In which way does a na1 + ion differ from a neutral na atom?

What is the molar mass of h3po4

All the food chains in an ecosystem that are connected together form a?

2NH4Cl (s) + Ba (OH) 2⋅8H2O (s) →2NH3 (aq) + BaCl2 (aq) + 10H2O (l) The ΔH for this reaction is 54.8 kJ. How much energy would be absorbed if 24.7 g of NH4Cl reacts?

Explain the change in mass that occurs when the following substances are separately heated in open crucibles (a) Copper metal (b) Copper (II) nitrate

How many atoms are in 151 g of calcium?

The data below were collected for the following reaction at 500 ∘C: CH3CN (g) →CH3NC (g) Time (h) [CH3CN] (M) 0.0 1.000 5.0 0.794 10.0 0.631 15.0 0.501 20.0 0.398 25.0 0.

How do i convert 3.00 moles H2 to molecules?

How can you use the chemical formulas for sucrose (C6H, 20,) and rust (Fe, O,) to classity them ionic or molecular compounds?

What is true of energy as is passes through an ecosystem? a. All of the energy in an organism is used by the animal that eats it. b. Any stored energy in an organism is used by the animal that eats it. c.

Which can associate a suspect and the firing of a gun? (its not b) A) markings on the gun's exterior B) markings on the casing C) markings on the bullet D) powder residues