The shaded areas of this diagram represent where fossils of a land-dwelling animal were found on the continents of South America and Africa, What does this
evidence suggest?

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)

Is 9 correct? and can someone me with 10? it’s due tomorrow, you

Asubstance is a good conductor of electricity which of the following best explains a probable position of the substance in a periodic table