What is the voltage for the following cell: Cu(s)| Cu+(aq) || Mg2+(aq) |Mg(s)? 1. 2.98V
2. 2.89V
3. 3.78 V
4. 3.87 V ​

Match each object to its description: a. coma of a comet b. comet tail c. oort cloud haze surrounding a nucleus created by solar wind. hypothetical sphere around the solar system

If 90.0 grams of ethane reacted with excess chlorine,how many grams of dicarbon hexachloride would form

Read the chemical equation. 2c2h2 + 5o2 → 4co2 + 2h2o which of the following statements would be correct if one mole of c2h2 was used in this reaction? one mole of oxygen was used in this reaction. five moles of oxygen were used in this reaction. four moles of carbon dioxide were produced from this reaction. two moles of carbon dioxide were produced from this reaction.