Matter
What are the states of Matter?
solid, liquid, and gas
What does x represent for Barium?
Ba (chemical symbol)
What is an acid?
Molecule that produces H+1 ions when it is dissolved in H2O
is it milli or meter if it's m or _m?
meter
What if the product is greater than 10? (Sci Not Multiplication)
1) move DPo to left 1 DPl
2) add 1 to exponent of 10
What are the two characteristics of matter?
1. has matter
2. occupies space
What does z represent for Calcium?
20 (atomic number)
What is an cation and anion?
Cation: always will be H+1 in a acid
Anion: Always will be whatever is left in an acid after H+1
How do you know what direction to go?
look at first letter in each measurement
(4.72 * 105 cm)(2.02 * 106 cm)
9.53 * 1011 cm2
Is gas a indefinite or definite volume?
Indefinite
What does A represent for Carbon?
12.01 (Mass number)
What if an anion does not have oxygen?
Add Hydro + -ic acid
7.23 cg --> dag
0.00723 dag
what do you need to subtract? (Division with Sci Not)
Exponents
What is the difference between physical and chemical properties?
physical: Substance that can change w/ out substance becoming a different substance
Chemical: Substance or ability to change to a different substance
What is the Isotope notation for silicon?
2814 Si
HNO3
Nitric Acid
692 ks --> ms
692,000,000 ms
(9.45 * 108 cs2)/(3.28 * 105 cs)
2.88 * 103 cs
What is the difference between physical and chemical changes?
physical: does NOT affect a substance's composition
Chemical: DOES affect a substance's composition
What is the isotope notation for Uranium?
23892U
HCN
Hydrocyanic Acid
512 das --> ms
5,120,000 ms
(6.39 * 10-3 hs) - (1.825 * 10-4 hs)
6.21 * 10-3 hs