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BlackZzzverrR [31]
3 years ago
10

This might look confusing but I really need help on this!! I suck at chemistry

Chemistry
2 answers:
QveST [7]3 years ago
6 0

Answer:

A) the mass of the reactants is the same as the mass of the product

I guess

Explanation:

the law of conservation of mass stats that Mass of reactant is always equal to the Mass of the product

ella [17]3 years ago
4 0

Answer:

I believe the answer is A

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How many magnesium ions are present in 5.36 x 10-4 mol of magnesium iodide?
WARRIOR [948]
Magnesium iodide = MgI₂
mass of Mg = 24.3g
mass of I = 126.9g
mass of MgI₂ = 24.3 + 2*126.9 = 278.1g = 1 mole

in 5.36x10⁻⁴ mole of MgI₂ ---------------- x g of Mg
in 1 mole of MgI₂ ------------------------------ 1 mole of Mg
x = 5.36x10⁻⁴ moles of Mg = 0.000536 moles of Mg

answer: we've 0.000536 moles of Mg (magnesium ions) in 5.36x10⁻⁴ moles of MgI₂

4 0
4 years ago
A mixture of equal amounts of two enantiomers ________.
Tju [1.3M]

Answer:

Racemic mixture of racemate

Explanation:

A racemic mixture or racemate is a mixture with the same amount of left- handed  and the right handed enantiomers.

The main characteristic of a racemic mixture is that is optically inactive, that means that can not rotate polarized light. Also a racemic mixture has other different physical properties than the pure enantiomers.

8 0
3 years ago
When a negatively charged species is most appropriately depicted as a hybrid of several resonance forms, the negative charge pre
Varvara68 [4.7K]

Answer:

True

Explanation:

Resonance is a concept that was introduced when it was not possible to represent a compound with a single Lewis structure. Lewis formulas represent localized electrons, either shared by two atoms in a covalent bond or as non-shared electrons belonging to a given atom. Certain organic compounds, especially those containing multiple bonds can be described by more than one Lewis structure. In these cases, the true Lewis structure has an electronic distribution that is a "hybrid" of all possible Lewis structures of that molecule. Each of Lewis's structures is known as resonance or canonical forms and they are related to each other by a double-headed arrow, where all possible positions of electrons in that molecule are represented.

This type of compound has multiple bonds (double or triple) where electrons are not fixed, but move quickly between atoms, "resonating" between the different Lewis structures. For this reason, when a resonance hybrid has a negative charge, this charge moves between the different resonant structures.

Many times, an intermediate Lewis structure is drawn, with dotted lines, simulating approaching the real structure of the compound, and where this phenomenon of electron and charge mobility can be observed. For example, as we can observe in the ozone resonance image.

5 0
3 years ago
The bonds in compound MgSO4 can be described as
Sloan [31]

the answer is IONIC

8 0
3 years ago
Are all lenses planer?
skelet666 [1.2K]

no all lenses aren't plan

3 0
3 years ago
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