There is no hydrogen in ammonium sulfide it is just 1 ammonium and 1 sulfer
13/1570
equation for molarity = moles of solute / litres of solution
Molarity = 6.5/785=13/1570
In order to solve, take the total and times the percentage:
200 x 0.12 = 24 < 24 represents the number of baseballs that HAD defects.
To find which ones did not have defects, subtract 200-24, which is 176.
Answer: 176
Answer:
The nucleus of an atom is made up of a dense ball
of <u>protons</u> and <u>neutrons</u> surrounded by <u>electrons.</u>
Explanation:
We know that an atom consist of electrons, protons and neutrons. Neutrons and protons are present inside the nucleus while electrons are present out side the nucleus. Electron has a negative charge and is written as e⁻. The mass of electron is 9.10938356×10⁻³¹ Kg . While mass of proton and neutron is 1.672623×10⁻²⁷Kg and 1.674929×10⁻²⁷ Kg respectively.
Symbol of proton= P⁺
Symbol of neutron= n⁰
The number of electron or number of protons are called atomic number while mass number of an atom is sum of protons and neutrons. The umber of protons and electrons are always equal to make the atom electrically neutral and when an atom loses its valance electron the number of protons increases and thus positive charge increased and atom form cation.
It's B. The rotation of the earth on its axis.