heat is transferred from your hand to the ice cube
Correct me if I wrong but I think it's "c"
The empirical formula for pyrite is FeS2.
HOW TO CALCULATE EMPIRICAL FORMULA:
- The empirical formula represents the simplest whole number ratio of constituents element of a compound. The empirical formula of pyrite can be calculated as follows:
46.5 mass % Fe = 46.5g of Fe
53.5 mass % S = 53.5g of S
- Next, we divide each element's mass value by its molar mass
Fe = 46.5g ÷ 56g/mol = 0.83mol
S = 53.5g ÷ 32g/mol = 1.67mol
- Next, we divide each mole value by the smallest (0.83mol)
Fe = 0.83mol ÷ 0.83 = 1
S = 1.67mol ÷ 0.83 = 2.014
Approximately, the ratio of Fe to S is 1:2. Therefore, the empirical formula of pyrite is FeS2.
Learn more at: brainly.com/question/14044066?referrer=searchResults
The answer would be B, an electron because the proton is positive, neutron is neutral, and the nucleus is the center of the atom.
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➷ We can use the information to form an equation, which we can solve later
M = 2x + 8
Simply substitute the daughter's age into x:
M = 2(56) + 8
Now solve:
M = 120
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➶ Hope This Helps You!
➶ Good Luck (:
➶ Have A Great Day ^-^
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