Answer: Coastlines.
Explanation: South America's and Africa's shoreline interlocks perfectly. Which implies they must have been joined together in history.
Answer:
<em>By</em><em> </em><em>Bayer</em><em> </em><em>process</em><em>.</em>
Explanation:
<em>In the Bayer process, bauxite ore is heated in a pressure vessel along with a sodium hydroxide solution (caustic soda) at a temperature of 150 to 200 °C. At these temperatures, the aluminium is dissolved as sodium aluminate (primarily [Al(OH)4]−) in an extraction process.</em>
When the neutrons and electrons are the same. For example, sodium (Na) has an atomic mass of 11, meaning it has 11 protons and 11 electrons etc.
Explanation:
We're using the chemical equation:
4P + 5O2 → P4O10
First convert grams of product to moles:
75g P4O10 x (1mol / 284 g) = 0.264 mol P4O10
Using the mole ratios, convert moles of product into moles of reactant needed:
0.264 mol P4O10 x (5 mol P / 1 mol P4O10) = 1.32 mol O2
