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3 years ago

Name an atom that loses one electron when it reacts to another atom

1 answer:

4 0

Lithium, Sodium, Potassium; any of the Alkali Metals, which are farthest left on the periodic table. This is because they only have one electron in their outermost shell, so they would rather lose an electron rather than try to gain 7 to achieve that full outer shell.

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Two common methods to generate an aldehyde is by oxidation of an alcohol and through ozonolysis.

kotykmax [81]

Answer:

a. True.

Explanation:

Only primary and secondary alcohols can oxidise to give an aldehyde. But a weak oxidizing agent must be used to prevent formation of a carboxylic acid or ketone.

weak oxidizing agents: Chromyl chloride, silver/oxygen/500°C

take an example of ethanol:

 ${ \bf{CH _{3} CH_{2}OH \: \: \frac{Ag/O_{2} }{500 \degree C} > \: \:CH _{3} CHO}}$ 

 ${ \sf{CH _{3} CHO \: \: is \: ethanal}}$ 

By ozonolysis:

Here, reactants are Ozone gas, Carbon tetrachloride at a temperature (<20°C), ethanoic acid, zinc and water.

take an example of propanol:

if it undergoes ozonolysis, it gives ethanal and methanal.

5 0

3 years ago

Read 2 more answers

Suppose that you have a 60.0% solution of NaOH. How many milliliters of water must be added to 30.0 mL of this solution to prepa

defon

Answer:

21.4 ml (second choice)

Explanation:

1) Data:

a) C₁ = 60.0% (initial solution)

b) V₁ = 30.0 ml (initial solution)

c) C₂ = 0% (pure water)

d) V₂ = ? (pure water)

e) C₃ = 35.0% (final concentration)

2) Formula:

C₁V₁ + C₂V₂ = C₃V₃
V₁ + V₂ = V₃ (assuming volume addtivity)

3) Solution:

a) Substitute values in the first formula:

60.0% × 30 ml + 0 = 35% (30 ml + V₂)

b) Solve the equation (units are supressed just to manipulate the terms)

18 = 10.5 + 0.35V₂

0.35V₂ = 18 - 10.5 = 7.5

V₂ = 7.5 / 0.35 = 21.4 ml ← answer

3 0

4 years ago

Mention three scientist that defined acid

kirill [66]

Answer:

1. Svante Arrhenius

2. Johannes Nicolaus Brønsted and Thomas Martin Lowry

3. Gilbert N. Lewis

Explanation:

The scientist mentioned above researched and made their tested hypothesis available for further research to be built on them and they do these researches to help human understanding of the field and therefore improve knowledge.

Through their different definitions of acid which includes the ability of hydrogen ion (H+) to be produced when a substance is separated from water, the ability of acid to donate a proton (H +), It can be concluded that acids contain hydrogen and they have the ability to donate that (H +) to other substance.

6 0

3 years ago

when 6.25 grams of pure iron are allowed to react with oxygen , a black oxide forms. if the product weighs 8.15 g, what is the e

erik [133]

We are given with the mass of pure iron that reacts with oxygen to form an oxide which has a given mass as well. the mass of oxygen reacted is 8.15-6.25 g or 1.9 grams. THen we convert the mass of the reactants to moles. Iron is equal to 0.1119 moles and oxygen is equal to 0.1188. We divide each number to the less amount. Hence iron is 1 and oxygen is approx 1. The empirical formula hence is FeO or ferrous oxide or Iron (II) oxide.

5 0

3 years ago

the covalent compound formaldehyde forms when one carbon atom, two hydrogen atoms, and one oxygen atom bond. write a chemical fo

tino4ka555 [31]

Formally CH2O OR HCHO

8 0

4 years ago