Answer:
MnO- Manganese Oxide
Explanation:
Empirical formula: This is the formula that shows the ratio of elements
present in a
compound.
How to determine Empirical formula
1. First arrange the symbols of the elements present in the compound
alphabetically to determine the real empirical formula. Although, there
are exceptions to this rule, E.g H2So4
2. Divide the percentage composition by the mass number.
3. Then divide through by the smallest number.
4. The resulting answer is the ratio attached to the elements present in
a compound.
Mn O
% composition 72.1 27.9
Divide by mass number 54.94 16
1.31 1.74
Divide by the smallest number 1.31 1.31
1 1.3
The resulting ratio is 1:1
Hence the Empirical formula is MnO, Manganese oxide
Answer: 824.6 g of NaCl are produced from 500.0 g of chlorine.
Explanation:
To calculate the moles :
According to stoichiometry :
1 mole of produce = 2 moles of
Thus 7.04 moles of will produce= of
Mass of
Thus 824.6 g of NaCl are produced from 500.0 g of chlorine.
Explanation:
Transition Metals are characterized by the filling of d orbitals?
Answer:
See figure 1.
Explanation:
In this case have to take into account that <u>all structures</u> must have the formula: . If we remember the <u>general formula for alkanes</u>: if we have <u>"7" carbons (n=7)</u> we will have <u>16 hydrogens</u>. Therefore all the structures that fit with this formula are alkanes.
Answer: How do contrasting colors affect the quality of a painting?
Explanation:
The object study of science is objective phenomena, which are those phenomena that can be measured in a form that every ones agree because they do not depend on the particular subject that is involved in the study.
Color of light, mating behaviors of bees, soil pH, the productivity of fruit trees, temperature, and the amount of oxygen able to dissolve in water are variables or characteristics that can be objectively measured, so they can be perfectly object of study of and answered by science.
On the other hand, the ability to contrast color and the quality of paintings are characteristic that are subjective: they depend on the subject that assess such properties. This makes that a question like "How do contrasting colors affect the quality of a painting?" cannot be answered by science.