Hydrogen and helium in the universe were formed by which of these phenomena?

a. Big bang

b. Fusion in small stars

c. Fusion in very large stars

d. Supernova

The charged particles that are not deflected by the magnetosphere become the charged particles stored in the ___ Van Allen radiation belts Aurora Borealis Aurora Australis Earth's magnetic field

How do you express homogeneous reactions in the Keq formula? How is that different than how you express heterogeneous reactions?

To two decimal places, write the molar masses of carbon, neon, iron, and uranium

Which substance reacts with an acid to form hydrogen gas?

What are the tiny magnetic area that can be either aligned or misaligned

Which of those molecules are polar. Co2, So2, CH2Cl2, PCl3

A chemical spill gets into the soil and effects the plants within a forested ecosystem. explain why the top predators would be most affected by this

If the heat released during condensation goes only to warming the iron block, what is the final temperature (in ∘C∘C) of the iron block? (Assume a constant enthalpy of vaporization for water of 44.0 kJ/molkJ/mol.)

Which of the following is not a disaccharide? A) sucrose B) maltose C) lactose D) amylose E) all of the above are disaccarides

The process by which a semipermeable membrane allows water molecules, small molecules, and ions to pass through while retaining large particles