Answer:
Explanation: Q2. How many molecules of CO2 are present in 0.20 mol of CO2? [Show your calculation)Q2. How many molecules of CO2 are present in 0.20 mol of CO2? [Show your calculation)Q2. How many molecules of CO2 are present in 0.20 mol of CO2? [Show your calculation)Q2. How many molecules of CO2 are present in 0.20 mol of CO2? [Show your calculation)Q2. How many molecules of CO2 are present in 0.20 mol of CO2? [Show your calculation)
Answer:
ions, less
Explanation:
A displacement reaction happens when a more reactive metal (one that forms positive <u>ions</u> more easily) removes a <u>less</u> reactive metal from a compound.
Answer: Breathing through a mask decreases the amount of oxygen we need to live & be. The only potentially toxic molecule that you routinely exhale is carbon dioxide. Carbon dioxide would not be trapped by a mask.
Explanation:
Answer:
Gelada baboons plays a significant role.
Explanation:
The role of gelada baboons in their ecosystem is very important because they aerate the soil for plants which is necessary for good plant growth. These gelada baboons also helps in controlling the population of predator in their ecosystem which is very essential for the stability and equilibrium of the ecosystem so gelada baboons has a good effect on both plants and animals in their ecosystem.
Answer:
3.98 g
Explanation:
Step 1. Write the balanced chemical reaction. In this case, magnesium reacts with oxygen to produce magnesium oxide:
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Step 2. Calculate the number of moles of magnesium:
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Step 3. Calculate the number of moles of oxygen:
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Step 4. Identify the limiting reactant comparing the equivalents. Equivalent of Mg:
Equivalent of oxygen:
Therefore, Mg is the limiting reactant.
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Step 5. According to the stoichiometry of this reaction:
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Step 6. Convert the number of moles of MgO into mass: