Answer:
The answer is B
Explanation:
Answer: Only the nervous and endocrine systems are involved in maintaining homeostasis.
Explanation: Hope this helped you
uh.. How many do you want done??
7.7056 x 10^23
2 Na + 1 Cl2 -> 2 NaCl
The answer is really simple, because if you have 1 nonmetal element that has a subscript of 2, you need to multiply the product and the first reactant by 2 to balance it.
the mass number decreases by 4 and the atomic number decreases by 2
