Unit 7 lesson 2 chemistry A final

For questions 22 - 24, write an equation for the reaction of hydrogen chloride and sodium sulfide to produce hydrogen sulfide with sodium chloride. 22. Show the formulas of the reactants. 23. Show the formulas of the products. 24.

Which family correctly represent the elements

In a laboratory experiment, John uses mesh to seperate soil particles from water. Which technique of seperation is he using?

Which of the following is an example of an attempt to improve an environmental problem caused by chemicals

What happens when iron and oxygen combine to form rust

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