The block weighs 1587 g. From this information, calculate the density of lead.
11.282
5 NaCl (C2H3)2
60 atoms.
Since you can pour sand into a coup, why isn´t it a liquid?
Each particle of sand has a definite shape and volumes. However, when together, they have the same physical property of a liquid. This is because they are so small.
Describe the relationship of matter:
matter, elements, atoms, molecules, compounds, subatomic particles.
Why are elements and compounds essential to life?
They are essential to life because they are needed to survive. EX: oxygen.