The temperature of 150 mL of water is 25°C. What must happen for the temperature of the water to increase to 35°C?
A. More water must be added to increase the thermal energy.
B. Thermal energy must be transferred from the water to decrease
the average kinetic energy of the water molecules.
C. Thermal energy must be transferred to the water to increase the
average kinetic energy of the water molecules.
D. Water must be removed to decrease the thermal energy.
SUBMIT

explanation:

let the different atoms be x and y. each with four protons and same mass will be represented as follows.

mass number is number of protons + number of neutrons.

            and  

since, it is given that one has a negative charge while the other is neutral. therefore, there will be increase in number of protons and the atom will be represented as follows.

according to periodic table, mass number of beryllium is 9 and it has atomic number 4 so, the atoms will be and .  

the protons and neutrons will be located inside the nucleus whereas the electrons will be revolving around the nucleus.  

16

explanation:

the marks go by 4s