Acalorimeter measures the energy in a phase change by measuring a change in which of the following? mass. density temperature pressure

Which of these properties, used alone, would be least useful in identifying most minerals? a. color b. luster c. streak d. density

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.

Why are people not able to scuba dive in the deep part of the ocean