Ammonia (nh3 (g), hf = - 46.19 kj/mol) reacts with hydrogen chloride (hcl (g), hf = - 92.30 kj/mol) to form ammonium chloride (nh4cl (s), hf = - 314.4 kj/mol) according to this equation:

In a laboratory experiment, john uses a message to seperate soil particles from water. Which technique separation which technique of separation is he using

How many grams are equivalent to 1.80x10-4 tons?

when scientists are ready to publish the results of their experimentation why is it important for them to include description of the procedures they used?

Which one of the following is a vestigial structure? 1. Heart 2. Appendix 3. Right leg 4. liver

4. Which of the following factors increase the rate of diffusion of a substance? (Check all that apply.) ! a. decreased temperature b. decreased viscosity of the solvent c. increased molecular weight of the substance d.

When does a spring tide take place? At the beginning of spring Only during the spring season Only after spring is over At any time

The highest cloud are known as

What is the mass of 4.85 X 10^22 atoms of iron (Fe) ?

If element x has 95 protons how many electrons does it have

Which of the following when dissolved in deionized water would make a good conducting solution? a) methanolb) sugarc) baking soda