Experiment:phase changes, what was the temperature of the ice before you added heat?

If a light bulb is missing or broken in a series circuit will the other bulb light?

Lactic acid is a common by-product of cellular respiration and is often said to cause the "burn" associated with strenuous activity. a 25.0-ml sample of 0.100 m lactic acid (hc3h5o3, pka 5 3.86) is titrated with 0.100 m naoh solution.

A deer that grazes on grasses would be considered a decomposer primary consumer tertiary consumer secondary consumer

Information related to a titration experiment is given in the balanced equation and table below. H2SO4 (aq) + 2KOH (aq) → K2SO4 (aq) + 2H2O (2) Titration Experiment Results volume of H2SO4 (aq) used 12.

The reaction between hydrogen and oxygen to yield water vapor has ΔH∘=-484kJ: 2H2 (g) + O2 (g) →2H2O (g) ΔH∘=-484kJ How much PV work is done in kilojoules for the reaction of 3.20 mol of H2 with 1.

Which two of the following elements would you expect to be most similar: nitrogen, chlorine, barium, fluorine, and sulfur?

Which statement best describes control rods? They are unmovable pieces. They are inert. They supply neutrons to start the nuclear chain reaction. They drive the generator

A large rift valley can be found along the east coast of Africa. It has been slowly widening over time, and it is now wide enough to contain many large lakes. Which of these best explains the slow widening of this rift valley over time? A.

How does the density of aluminum compare with the density of gold

Which of the following provided a hypothesis as to how the universe began? A) the moon collision theoryB) the big bang theoryC) the antimatter theoryD) the molten theory