What evidence do vestigial organs provide to support the idea that life changes over time?

What are the coefficients that belong in the blanks to balance the following chemical equation? __ Silver (I) Iodide + __ Sodium sulfide - -> __ Silver (I) sulfide + __ Sodium Iodide

Which has more moles of carbon atoms, 169.2g of vitamin B6 or 176.1g of vitamin C?

write the equation that matches the description one atom of zinc reacts with one atom of sulfur to yield one molecule of zinc sulfide

18 g of copper is mixed with silver nitrate in water. How much copper ll nitrate will formed?

The energy of the color light increases in order of red yellow green blue and violet list of metal ions in increasing order of energy of light emitted

List two things you know about nonrenewable energy

Does a mole of hydrogen have the same mass as a mole of oxygen? explain your answer.

A 0.500-L sample of H₂SO₄ solution was analyzed by taking a 100.0mL aliquot and adding mL of. After the reaction occurred, an excess of ions remained in the solution. The excess base required mL of for neutralization.

Ammonia can be prepared by the reaction of magnesium nitride with water. The products are ammonia and magnesium hydroxide. Write and balance the equation.

Which period is the shortest in the long form of the periodic table? Name all the elements in this period.