Calcium sulfide forms when calcium loses 2 valence electrons to sulfur. What type of a bond is formed?

Select one of the options below as your answer:

A) covalent

B) ionic

Explain why space junk is a hazard to an astronats or spacecraft

How many moles of HNO3 are contained in 500. mL of a 6.00 M solution?

A plant converts sunlight into stored energy is a physical or chemical change

The electronegativity difference between two atoms was 2.3. What type of bond would most likely form between them. Non Polar Ionic (my Guess) Metallic Polar

How much energy is evolved during the formation of 197 g of fe, according to the reaction below? fe2o3 (s) + al (s) → al2o3 (s) + fe (s) δh°rxn = - 852 kj?

The dissolution of barium hydroxide in water is an exothermic process. Which of the following statements is correct? A) The enthalpy of solid barium hydroxide plus pure water is less than that of the solution, at the same temperature.

What's the Compound for CO?

How to measure a bag of flour

If the pH of a wine is too high, say, 4.0 or above, the wine becomes unstable and has a flat taste. (a) A certain California red wine has a pH of 3.5, and a certain Italian white wine has a pH of 2.9.

Sodium hydroxide reacts with carbon dioxide as follows: which is the limiting reactant when 1.85 mol naoh and 1.