Chemistry 1
What are the elements in Group 18 called ?
Noble Gases
A dissolved substance is called ?
Solute
What is the acid and base theory given by Bronsted ?
Acids are proton donors
bases are proton acceptors
What type of compound is glucose
covalent
What is Avogadro's Number ?
number of representative particles in a mole, 6.02 X 10^23
What is Proton number similar to?
atomic number
The ability of a solute to be dissolved in a particular substance is called ?
Solubility
What did J.J Thompson do ?
discovered electrons
What does a graduated cylinder do ?
measure volume
A chemical reaction where two elements in different compounds trade places is what ?
Double Replacement
Type of bonding in calcium oxide
ionic bonds
Calculate CH4 volume at stp
CH4 + 2O2 ---> CO2 +2 H2O
by 0.5 moles of CH4
11.2L
WHAT IS Miss Howards FAVORITE COLOR
Yellow
Products of CaCO3 and NaCl
CaCl + NaNO3
What is percent yield ?
the ratio of the actual yield to the theoretical yield, multiplied by 100
Products formed from Mg(OH)2 + NaCl
MgCl2
NaOH
Number of molecukles in 32 g of methane CH4
12.04*1023
What type of compounds makes either an H+ or H3O
Acids
Used to measure mass
triple beam balance or scale
What is a limiting reactant ?
the substance that is consumed completely - controls the quantity of product that can form in a chemical reaction. Can be determined by calculating the mass of a single product formed from each reactant.
trend in atomic radii character across the period and down the group (similar to metallic properties)
Across Period: AI character decreases
Down Group: AI character increases
When looking at phase diagrams, the horizontal lines indicate what?
phase change
H2(g) + Na2O(s) -> H2O(l) + 2Na(s)
What will the Keq be?
1/[H2]
elements that can exist with multiple charges
Transition elements
What is combustion ?
Burning. Oxygen gas is one of the reactants and water is one of the products.