ZnS + HCl is what type of reaction single replacement, double replacement, synthese, combustion, decomposition, acid-base, or acid carbonate reaction

What is bias in an experiment?

Describe how one can separate a mixture of sodium chloride, sand, iron fillings and iodine crystals

Once it is in motion, what does an object like a soccer ball have a natural tendency to do?

What are the properties of elements related to

Calculate the number of moles in 41.5 g of MgCl2

The standard metric units of density are: kg/N g/cm3 kg/cm3 g/L

Water obtained from natural resources does not show neutral pH. What is the reason behind this? The neutral nature of water changes due to its ability to dissociate into H + and OH - ions.

What Element is H? a. Calcium b. copper c. Tin d. aluminum

Weight measures A. How dense an object is. B. How large an object is. C. The amount of mass in an object. D. The effect of gravity on an object.

Valencies of all the elements in the periodic table