None, they are two different metals.
17.48 atoms
If this compound existed it would be called chromium heptoxide. This would imply an impossibly high oxidation number for chromium. Chromium forms a number of oxides including Cr2O3 and a chromium(VI) oxide, chromium oxide peroxide.
The Stock name would be chromium(III)+
1.388 g HNO3
Nothing is produced, 500g potassium chlorate will be the same 500 g potassium chlorate after reaction. Actually there is no reaction at all.
35 grams X 80 dollars/ 14 grams = 200. The cost of 35 grams of copper would cost $200 according to the given information.
One modern cent weighs 2.5 grams and contains 2.5% copper, which is 0.0625 grams or about 0.000138 lbs of copper per penny. To get one full pound of copper, it would take 7,246 pennies.
66g
If you weighed 68000 grams, 44200 grams would be oxygen, 12240 grams would be carbon, 6800 grams would be hydrogen, 2040 grams would be nitrogen, 1020 grams would be carbon, 816 grams would be phosphorous, you would have 136 grams each of chlorine, sulfur, and potassium, 68 grams would be sodium, 34 grams would be magnesium, and you would have about 136 grams of iron, cobalt, copper, zinc, and iodine combined, and 13.6 grams of selenium and fluorine combined. You do the rest.
In 1 pound of pre-1982 copper pennies, there are approx 448 grams of weight. Knowing that a copper pre-82 penny weighs 3.11 grams, simply divide the approx 448 grams in 1 pound by the individual penny weight of 3.11grams. The answer to"how many copper pennies does it take to make a pound" is this.It would take 144.05144 copper pennies to weight 1 pound........give or take a couple.One copper cent weighs 3.11 grams, and one pound is 453.59 grams. Do the math, and it comes out to 146 copper cents per pound.
Weight:1.45 grams volume: 6.789
If this compound existed it would be called chromium heptoxide. This would imply an impossibly high oxidation number for chromium. Chromium forms a number of oxides including Cr2O3 and a chromium(VI) oxide, chromium oxide peroxide.
17.48 atoms
The Stock name would be chromium(III)+
31.3 g CuO
Somewhere between 500 grams (for modern zinc pennies) and 620 grams (for old copper pennies).
1.388 g HNO3