Answer:
Explanation:
Oxidation In chemistry is the gain in oxygen, loss of hydrogen and loss of electrons. Oxidation occur when an element with gain oxygen, loss hydrogen or loss electrons, which means the element is oxidized. Compared to reduction which is loss ofoxygen, gain of hydrogen and gain of electrons.
From the the question , Ag( silver) is undergoing oxidation.
Answer:
236.8 g
Explanation:
From the reaction equation;
CaC2 + 2H2O(I) --------> C2H2(g) + Ca(OH)2(aq)
Since;
1 mole of CaC2 yields 1 mole of Ca(OH)2
It follows that 3.20 moles of CaC2 also yields 3.2 moles of Ca(OH)2
Mass of Ca(OH)2 = number of moles * molar mass
molar mass of Ca(OH)2 = 74 g/mol
Mass of Ca(OH)2 = 3.20 moles * 74 g/mol =
Mass of Ca(OH)2 = 236.8 g
Answer:
yes. because look at the equation it will have an ionic bond
Explanation:
Answer:
Wheat!
Explanation:
Corn ranks first, Wheat, then Rice!
First we need to calculate the molar mass of
:
Na: 22.99g * 2 = 45.98g
Cr: 51.996g
O: 15.999g * 4 = 63.996g
Then add all of them together:
Now we know the molar mass of
is 161.97g.
We are given the amount of grams used in the solution. So let's find how many moles that were used:
We are asked to calculate the molarity, and we know the molarity formula is as follows:
We just calculated the number of moles that were used, and we are given the amount of solution (in mL, but we can convert 630 mL to 0.63 L by dividing by 1000 since there are 1000 mL in 1 L). So let's plug in the values to calculate for molarity:
So now we know that
the molarity of the solution is 0.12 M.