How many atoms are there in 7 molecules of H3PO4?

5. Which contains more nitrogen: 60g of urea, (NH2) 2CO, or 100g of ammonium sulphate, (NH4) 2SO4

Which will ensure laboratory safety during the experiment? Check all that apply. 1. Using beaker tongs to handle the hot beaker 2. Reading the thermometer accurately 3. Checking the beaker for chips prior to heating on the hot plate 4.

How many grams of nh3 can be produced from 3.72 mol of n2 and excess h2.

A sample of helium has a volume of 150.0 L at STP. How many moles of helium are in the container?

When an atom becomes an ion does its mass number change?

This is not lost in a chemical Reaction (4 letter word second letter is A)

Which type of soil holds the least water

Eq-43 which type of fire extinguisher should be onboard a vessel with a permanently installed fuel tank

5. Identify a suitable method that would be used to separate mixture of the follow [b]Water and ethanol c]Table salt dissolved in water d] iodine and potassium Pul the table below

How much energy is needed to convert 57.3 grams of ice at 0.00°c to water at 75.0°c? specific heat (ice) = 2.10 j/g°c specific heat (water) = 4.18 j/g°c heat of fusion = 333 j/g heat of vaporization = 2258 j/g?