Answer:
because of the substance contained in a fire extingudher it woulfnt start a fire.
Answer:
The right answer is (D)
Explanation:
If captured, some of the energy of the excited electrons is used to split carbon dioxide into carbon and oxygen.
Electron when in excited state either it jumps to the higher orbital if it has absorbed energy or it can fall to a lower orbital.
Answer: 35.4 grams
Explanation:
Molarity of a solution is defined as the number of moles of solute dissolved per Liter of the solution.
where,
Molality = 2.65
n= moles of solute =?
= volume of solution in ml = 445 ml
Putting in the values we get:
Mass of solute in g=
Thus 35.4 grams of is needed to prepare 445 ml of a 2.65 m solution of .
Neutrons.
Electrons have little to no mass, therefore shouldn't be electrons.
Also there is only eight protons in this atom, while there are nine neutrons.
False, because oxygen becomes water