When the number of electrons decreases, the charge of the atom becomes more positive.
Answer:
2 P2 (1.2 atm =157 one. 8. A gas with a volume of 4.0 L
Explanation:
Answer:
40.06
Explanation:
<u>(23 * 39) + (48 * 40) + (29 * 41)</u>
100
= 40.06
formula:
<u>(% of isotope A * mass of A) + (% of isotope B * mass of B) ......</u>
100
Answer:
The final temperature of the water is 25.6 °C.
Explanation:
We have,
Heat added to water is 135.7 J
Mass, m = 54 g
Initial temperature was 25 °C
It is required to find the final temperature of the water. The heat added when temperature is increased is given in terms of specific heat capacity as :

is final temperature
c is specific heat capacity, for water, 
So,

So, the final temperature of the water is 25.6 °C.
(20/23) times 100 is 87%
now the answer asks for percentage ERROR
100-87 =13
so answer is C