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1 year ago

How many valence electrons does magnesium (Mg) have?Question options:A) 6B) 2C) 12D) 0

Chemistry

1 answer:

wel1 year ago

4 0

INFORMATION:

We must find the number of valence electrons for magnesium

STEP BY STEP EXPLANATION:

In order to know the number of valence electrons for Mg, we need to locate the element in the periodic table

Since Mg is in the second group of the periodic table, it has two valence electrons.

ANSWER:

B) 2

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Abbreviation for mole

Sedbober [7]

Answer:

Maybe mol

Explanation:

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3 years ago

An acid is used to bring the pH of a solution from pH 9 to pH 6. How many times more acidic is the final solution than the initi

Papessa [141]

Answer:

The final solution is 1.5 times more acidic than the initial solution

Explanation:

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3 years ago

Which reagents are appropriate to carry out the conversion shown?

lesantik [10]

A reagent us a chemical substance applied in a chemical reaction to bring about a change in the chemical reaction process. The reagent that is appropriate to carry out the conversion is Ethanol (CH3CH2OH).

Organic Reactions are reactions taking place in organic compounds and they can take various forms such as electrophilic addition reaction or nucleophilic substitution reactions.

From the assumed diagram below, the reaction takes place in an unimolecular nucleophilic reaction SN1 mechanism in which a racemic mixture produce an organic compound and an enantiomer.

For the reaction to take place, the best organic reagent to us is known as ethanol (CH3CH2OH). This is because the organic reagent is a solvent that acts as a Nucleophile.

In the reaction, bromine (Br) is the leaving group, after it detaches from the racemic compound, it forms a carbonation in which the Ethanol CH3CH2OH attacks at the carbonation site.

Therefore, we can conclude that the Reagent necessary to carry out the conversion is Ethanol (CH3CH2OH)

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2 years ago

an ant releases a chemical when it dies, and its fellows then carry it away to the compost heap. apparently the communication is

Alenkinab [10]

The conclusion based on the premises is that communication is highly effective.

<h3>What are pheromones?</h3>

Pheromones are chemical substances that are released by animals and which these animals use to communicate with other animals. Some examples of animals that release or produce pheromones are ants and bees.

The pheromones produced by the ants are used to communicate with other ants.

In the given questions, two premises are given about ants:

Premise 1: an ant releases a chemical when it dies, and its fellows then carry it away to the compost heap.

Premise 2: a healthy and painted with the deadly chemical will be dragged to the funeral heap again and again.

The conclusion based on the above premises is that the communication between ants is effective.

In conclusion, ants use pheromones in communication.

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Note that the complete question is given below:

An ant releases a chemical when it dies, and its fellows then carry it away to the compost heap. The communication is highly effective; a healthy and painted with the deadly chemical will be dragged to the funeral heap again and again.

What are the premises and conclusion?

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2 years ago

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Andrej [43]

Answer:

carbon dioxide gas

Explanation:

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3 years ago