Random
What charge is group 1A?
1+
Identify the correct formula for phosphorus pentafluoride and calculate its formula mass (amu)
PF5 → 125.97 amu
How many atoms are in 22.9 mol Hg?
1.38 x 1025 atoms Hg
Hydrosulfuric acid
What is the chemical name of NaF?
sodium fluoride
Is HS- an ion, a covalent compound, or ionic compound?
Ion (polyatomic ion)
Identify the correct formula for nitrous acid and calculate its formula mass (amu)
HNO2 → 47.02 amu
How many atoms are in 3.4 mol Cu?
2.0 x 1024 atoms Cu
What is the chemical formula for Nitric acid?
HNO3 (aq)
What is the name of BBr3?
Boron tribromide
Covalent
What is the molar mass of lead selenide? Include units
286.2 g/mol PbSe
How many moles of sodium atoms are in a pure sodium sample with a mass of 38.1 g?
1.66 mol Na
What is the chemical formula for carbonic acid?
H2CO3 (aq)
What is the chemical formula for iron(III) bromide?
FeBr3
Is NH4Cl a ion, covalent compound or ionic compound?
Ionic
A sample of 156 moles of Ca3(AsO2)2 contains how many moles of oxygen?
624 mol O
How many grams of arsenic are in a pure arsenic sample that contains 0.145 mol?
10.9 g As
What is the name of the acid, HClO4 (aq)?
What is the chemical name for Ni(BrO4)4?
nickel(IV) perbromate
What is the charge of Cr in Chromium(VI) phosphate and what is its chemical formula?
Cr6- --> Cr(PO4)2
4.64 x 103 mol Ba(BrO3)2
How many grams of ammonium hydroxide are in a pure sample that contains 1.61 mol ammonium hydroxide?
What is the chemical formula for hypophophorous acid?
H3PO2 (aq)
What is the formula for mercury(II) bicarbonate?
Hg(HCO3)2