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3 years ago

NEED HELP\ I GIVE BRAIN

Chemistry

1 answer:

Mandarinka [93]3 years ago

4 0

Answer:

The first true or false Question, I believe to be true and the second one I think it is False

Explanation:

1. The Gulf of Mexico's water is very warm.

2. It tropical meaning a wet so it couldn't form over Dry land.

Hope this Helps :)

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Nitrogen monoxide is produced by combustion in an automobile engine. What volume of oxygen gas is required to react completely w

Dmitrij [34]

Answer:

qwertyuiopasdfghjkl;Zxcvbnm,zxfbfa

Explanation:

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3 years ago

Which substance can not be decomposed by a chemical change?

slamgirl [31]

The answer is (2) Copper. Because copper is consist of atom. If it is decomposed, the atom will be changed. While chemical change is just the break down and form of chemical bonds between atoms.

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3 years ago

Classify the following substituents according to whether they are electron donors or electron acceptors relative to hydrogen by

igor_vitrenko [27]

Species that have a lone pair of electrons often donate electrons by resonance while substituents that are electron deficient take away electrons by resonance.

<h3>What is resonance?</h3>

The term resonace has to do with the movement of electron pairs in a molecule. Inductive effects has to do with the drawing of electron density towards an atom or bond.

The two effects depends on the nature of a substituent. For instance, species that have a lone pair of electrons often donate electrons by resonance while substituents that are electron deficient take away electrons by resonance.

The question is incomplete hence the exact nature of the substituents can not be determined.

Learn more about resonance: brainly.com/question/23287285?

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2 years ago

Read 2 more answers

You believe you have cracked a secret code that uses elemental symbols to spell words. The code uses numbers to designate the el

Stells [14]

Explanation:

Atomic numbers for neutral atoms are the same as the number of electrons. The number of electrons are used in writing the subshell notation where we can see the highest princpal quantum number(n).

In order to solve this problem, a good knowledge of the periodic table and shell notation is required.

For example;

Given a number 5;

We know the number is made of both the atomic number of the element and the highest quantum number.

It is easier for us to know the highest quantum number from the shell notation:

shell notation 1s²2s²2p¹

highest principal quantum number is 2

We are left with atomic number 5-2, which is 3

The element is therefore Li.

Part A. 5, 30, 58, 56, 99, 79, 19, 98, 9

Li Fe I Sb U Ta S Pa N

Part B. 9, 99, 30, 95, 19, 47, 79

N U Fe Ra S Mo Ta

Learn more:

s-orbital brainly.com/question/9288609

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3 years ago

How many moles are in 155 grams of aluminum

Aliun [14]

Answer:

wads

Explanation:

wadsdw

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3 years ago