Answer:
By emitting an electron and an electron antineutrino, one of the neutrons in the carbon-14 atom decays to a proton and the carbon-14 (half-life of 5,700 ± 40 years) decays into the stable (non-radioactive) isotope nitrogen-14.
Half-life: 5,730 ± 40 years
Names: carbon-14, C-14, radiocarbon
Isotope mass: 14.003241 u
Answer:
A ,B- false
C,D- true
Explanation:
Dipole forces always lead to stronger attraction and boiling points than dispersion forces. When linear molecules are involved, they often posses greater dipole forces and higher boiling points. Linear alkanes posses higher boiling points than branched alkanes.
Answer:
3.24 x 10⁴
Explanation:
There are only three sig figs in the starting integer, so to express that in Scientific Notation, you should have the same number of sig figs in the final answer.
Place a pointer at the end of the number 32,400, which should start behind the end of this number, which would be "32,400."
Move it to the left until you land on a number that IS NOT zero.
The number of spaces you've moved is the number of significant figures.
So once you get to the end, you'll notice you moved FOUR spaces, which explains why you are multiplying it by 10⁴.
Answer:O D to protect the environment from harmful chemicals
Explanation:
Answer:
a)Anode-Zinc
Cathode - Iron
b) At the anode;
Zn(s) -----> Zn^+(aq) + 2e
At the cathode;
Zn^+(aq) + 2e -----> Zn(s)
c) ZnSO4
d) The electrode which is connected to the positive post of the battery is the anode.
The electrode which is connected to the negative post of the battery is the cathode.
Explanation:
Electroplating is an electrolytic process in which a metal is used to cover the surface of another metal. The plating substance is the anode while the plated substance is the cathode. The electrolyte is a salt of the plating metal.
The anode of an electrolytic cell must be maintained at a positive potential with respect to the cathode hence it is connected to the positive terminal of the battery. The cathode must be maintained at a negative potential hence it is connected to the negative terminal of the battery.