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]

Select the group that always forms the 1+ ion.  [ans1]

What is the mass, in grams, of 6.8×1024 atoms of He?[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

Which physical state is characterized as having a definite volume and a definite shape?

Convert 0.4675 m to cm.[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 256.2 dg and a volume of 9.21 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

The formula M1V1 = M2V2 is known as _________.

A 1.60 mol sample of gas occupies 17.4 L at 98.2°C. What is the pressure, in atm, of the gas?[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

Which group of elements has a valence electron configuration of ns2np1 (where n = the principal quantum number) when neutrally charged?