An atom has 16 protons and 16 neutrons. which of the following could be the symbol for that atom, including its mass numbe? consult the periodic table. a. 35cl b. 32s c. 32cl d. 35s

Option b. 32S

Explanation:

Given:

No. of protons = 16

No. of neutrons = 16

Atomic number of an element is equal to the number of protons present in it.

Therefore, atomic number of the element = 16

Mass number of the element is equal to sum of number of protons and neutrons.

Therefore, Mass number = 16 + 16 = 32

Element 'S' has atomic number 16 and its mass number is 32.

So among the given options, option b is correct.

a graduated cylinder.

explanation:

answer: the value of enthalpy change will be -152.80 kj.

solution:

pressure = 1atm , temperature = = 298 k

given that pressure and temperature are same in both gases , the number of moles of both gases can be determined by the ideal gas equation.

according to reaction 3 moles no are reacting with 1 mol of ,then 0.49 mol of no will react with moles of ozone that is 0.16 moles of ozone. since, no is limiting reagent and is an excessive reagent.

enthalpy change for the reaction between the given volumes of the gases is :