In the reaction 2co (g) + o2 (g) â 2co2 (g), what is the ratio of moles of oxygen used to moles of co2 produced? select one:

How does the temperature change from north to south

4.00 g of sodium and 2.00 g of oxygen react according to the following balanced equation 4 Na + O2 → 2 Na2O Calculate the mass of Na2O that can be produced by this reaction

How many moles are in 72g of NaOH

If you want to measure a volume of 8 microliters that could be done with two different micropippetors (the 1-10 uL or 2-20 uL). Which would you choose to use? Explain your answer

Which of the following describes the electron sharing between hydrogen and fluorine? A. Hydrogen shares one electrons, while fluorine shares seven electrons. B. Hydrogen shares seven electrons, while fluorine shares one electrons. C.

When does a spring tide take place? At the beginning of spring Only during the spring season Only after spring is over At any time

The highest cloud are known as

What is the mass of 4.85 X 10^22 atoms of iron (Fe) ?

If element x has 95 protons how many electrons does it have

Which of the following when dissolved in deionized water would make a good conducting solution? a) methanolb) sugarc) baking soda