NEED ASAP!! Which statement describes a chemical property of a mineral?

A. The mineral forms gas bubbles when a sample is stored in water.
B. The mineral's surface is easily scratched by other materials.
C. The mineral's color can be white, pink, or yellow.
D. The mineral's luster is dull, even if you polish it.

The covalent compound acetylene, which is the fuel of the oxyacetylene torch used by welders, has the molecular formula c2h2. the covalent compound benzene, a commercial solvent, has the molecular formula c6h6 each of these covalent compounds contains carbon and hydrogen atoms in a one-to-one ratio. would it be correct to write the chemical formulas of each as ch? explain.

Identify a specific example for each type of technology

Ammonium perchlorate nh4clo4 is the solid rocket fuel used by the u. s. space shuttle. it reacts with itself to produce nitrogen gas n2 , chlorine gas cl2 , oxygen gas o2 , water h2o , and a great deal of energy. what mass of nitrogen gas is produced by the reaction of 2.1g of ammonium perchlorate?