<span> There are 97.2 mol of O in 10.8 mol of Fe(NO3)3</span>
Answer:
(1) Nonbonding electron pairs are present on the F in the molecule HF. True
(2) The two atoms involved in a multiple covalent bond must always be atoms of the same element. False
(3) A molecule of hydrogen peroxide contains the same number of atoms as a molecule of sulfur trioxide does. True
Two of the three statements are true.
Explanation:
Non bonding electrons are also known as lone pairs. They are electron pairs present on an atom but are not involved in chemical bonding. They are usually localized on the atom of one of the bonding elements. In HF, there are three nonbonding electrons localized on the fluorine atom that do not participate in chemical bonding.
When multiple bonds are formed between atoms, they must not be atoms of the same element, for instance carbon and nitrogen forms multiple covalent bonds in chemical moieties such as they cyanide ion.
A molecule of hydrogen peroxide (H2O2) contains four atoms just as a molecule of sulphur trioxide(SO3) does.
type the question please. The picture is to hard to see
Answer:
C.106 ml
Explanation:
Boyle's Law P₁V₁ = P₂V₂ , but we need to make sure our pressure is in the same units, in this case we will convert torr to atm
811 torr * (1atm/760torr) = 1.067105263 atm
P₁V₁ = P₂V₂
(1.067105263 atm)(11.1 mL) = (0.112 atm)(V₂)
V₂ = 11.84486842/0.112
V₂ = 105.7577538 mL = 106 mL
<span>The number of protons in every atom of an element determines the atomic number of an atom. Short after Rutherford made the gold foil experiment, the British scientist Henry Mosely discovered that the atoms of every element have a unique positive charge in their nuclei. This positive charge is the number of protons and is called atomic number. So, the atomic number identifies every different element.</span>
