"in a test tube was add a piece of zn and 2 ml of hcl (.1m). this reaction produced zncl2 and hydrogen gas. this reactions is a:
a. combustion
b. synthesis reaction
c. double replacement reaction
d. single replacement reaction"

Ahypothrticalax type of ceramic material is known to have a density of 2.10 g/cm3 and a unit cell of cubic symmetry with a cell edge length of 0.57 nm. the atomic weights of the a and x elements are 28.5and 30.0 g/mol, respectively. on the basis of this information, which of the following crystal structures is (are) possible for this material: sodium chloride, cesium chloride, or zinc blende

What is the mass of each element in a 324.8 sample of co2

Match the name of the following compound:   mgso4  · h2omagnesium sulfate monohydratemagnesium (ii) sulfate monohydratemagnesium (ii) sulfate hydratemagnesium sulfate hydrate