Convection currents are caused by differences in what 2 things?

Which of the following steps will speed up the reaction between a baking soda solution and a calcium chloride solution in a beaker? Keep the beaker in a freezer. Keep the beaker in sunlight. Pour the solutions into a flat dish.

What's the definition of double replacement reaction

Examine the statements. A - Oppositely charged ions attract. B - Atoms donate and receive electrons. C - Charges of ions balance one another. D - Anions and cations are formed.

In basic solution, se2 - and so32 - ions react spontaneously and e o cell = 0.35 v. (a) write the balanced half-reactions for this process. include the states for each reactant and product. (b) if e o sulfite is - 0.57 v, calculate e o selenium.

Only 10% of energy available at each trophic level moves on to the next level. What happens to the other 90%

What is a chemical bond formed when valence electrons are shared among positively charged atoms

For the reaction shown, calculate how many grams of oxygen form when each quantity of reactant completely reacts. 2 KClO3 (s) → 2 KCl (s) + 3 O2 (g) 2.72 g KClO3 0.361 g KClO3 83.6 kg KClO3 22.5 mg KClO3

Which element has the greatest ionization energy? Lithium (atomic # 3), Boron (atomic # 5), Nitrogen (atomic # 7), or fluorine (atomic # 9),?

What is the number of moles of solute in 0.250 L of solute in 0.250 L of a 0.4M solution

What is the balanced chemical equation for c2h6+o2=co2+h2o