If the atom is neutral, it has the same number of protons as electrons. If there are 5 electrons, there are also 5 protons.
Answer:
In a single replacement reaction, one element takes the place of another in a single compound. In a double replacement reaction, two compounds exchange elements. A combustion reaction occurs when a substance reacts quickly with oxygen. Combustion is commonly called burning
Answer:
270 μA
Explanation:
Use the magnetic field due to long, straight wire and solve for current I.


plug in the values

= 2.7×10^{-4)×10^6
=270 μA
The current that flows in the heart is 270 μA