What is the concentration of a solution, in parts per million, if 0.02 gram of na3po4 is dissolved in 1000 grams of water

What type of graph is best for displaying percentages or parts of a whole

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.

Neils bohr believed that electrons orbited the nucleus in different energy levels, based on strong support from