How many protons z and how many neutrons n are there in a nucleus of the most common isotope of rubidium, 8537rb?

Using complete sentences, explain how to predict the products and balance the reaction between sulfuric acid and potassium hydroxide.

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.

Which position represents spring in the southern hemisphere? a) b) c) d)