Which can cause auroras and disrupt satellite tranmission

A star is born whenever nebula expands ... True or false? A star system has at least three stars ... True or false?

A mixture initially contains A, B, and C in the following concentrations: [A] = 0.350 M, [B] = 0.900 M, and [C] = 0.350 M. The following reaction occurs and equilibrium is established: A+2B⇌C At equilibrium, [A] = 0.150 M and [C] = 0.550 M.

When a sample of aqueous hydrochloric acid was neutralized with aqueous sodium hydroxide in a calorimeter, the temperature of 100.0 g of water surrounding the reaction increased from 25.0°c to 31.5°c. if the specific heat of water is 1.

Which one of these is not an example of intracellular communication? A. Control of cell division B. Reaction of pheromones C. Molecule in a cell changes function of cell D. Molecular movement within a cell

You are walking in a clear-cut section of forest a few days after a heavy rainstorm. A nearby stream is very muddy and has many dead fish. What might have happened?

A piece of iron can change in different ways. How is iron bending different from iron rusting?

Which organism would least likely be selectively bred A) Dandelions B) Nantes Carrots C) Belgian Blue Cattle D) Hypoallergenic Cats

You are given a clear solution of KNO3. Using 3-4 sentences explain how you would determine if the solution is unsaturated, saturated, or supersaturated

Which element combination (s) would result in electrons being shared? [] sodium (Na) and oxygen (O) [] carbon (C) and fluorine (F) [] oxygen (O) and hydrogen (H) [] aluminum (Al) and chlorine (Cl)

If you start with 4 moles of iron and 3 moles of oxygen to produce iron oxide, what is the limiting reagent? (You will need to balance the equation first.) Fe + O2 - > Fe2O3