Answer:
1)
a) 3.9 mol.
b) The limiting reactant here is HBr that is in a low no. of moles and Al is in excess.
2)
a) 5.45 mol.
b) The limiting reactant here is Si that is in a low no. of moles and N2 is in excess.
3)
a) 2.36 mol.
b) The limiting reactant here is KI that is in a low no. of moles and CuCl2 is in excess.
4)
a) 2.36 mol.
b) The limiting reactant here is O2 that is in a low no. of moles and FeS2 is in excess.
5)
a) 13.24 mol.
b) The limiting reactant here is NH3 that is in a low no. of moles and NO is in excess.
6)
a) 2.71 mol.
b) The limiting reactant here is O2 that is in a low no. of moles and C2H6 is in excess.
7)
a) 7.085 mol.
b) The limiting reactant here is NaOH that is in a low no. of moles and As is in excess.
8)
a) 5.632 mol.
b) The limiting reactant here is H2 that is in a low no. of moles and Au2S3 is in excess.
9)
a) 5.6625 mol.
b) The limiting reactant here is H2O that is in a low no. of moles and CO2 is in excess.
10)
a) 7.905 mol.
b) The limiting reactant here is Fe that is in a low no. of moles and O2 is in excess.
Explanation:
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Answer : Molar mass of the is 159.7 g/mol.
Molar mass of the is 101.96 g/mol.
Explanation:
Molar mass of :
Molar mass =
Molar mass of the is 159.7 g/mol
Molar mass of :
Molar mass =
Molar mass of the is 101.96 g/mol
6= Only the digits 1 and 6 are the actual measured values. Therefore we have only 2 significant figures.
0.3= Zeros used as placeholders are not significant. Zeros that come before non-zero integers are never significant. Example 5: The zeros in 098, 0.3, and 0.000000000389 are not significant because they are all in front of non-zero integers. c. If the zeros come after non-zero integers and are followed by a decimal point, the zeros are significant.
C. till .....................................................................
Answer:
An antenna
Explanation:
Radio waves are received by antennas