Measurement
How many grams are in a kilogram?
1000 g = 1 kg
What are the charges of a proton, a neutron, and an electron?
Proton: +1
Neutron: 0
Electron: -1
All elements in Group 2 have a charge of what?
+2
What is the classification of Rhodium (Rh)? You may use a periodic table for this question.
Metal
What is Avogadro's number?
6.022 × 10²³
What prefix means 10⁻⁹?
nano-
What particle(s) are found inside the nucleus? What particle(s) are found outside the nucleus?
Inside: Protons and Neutrons
Outside: Electrons
Which group on the periodic table holds Alkali metals?
Group 1
What is the definition of a Covalent Compound? What is the definition of an Ionic Compound?
Covalent: Contains only nonmetals
Ionic: Contains metals & nonmetals
How many moles of hydrogen are in two moles of sugar? The chemical formula for sugar is C₁₂H₂₂O₁₁.
44 Moles
Standard Paper would sink because it has a greater density than water.
Two isotopes of hypothetical element X exist with abundances of 23.7% ³²X and 76.3% ³³X. What is the approximate atomic mass of X (in atomic units, amu)?
32.763 amu
Is H₂O an element or a compound?
Compound
What is the name of P₄S₁₀?
Tetraphosphorus Decasulfide
How many carbon atoms are in one mole of galactose? The chemical formula for galactose is C₆H₁₂O₆.
3.6132 × 10²⁴ Atoms
What is 37°C in kelvins?
310.15 K
How many protons (p⁺), neutrons (n⁰), and electrons (e⁻) are present in ⁶⁵Nb⁷⁻ ? The atomic number of Nb is 41.
41 p⁺, 24 n⁰, 48 e⁻
What element is represented by the symbol Co?
Cobalt
What is the name of V₃(PO₄)₅? You may use a periodic table for this question.
Vanadium (V) Phosphate
How many fluoride ions (F⁻) are there in 40.0 g of calcium fluoride (CaF₂)? The molar mass of CaF₂ is 78.08 g/mol.
6.17 × 10²³ Ions
Convert 7,267,834,798 into scientific notation.
7.267834798 × 10⁹
The average atomic mass of two hypothetical isotopes is 56.406 amu. Given that ⁵⁴X composes 19.8% of element X, what is the atomic mass of the other unknown isotope?
57 amu
What is the charge of the anion in Fe₂O₃?
-2
What is the chemical formula for magnesium hydroxide? You may use a periodic table for this question.
Mg(OH)₂
What mass of hydrogen is present in 3.5 × 10²¹ molecules of glucose (C₆H₁₂O₆)?
7.0 × 10⁻² g