Write the chemical formula for:
silicon disulfide
SiS2
This reaction type occurs when two or more reactants combine to form a single product, such as the reaction of hydrogen and oxygen to form water.
What is a synthesis reaction?
This constant represents the number of particles, such as atoms or molecules, in one mole of a substance.
What is Avogadro’s number?
What is the molar mass of hydrochloric acid (HCL)?
36.46 g/mol
This term refers to the simplest whole-number ratio of atoms in a compound
What is the empirical formula?
Write the chemical formula, and designate charges to individual ions:
Sulfurous Acid
H2SO3
H1+
SO32-
Which ion is commonly found in soluble salts of alkali metals, making most of their compounds soluble in water?
What is the sodium ion (Na⁺)?
This term refers to the ratio of the actual yield to the theoretical yield, expressed as a percentage.
What is percent yield?
What is the molar mass of (Mg3Si2H3O8)2?
520.2100 g/mol
The empirical formula of a compound is NH₂. If the molar mass of the compound is 32 g/mol, what is the molecular formula?
What is N₂H₄?
Write the chemical formula, and designate charges to individual ions:
Bromic Acid
HBrO3
H1+
BrO31-
What type of reaction occurs when an acid reacts with a base to produce water and a salt?
What is a neutralization reaction?
When calculating the mass of a product formed from a chemical reaction, the reactant that determines the amount of product is called this
What is the limiting reactant
How many moles in 4.4 grams of Sodium Chloride (NaCl)?
An element exists as two isotopes: one isotope has a mass of 10.0 amu and a percent abundance of 20.0%, and the other has a mass of 11.0 amu with 80.0% abundance. What is the average atomic mass of the element?
What is 10.8 amu?
Write the chemical formula, and designate charges to individual ions:
gallium (III) acetate
Ga(CH3COO)3
Ga3+
CH3CHOO1-
In a single displacement reaction, if zinc (Zn) displaces copper (Cu) from copper(II) sulfate (CuSO₄), what is the balanced chemical equation for this reaction?
What is Zn (s) + CuSO₄ (aq) → Cu (s) + ZnSO₄ (aq)?
How many moles of carbon dioxide (CO₂) are produced when 88.0 grams of propane (C₃H₈) are burned completely in excess oxygen?
What is 6.00 moles of CO₂?
How many Kilograms in 9.01 x 1022 molecules of Sulfate?
about .014 kilograms of SO4
The molar mass of a compound is 180.18 g/mol, and its empirical formula is CH₂O. What is the molecular formula of the compound?
What is C₆H₁₂O₆?
Write the correct chemical formula with correct charges for:
Sulfide vs. Sulfite vs. Sulfate
Nitride vs. Nitrite vs. Nitrate
Ammonia vs. Ammonium
S2-, SO32-, SO4-2
N3-, NO21-, NO31-
NH31-, NH41+
In a double displacement reaction, if sodium sulfate (Na₂SO₄) reacts with barium chloride (BaCl₂), what is the net ionic equation for the reaction?
What is Ba²⁺ (aq) + SO₄²⁻ (aq) → BaSO₄ (s)?
If 5.00 grams of hydrogen gas (H₂) reacts with excess oxygen gas (O₂) to form water (H₂O), how many grams of water are produced?
What is 45.0 grams?
What is the mass in grams of 5 Molecules of ammonium (NH4).
about 1.09 x 1025 grams
A compound is found to have the following percent composition by mass: 40.00% carbon, 6.72% hydrogen, and 53.28% oxygen. What is the empirical formula of the compound?
What is CH₂O?