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3 years ago

History of Aluminum

Chemistry

2 answers:

MrRa [10]3 years ago

7 0

Answer:

an English chemist, who, in 1808, discovered that aluminium could be produced by electrolytic reduction from alumina (aluminium oxide), but did not manage to prove the theory in practice.

Explanation:

solniwko [45]3 years ago

5 0

Answer:

Aluminium was named after alum, which is called 'alumen' in Latin. This name was given by Humphry Davy, an English chemist, who, in 1808, discovered that aluminium could be produced by electrolytic reduction from alumina (aluminium oxide), but did not manage to prove the theory in practice.

Explanation:

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5. HOW do you think ideas like the periodic table get widely known and accepted in the scientific

Paladinen [302]

The periodic table is organized in such a way that they provide a great deal of information about elements and how they are related to each other.

Explanation:

The periodic table is used for better understanding of patterns and relationships between elements. With the elements arranged in the periodic table allow us to make synthetic elements.

This periodic table helped scientist to discover the elements that are needed for humans to survive. For example plants and animals need elements to grow and chlorine helps animals to digest food and in humans iron helps to carry oxygen around body and chlorine that convert the sun energy to food.

It provides information about elements and how they are related to each other in easy method. They are used to predict the properties of elements.

Thus, the Changes in periodic table is from the creation of new chemical elements and it helps the society in various applications that are used in mining, engineering and other occupations.

4 0

3 years ago

40.0 ml of an acetic acid of unknown concentration is titrated with 0.100 M NaOH. After 20.0 mL of the base solution has been ad

kirill115 [55]

Answer:

0.5 M

Explanation:

We have to start with the reaction between NaOH and CH3COOH:

$CH_3COOH~+~NaOH->CH_3COONa~+~H_2O$

We will have a 1:1 ratio between the acid and the base. The next step then would be the calculation of the moles of NaOH and his convertion to moles of CH3COOH.

$20~mL~\frac{1~L}{1000~mL} ~=~0.02~L$

$mol~=~0.1~M*0.02~L=0.02~mol~NaOH$

$0.02~mol~NaOH~\frac{1~mol~CH_3COOH}{1~mol~NaOH}=~0.02~mol~CH_3COOH$

The final step is the calculation of the concentration of the acid.

$M=\frac{0.02~mol~CH_3COOH}{0.04~L}=~0.5~M$

Due to the Ka value we can use the acetic acid as a strong acid.

6 0

3 years ago

Why are bacteria a necessary part of the nitrogen cycle

Black_prince [1.1K]

I think it is to help with plant growth, and converting nitrogen to ammonia.

6 0

3 years ago

ASAP PLEASE HELP! how can you tell that the solution contains a weak acid?

Flura [38]

Answer:

This is week acid because it is not dissociated to its ions in water

Explanation:

6 0

3 years ago

Read 2 more answers

Pls explain ionization energy

Oliga [24]

Answer:the energy required by an atom to lose or gain electron (e-) to be able to form ions.either cation or anion.

Explanation:

to lose or gain e- an atom has to donate or receive e- to to this it requires the more easily it can lose an electron the more electro positive it is and the more easily it gains electron the more electro negative it is.

4 0

3 years ago

History of Aluminum​

History of Aluminum