What are the elements in group 3 to 12 called?

1. Find the percent composition of a compound that contains 1.10 g calcium, 0.888 g sulfur. and 1.76 grams of oxygen in a 3.74 a sample of the compound

Calculate the volume of a 1.850 mol gas sample in a closed container that is at a temperature of 22.25oC and a pressure of 225.4 kPa

How many moles of Fe are needed to make 4 moles of FeCl2

What is the next atomic orbital in the following series? 1s, 2s, 2p, 3s, 3p, ___ A. 3d B. 2d C. 4s D. 2f

Sodium bromate chemical formula

A pure gold ring with a volume of 1.79 cm^3 is initially at 17.4 ∘C. When it is put on, it warms to 28.5 ∘C. How much heat did the ring absorb? (density of gold = 19.3 g/cm^3)

A compound has the molecular formula C6H12O6. Which class of organic compounds does it belong to?

An elephant eats about 500 pounds of grass and leaves every day. there are 2 african elephants and 3 asian elephants living in the city zoo.

Which specific gas is most abundant in earth's atmosphere?

What is an isomer? How many possible isomers of hexane are there? What are the structural differences between these isomers?