Answer:
complex
Explanation:
becaause it fits in the words equation I hoped i helped
Answer:
305.88 g
Explanation:
4 Al + 3 O₂ → 2 Al₂O₃
First, we <u>convert 6 moles of aluminum (Al) into moles of aluminum oxide (Al₂O₃)</u>, using the <em>stoichiometric coefficients</em>:
6 mol Al * = 3 mol Al₂O₃
Finally we <u>convert 3 moles of aluminum oxide into grams</u>, using its<em> molar mass</em>:
3 mol Al₂O₃ * 101.96 g/mol = 305.88 g
For the First part I believe elements naturally exist in nature and compounds are formed so elements can be more stable. (I think this is right I’m not 100% but I’m close)
For the second part the two main types of bonds are ionic and covalent. Ionic bonds involve the transfer of electrons and covalent bonds involve the sharing of electrons. (I’m 100% on this one)
The half-life of potassium-40 is about 1.25x10^9, or 1.25 billion, years. it undergoes beta decay and becomes argon-40. Equal amounts would be one half-life, so the sample is also 1.25x10^9 years old.