How many grams of NaOH are needed to prepare 100. ml of a 0.20 M NaOH solution

A 0.0200 gram piece of unknown alkaline earth metal, M, is reacted with excess 0.500 M H ₂S O₄, and the hydrogen gas produced is collected over water. The total gas pressure inside the collecting tube is 1.01 atm, the air temperature 24.0 ° C.

Which of the following uses a non renewable energy resource to generate energy? A.) biomass power plant B.) wind farm C.) fireplace that burns wood D.) nuclear power plant

What evidence is there for continental drifft?

How would an increase in carbon dioxide concentration in the atmosphere change the green house effect? A. Carbon dioxide would change the greenhouse gases. B. It would make the greenhouse effect stronger. C.

Coal can be classified as which type of rock?

A college student driving to classes produces 8000 kg of carbon dioxide (CO2) in a year, contributing to global warming. What volume of CO2 is produced? (The density of carbon dioxide is 2.0 g/L.)

For the first five steps of glycolysis, the appropriate sequence of enzymes is: A. phosphofructokinase-1 (PFK-1). B. hexokinase / glucokinase. C. fructose bisphosphate aldolase. D. Phosphoglucoisomerase. E. triose phosphate isomerase (TPI). a.

2NO + O2 → 2NO2 What type of chemical reaction is shown above? a combustion reaction b double displacement C synthesis d decomposition e single displacement

Why did Bromophenal solutions change from yellow to blue (what chemical reaction happended) ?

How many milliliters of calcium, with a density of 1.55 g/mL, are needed to produce 85.8 grams of calcium fluoride in the single replacement reaction below? Show all steps of your calculation as well as the final answer.