<span>A chemical equation is balanced by changing or adding C. numbers in front of molecules, which are called coefficients.
For example:
O2 + 2 H2 ---> 2 H2O (number 2 is added to both sides in order to balance the equation)</span>
Answer:
they have same number of electrons
I think it would be c b then a
Answer:
130.1 x 10²³ molecules of sugar
Explanation:
One dozen = 12 donuts
1 doughnut = 1.8 moles of sugar
12 doughnut = (1.8 x 12) moles of sugar = 21.6 moles of sugar
1 mole of any substance contains Avogadro’s number (6.023 x 10²³) of molecules.
1 mole of sugar = 6.023 x 10²³ molecules of sugar
21.6 moles of sugar = (6.023 x 10²³ x 21.6) molecules of sugar
= 130.1 x 10²³ molecules of sugar
Answer:
she can use crystalization method.
Explanation:
She should boil that liquid on flame and then cool it down on mederate temprature and check it out rather the crystals formed or not . if crystals are formed then there will be salts.
And if she want topredict the certain salt then she has to perform certain reactions.
