Particle, Relative Mass<span>, Actual </span>Mass<span> (g) </span>Electron<span>- 1 , 9.11*10 power -28 g. ... Calculate: What is the diff </span>expressed in kg between the mass<span> of a </span>proton and the mass<span> ... Best Answer: </span>difference<span>in </span>mass<span> = [1.673 x 10^(-24) - 9.11 x ...</span>
No, unless the slime or paper is wet.
The neutral atom also has 20 electrons, but to form the 2+ ion, it needs to lose 2 of these, giving just 18 electrons. A neutral calcium atom has 20 protons and so 20 electrons. A calcium ion has a 2+ charge so it has lost 2 electrons. It has 20 protons and 18 neutrons.
Answer: I hate you and you are a loser
Explanation: you are a loser for whoever wrote this question
Answer:
20 ml 13% solution should the professor use
Explanation:
Let
the volume of the 13% solution should the professor use = a
So, according to question
13% x a + 18% x (50-a) = 50 x 16%
⇒ 0.13 a + 0.18 x 50 - 0.18 a = 50 x 0.16
⇒ - 0.05 a = 8 - 9
⇒ 
So, <u>20 milliliters of the 13% solution</u> should be the professor used.
& (50 - 20) = 30 ml of the 18 % solution would be use.
