PbCo3 is it aqueous or solid

Witch of the following are part of the scientific method

Which best describes two ways in which hydrogen is involved in photosynthesis? A) 1 - Hydrogen is stored in leaves of plants. 2 - Hydrogen combines with carbon dioxide to make glucose. B) 1 - Hydrogen is stored in leaves of plants.

The sodium combines with the chlorine to form the sodium chloride.

What is the minimum mass of nh4hs that must be added to the 5.00-l flask when charged with the 0.250 g of pure h2s (g), at 25 ∘c to achieve equilibrium?

Herbicides: 1. are used to kill insects 2. can increase crop yields by killing weeds 3. supply plants with nutrients and minerals 4. are only used with hybrid plants

In which of these samples do the molecules most likely have the least kinetic energy?

Just as heat can denature enzymes, so can a change in the pH. Enzymes that normally work in an acidic environment in the body can become denatured if the pH becomes too alkaline.

A group of students wants to see how temperature affects the time it takes for spilled water to dry up in the investigation what will be the dependent and independent variables

What is not true of white light?

Diatoms and some yeasts are unicellular eukaryotes that have mechanisms of nuclear division?