What is the lethal dose of chocolate

A student completes a lab and produces 1.3 moles of hydrogen gas by adding magnesium to sulfuric acid. If the student started with 22.8 grams of magnesium, what was the student's percent yield?

Which of the following is the minimum energy required for a reaction to occur? A activation energy B orientation energy C ionization energy D collision energy

Which of the following will occur if a prokaryotic cell is placed in a solution that has a higher concentration of solutes (that cannot readily diffuse across the plasma membrane) than does the cytoplasm of the cell?

Determine the volume (liters) of 0.750 m naoh solution required to neutralize 1.50 l of 0.500 m h2so4. the neutralization reaction is: h2so4 (aq) + 2naoh (aq) → na2so4 (aq) + 2 h2o (l)

Nearly all ionic compounds are solids at room temperature in the solids the total blank charge is balanced by the

When does a spring tide take place? At the beginning of spring Only during the spring season Only after spring is over At any time

The highest cloud are known as

What is the mass of 4.85 X 10^22 atoms of iron (Fe) ?

If element x has 95 protons how many electrons does it have

Which of the following when dissolved in deionized water would make a good conducting solution? a) methanolb) sugarc) baking soda