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rosijanka [135]
1 year ago
10

The 2 oxygen atoms forming molecules of oxygen gas that you breathe are joined by a polar covalent bond. explain why this statem

ent is true or false?
Chemistry
1 answer:
AlexFokin [52]1 year ago
3 0

This statement is false because two oxygen atoms are equally electron hungry and equally share their electrons.

<h3>Oxygen </h3>

The chemical element with the letters O and the atomic number 8 is called oxygen. It belongs to the chalcogen group of the periodic table and is a highly reactive nonmetal that rapidly forms oxides with most elements as well as with other compounds. The third-most plentiful element in the universe after helium and hydrogen is oxygen, which is also the most abundant element on Earth. Dioxygen, a colorless and odorless diatomic gas with the formula O2, is created when two of the element's atoms combine at standard temperature and pressure. Although this has changed significantly over time, diatomic oxygen gas currently makes up 20.95% of the Earth's atmosphere. Nearly 50% of the Earth's crust is made up of oxides, which contain oxygen.

Learn more about oxygen here:

brainly.com/question/2272415

#SPJ4

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When a strip of magnesium metal is touched to a flame, a bright light and a whitish substance are produced. Why is ghe burning o
Kipish [7]
It changes the chemical composition of the magnesium into something else (whitish substance)
3 0
3 years ago
A sample of a monoprotic acid (ha) weighing 0.384 g is dissolved in water and the solution is titrated with aqueous naoh. if 30.
posledela
The formula for the monoprotic acid is taken as HA, reaction with base is as follows;
HA + NaOH ---> NaA + H₂O
Stoichiometry of acid to base is 1:1
At the neutralisation point, number of HA moles = number of base moles
Number of NaOH moles reacted = 0.100M / 1000 mL /L x 30.0 mL = 0.003 mol
Therefore number of HA moles reacted = 0.003 mol
the mass of acid 0.384 g
Therefore molar mass - 0.384 g/ 0.003 mol = 128 g/mol
3 0
3 years ago
Explain why all glassware must be dry and the solvent anhydrous during formation and reaction of a grignard reaction. Further, e
mario62 [17]

Answer:

The glassware and solvent for the production of grignard reagent and its reaction should by dry and anhydrous so as to prevent the conversion of the grignard reagent into saturated alkane. Acetone, is not a good solvent for the generation of grignard reagent because it has the potential of forming alcohol.

Explanation:

Grignard reagent is a compound formed by the reaction of halide of alkyl or alkene with magnesium metal. This makes the compound more nucleophilic. Thus the availability of an electrophile around it will evoke a quick reaction. The presence of water in an acidic condition will generate hydroxonium ions which are highly electrophilic. There will therefore be an introduction of hydrogen ions to the grignard reagent and which will displace the MgBr leading to the formation of alkane.

Acetone tends to produce alcohol when they are exposed to grignard reagent, thus they are not appropriate to be used as solvent. This is due to the resultant highly electrophilic nature of the carbonyl carbon on the acetone, thus will react with the nucleophilic carbon on the grignard. The reaction can be represented as follows:

RMgBr + CH3(CO)CH3 + H (with hydrogen ions) >>>RCOH + Mg(OH)Br

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3 years ago
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natta225 [31]

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Although the daytime length at the Equator remains 12 hours in all seasons, the duration at all other latitudes varies with the seasons. During the winter, daytime lasts shorter than 12 hours; during the summer, it lasts longer than 12 hours.

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Maybe this answer is hopeful in your homework.

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Acid rain is a type of pollution caused mainly from
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Answer:

im pretty sure its the second one

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