When the zinc atom breaks its bonds with chlorine to make bonds with copper, is it a chemical or physical change?

The pair of elements which will form covalent bonds with each other are Si (Silicon) and N (Nitrogen). Hence the correct option is (B).

A covalent bond is a chemical bond that involves the sharing of electrons to form electron pairs between atoms.

These electron pairs are known as shared pairs or bonding pairs, and the stable balance of attractive and repulsive forces between atoms, when they share electrons, is known as covalent bonding.

Silicon and nitrogen forms strong covalent bond . This stable covalently bonded material does not readily sinter and cannot be heated over 1850⁰C as it dissociates into silicon and nitrogen.

Therefore, The pair of elements which will form covalent bonds with each other are Si (Silicon) and N (Nitrogen). Hence the correct option is (B).

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Answer:

cow female

Explanation:

Answer:

Distance

Explanation:

The light-year is a measure of distance, not time. It is the total distance that a beam of light, moving in a straight line, travels in one year.

Answer:

distance pooh <3

Explanation:

Answer:

6.39 × 10^23 kg (0.107 M⊕)

Explanation:

Answer:

That atom will not contain any charge because one negative charge of single electron and one positive charge of single proton are neutralized by each other.

Answer:

The bonds between nitrogen and oxygen are covalent bonds made from sharing electron pairs. The electronegativity of oxygen is 3.5.

Answer: The video compared to things i've seen on TV seems much more stressful. On TV, they always seem pretty confident in what they are doing, but it never shows the training and how much work you have to go through to get to the end result. They always just take their time walking around and do lots of talking in TV shows when that's not the case at all in this video. It's get in and get out with as much evidence as possible. The TV show always has a successful ending when the hour ends, which is not the case in real life.

Answer:

3532.8

Explanation:

Answer: It’s Lower

What can you say about the pH of a carbonic acid solution compared to that of a sulfuric acid soloution with the same contention: Strong acids dissociate fully in water to produce the maximum number of [tex]H^{+}[/tex]ions. The pH levels of strong acids are smaller than those of low acids, which is why the reactions rates for strong acids are greater than the reactions of weak acids with products like metals, metal carbonates, etc. Meaning The pH Level is lower.

Answer:

There are actually two.

Explanation:

When water freezes it turns to ice however it still has the molecular properties of water. Same thing when it evaporates.

Answer:

3)The formula for speed is

speed=distance ÷ time

distance is in metres (m)

and time is in seconds (s),

so the units will be in metres per second (m/s).

4)to solve for distance use the formula for distance d = st, or distance equals speed times time. ... You can use the equivalent formula d = rt which means distance equals rate times time. distance = rate x time.

5)To solve for time use the formula for time,

t = d/s which means time equals distance divided by speed.

6)The SI unit of speed is the metre per second, but the most common unit of speed in everyday usage is the kilometre per hour.

please mark me as a brain list

Answer:

Drinking water can be produced from waste water and from lakes but the difference is in the difficulty of producing water which we can consume.

Drinking water should be clean and toxic free so that if does not affect the human body. Waste water carry more toxic matter in comparison to lake water that's why, producing drinking water from waste water takes more time, expensive and difficult.

So, producing drinking water from waste water is more difficult as it require the removal of more toxic matter than water in lakes.

Answer:

8.25 g HNO3 (please correct me if I'm wrong!)

The correct answer is 7.31 g HNO₃.

Nitric acid is used for the production of ammonium nitrate, a major component of fertilizers. It is also used for producing explosives like nitroglycerin and trinitrotoluene (TNT) and for oxidizing metals.

Please check the attached file for an explanation.

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Answer:

Three lithium and one nitrogen atoms

Explanation:

Yes carbon dioxide found in each case

Answer:

being responsible is owing up to the possible

consequences of your decision whether it was right or wrong.

communication is a two way process in which there is a messenger and receiver

one of the ways by which a person could be responsible is by saying 'I'

in all the things he would say, instead of 'we'

for example , " We don't like the way you acted a while ago " , change it to i don't like tye way you acted a while ago.

here u r establishing ownership on the things you want to say to the person

Acceptance of Responsibility creates more rapport, increases teamwork, increases honesty, and makes each party look at things from a position of rationality and mutual understanding.

When a person accepts responsibility for their actions and or tasks or their work or their organization, it means that they have elected to become more accountable, looking at things from what they can do to help achieve the collective goal rather than their personal aspirations.

This reduces conflict as most conflicts are borne out of self-interests.

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This formula is wrong because a substituent can't attach with 1st carbon in chain or the here the no. of carbon in carbon chain is 8

Answer:

moon obviously

Explanation:

........

Answer:

A number is right I think

Answer:

A.

beryllium fluoride

I hope it is helpful...

Answer:

hi this my first day, also the answer is moving one period :)

Explanation:

In chemistry, a solution is a special type of homogeneous mixture composed of two or more substances. In such a mixture, a solute is a substance dissolved in another substance, known as a solvent. ... The term "aqueous solution" is used when one of the solvents is water.

Explanation:

I Would Determine Mass,Volume And Weight

Answer:

Enthalpy is a property of a thermodynamic system, defined as the sum of the system's internal energy and the product of its pressure and volume, H = U + pV

Explanation:

Answer:

ABC

Explanation:

Answer:

Filtration separates solids of different sizes.

Distillation takes advantage of differences in boiling points.

Evaporation removes a liquid from a solution to leave a solid material.

Answer:

B

the humidity is the % of water in the air and it is out of 100% of the air. so 10/100 is low

Answer:

B

Explanation:

30%-50% is considered moderate. Anything below 30% is considered dry, anything above 50% is considered high. I hope this helps!