NH3 + __ H2SO4 → __ (NH4) 2SO4

How many atoms of Phosphorus (symbol P) are in 45.67g of P? (Your answer should just be a number. Do not include atoms as the unit. For scientific notation use the "^" symbol before the exponent. For example 2.54 x 10^5)

As you move down group one of the periodic table, what happens to the atomic radii? They increase, because of the higher number of occupied energy levels. They increase, because of the stronger attraction between electrons and the nucleus.

Which equivalence factor set should you use to convert from 4.23 x 10^12 atoms of Ca to grams of Ca? (1 mol Ca/6.02 x 10^23 atoms Ca) (40.08 g Ca/1 mol Ca) (1 mol Ca/4.23 x 10^12 atoms Ca) (40.08 g Ca/1 mol Ca) (4.

Explain the difference between atomic numbers and atomic mass

Unlike bacteria, an animal cell contains

The terms vitrification, oxidation, water smoking, and flashing are all associated with: Select one: Select one: a. spanning openings with bricks or other masonry units. b. cleaning bricks after masons install them. c.

In the reaction Mg+Cl2=MgCl2 what should be the coefficient for Cl2

A 25.0-g sample of barium reacted completely with water. What is the equation for the reaction? How many milliliters of dry H2 evolved from 21C and 748mmHg?

What is the oxidation number of bromine in the HBr molecule?

Which statement about Clinton s impeachment is true? A. Clinton s impeachment was supported by the majority of Americans. B. The impeachment charges were based on fraud found during the Whitewater investigation. C.