When using the scientific method, which step comes last? O A. Design an experiment.
B. State the problem.
C. Draw conclusions.
O D. Make observations.
SUBMI

If 34.2 grams of lithium react with excess water, how many liters of hydrogen gas can be produced at 299 kelvin and 1.21 atmospheres? 2 li (s) + 2 h2o (l) yields 2 lioh (aq) + h2 (g)

What type of reaction is shown below? check all that apply. 2h2o2 → 2h2o + o2 synthesis decomposition combustion

What happened to the amount of carbon dioxide in the atmosphere from 2010–2017?