Answer:
D. The coefficients give the ratio of mole reactant to moles product.
Explanation:
In stoichiometric calculations, the amount of product formed from reactants can be determined.
- Using this approach, the number of moles of reactants and products on both sides of the expression must be balanced.
- As a rule of thumb, the coefficients give the ratio of moles of reactants to moles of products.
- This is very useful in a number of calculations using the stoichiometric approach.
The correct answer is option C, that is, far greater than 118 as elements combine in different ways.
The estimated number of compounds produced by the elements in the periodic table is much greater than 118 as elements can combine in different manners. Compounds are the substances comprising more than one element that is held together with chemical bonds. In addition, they can be transformed into a distinct chemical composition by associating with another compound through a chemical reaction.
Answer:
Explanation:
S is in 3d period, so it has 3 levels
1 level has 2 electrons, 2d level 8 electrons, 3d level 6 electrons
