Answer:
its atomic number is 92 and its atomic mass is 238(92+146).
Explanation:
For example,Silicon has 14 protons and 14 neutrons.its atomic number is 14 and its atomic mass is 28
A: adenine
C: cytosine
g: guanine
t: thymine
Answer:
= 7234.5Joules
Explanation:
Q = (mcΔT)ice + (mΔH)melting +(mcΔT)water
= (10.5g)(2.06J/g°C)[0°C-(-20°C)+(10.5g)(2257J/g)+(10.5g)(4.184J/g°C(75°C - 0°C)
= [(10.5)(2.06)(20) + (10.5)(2257) + (10.5)(4.184)(75)]J
= 432.6J + 3507J + 3294.9J
= 7234.5Joules
Answer:
polarity is a separation of electric charge leading to a molecule or its chemical groups having an electric dipole moment, with a negatively charged end and a positively charged end.
Answer:
Explanation:
Molar mass of FeCl3 = 162.2 g/mol
1 mole FeCl3 -------------- 162.2 g
mole FeCl3 ---------------- 1.1 g
moles = 1.1 / 162.2
= 0.00678 moles
