Which element in period 2 has less mass

How much stronger is methane than carbon dioxide as a greenhouse gas? a) 10 b) 50 c) 20 d) 30 by the way i answered D already and it was wrong

What is the Molar mass of Fe2 (SO4) 3

A student takes a sample of KOH solution and dilutes it with 100.00 mL of water. The student determines that the diluted solution is 0.046 M KOH, but has forgotten to record the volume of the original sample.

Is pepperoni pizza an element?

The lower rocks in the Muav limestone are 505 million years old. The upper rocks in the Redwall limestone are 340 million years old. What could explain the gap?

How many electrons does zinc lend?

Solid iron has a density of 7.9 g/cm3. Liquid mercury has a density of 13.6 g/cm3. will iron float or sink in mercury explain

Convert 6.42 moles of H2O to molecules

An aspirin tablet contains 81.0 mg of aspirin, which has the molecular formula, c9h8o4.

What size container do you need to hold 0.0459 mol of N2 gas at stp