Which chemical equation describes the balanced reaction synthesizing copper and oxygen into copper oxide?

A. Cu + O2 → CuO

B. 2Cu + O2 → 2CuO

C. Cu + H2O → CuO + H2

D. 2Cu + 2H2O → 2CuO + 2H2

Why is cell division important for both unicellular and multicellular organisms?

Which example shows complete dominance? 1) 2) - parents are both homozygous dominant - one parents is red the other is white - offspring are all heterozygous - offspring have two different - offspring are all red with white spots alleles - offspring

Octane (c8h18) reacts with oxygen (o2) to form carbon dioxide (co2) and water (h2o). when the equation below is balanced, the coefficient of octane is: c8h18 + o2 → co2 + h2o

Describe the characteristic of chemical structure found at the core of each steroid hormone

Why does a mechanical wave require a medium for transmission?

A common stain remover is sold in concentrated form as 3M sodium hypochlorite (NaOCl). You need to create 400 milliliters of a 0.5M solution of sodium hypochlorite to fill a spray bottle. What volume of 3M sodium hypochlorite is needed? 15.0 mL 66.

A chemical reaction that takes in heat is called: exothermic endothermic a phase change

Which of the following lines (of latitude or longitude) would represent by 180 longitude? South Pole Equator Prime meridian North Pole International date line

63Ni decays by a first-order process via the emission of a beta particle. The 63Ni isotope has a half-life of 100. years. How long will it take for 65% of the nickel to undergo decay?

Based on the standard free energies of formation, which of the following reactions represent a feasible way to synthesize the product? A. 2C (s) + H2 (g) →C2H2 (g); ΔG∘f=209.2 kJ/molB. N2 (g) + 3H2 (g) →2NH3 (g); ΔG∘f=-33.30 kJ/molC.