Which number correctly shows 91,000 in scientific notation?

Which of the following is the conjugate acid of H2S?

What is the correct formula for chromium (III) hydroxide?

Which of the following is the conjugate base of H2S?

What type of reaction is occurring below?2 H2O2 → 2 H2O + O2

Which mole ratio is incorrect for the reaction shown below?2 A + 5 B → C + 7 D

Which mole ratio is incorrect for the reaction shown below?3 A + 6 B → 2 C + 4 D

What is the molarity of a solution made by dissolving 3.460 g of K2S in enough water to make 80.00 mL of solution?[response_blankA] NOTE: If an answer needs to be written in scientific notation, use the following format: 1.2×103 should be written as 1.2e3 or 1.2×10^31.2×10-3 should be written as 1.2e-3 or 1.2×10^-3

An object has a mass of 198.6 dg and a volume of 6.53 mL. What is its density in g/mL?[response_blankA]   NOTE: If an answer needs to be written in scientific notation, use the following format: 1.2×103 should be written as 1.2e3 or 1.2×10^31.2×10-3 should be written as 1.2e-3 or 1.2×10^-3

Write the correct name for each.A) HI (aq): [response_blankA]B) Zn3(SO3)2: [response_blankB]C) PF5: [response_blankC]D) Pb(PO4)2: [response_blankD]