In the lewis structure for a molecule of ammonia (NH3), how many lone pairs of electrons does nitrogen have? PLEASE HELP
Answers
d) 0.
5 out of 8 would be paired already because it has 5 electrons, then the other 3 would be filled by the 3 hydrogens.
Related Questions
What do you call a rock that cooled rapidly outside a
volcano?
Answers
Explanation:
intrusive rocks.....
.
In what situation does water undergo a physical change?
Answers
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.
Please help me with this
Answers
Balance the following chemical equation:
i need F
Answers
Answer:
L2 add a for NAL add a 2 then for the first NA2 put a 4 and then the second NA2 put a 2 and it should be good
Explanation:
Which of the following pairs of elements will form covalent bonds with each other? PLEASE HELP
Answers
The pair of elements which will form covalent bonds with each other are Si (Silicon) and N (Nitrogen). Hence the correct option is (B).
What is Covalent Bond ?
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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earth is one of the planets in the
Answers
Answer:
moon obviously
Explanation:
........
Select the correct answer.
Beryllium (Be) and fluorine (F) combine to make the compound BeF2. What is the chemical name for this compound?
A.
beryllium fluoride
B.
beryllium fluorine
C.
beryllide fluoride
D.
beryllide fluorine
Answers
Answer:
A number is right I think
Answer:
A.
beryllium fluoride
I hope it is helpful...
two difference between simple cell and dry cell
Answers
Explanation:
Simple cell has liquid chemicals and it is difficult to carry from one place to another. Dry cell has no solution. So, it is easier to carry it from one place to another and there is no risk of spilling acid from the dry cell.
A light-year is a way to measure ______ in space.
O time
Odistance
PLS HELPPPPPPPPPPPPPPPPPPPPPPPPPLLLLLPL
Answers
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:
What is the empirical formula of a compound that contains 28% iron, 24% sulfur, and 48% oxygen by mass?
Answers
Answer:
Fe2S3O12 would be the closest Answer
Explanation:
Which of these factors is involved in earthquake formation?
A. plates getting larger
B. rocks breaking
C. stress that decreases
D. faults that remain stationary
Answers
Answer:
B
Explanation:
Edge 2023
You want to compile a list of properties of a substance , but you don't have a way to measure mass it volume. What kinds of properties can you determine without knowing the amount of matter in the sample?
Answers
Explanation:
I Would Determine Mass,Volume And Weight
explain why it is more difficult to produce drinking water from waste water than from water in lakes
Answers
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.
How many grams of nitric acid, HNO3, are required to neutralize (completely react with) 4.30 g of Ca(OH)2?
Answers
Answer:
8.25 g HNO3 (please correct me if I'm wrong!)
The correct answer is 7.31 g HNO₃.
What is nitric acid used for?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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A property is a characteristic that can be used to identify a substance. Properties can be ______ or _______.
Answers
Answer:
a list of characteristics that can be used to identify a substance include color, odor, taste, density, melting point, boiling point, conductivity, and hardness.
Answer:
physical or chemical
Explanation:
A physical property is a characteristic of a substance that can be observed or measured without changing the identity of the substance while a chemical property describes the ability of a substance to undergo a specific chemical change.
There are three bulbs powered by a battery. What will happen if the middle light burns out.
Answers
Answer:
ABC
Explanation:
collect some of chalk, limestone, marble, eggshells and seashells and mix them with a dilute acid. pass the gas produced into a small amount of limewater to test for carbon dioxide. is carbon dioxide gas produced in each case.
Answers
Explanation:
Yes carbon dioxide found in each case
The surface currents of Earth’s oceans are most likely created by which of the following?
Answers
Answer:
global wind patterns. the rotation of the Earth. the shape of the ocean basins.
Explanation:
Which of the following DOES NOT belong to the group?
A.eyes
B.mouth
C.large intestine
D.stomach
Answers
Answer:
eyes
Explanation:
It is because the mouth, large intestine and stomach comes in the digestive system abd eyes doesn't.
HOPE THIS HELPS
it doesn’t have anything to do w the others
Explain how Newton's idea about inertia has helped in astronomy?
o We can learn that objects in space like asteroid will keep its path unless a different force is applied to it
The Law of Inertia will help us discover distant galaxies
Inertia is used to help identify distance planets.
o We can figure out the size of far away planet through the Law of Inertia.
NEXT QUESTION
ASK FOR HELP
Answers
Answer:
the answer is A because when something is going straight it wont change unless its acted upon by a force
Explanation:
it is also called solution
Answers
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.
What is the slope of the line?
Answers
Describe how the calcium atom and the oxygen atop form calcium oxide
Answers
Explanation: Formula and structure: Calcium oxide chemical formula is CaO and its molar mass in 56.0774 g mol-1. The molecule is formed by the calcium cation Ca+2 and the oxygen anion O-2, which form a ionic bond. The calcium oxide ionic lattice is cubic and similar to NaCl lattice, with an ion surrounded by 6 opposite charge-ion.
If an atom contains one electron and one proton will it carry any charge or not?
Answers
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.
If N and O were to bond, the difference in electronegativity would be
and we would expect the bond to be
ionic, covalent)
Answers
Answer:
The bonds between nitrogen and oxygen are covalent bonds made from sharing electron pairs. The electronegativity of oxygen is 3.5.
Write a net ionic equation for the neutralization reaction of acid with a hydroxide base. (Include phase symbols)
Answers
Answer:
salt + water. It is called the ionic equation for neutralisation. the acid to form a salt solution.
Explanation:
So what you end up with is you always end up H+ plus OH- yields H2O, because HCl, and NaOH, since they're strong, they fully dissociate. So the Na+, and the Cl - are spectator ions. So with a strong acid and strong base, the net ion equation is always H+ plus OH- yields H2O.
What does 10% humidity in a weather report indicate?
A)the level of humidity is high.
B)the level of humidity is low.
C)the level of humidity is moderate.
D)the air can not hold anymore water.
Answers
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!
What chemicals must be cycled through a Martian environment in order for the planet to be habitable for life? Describe how scientists intend to make those resources available in such a harsh environment.
Answers
PLZ HELP SCHOOL STARTS TMR AND I NEED THIS DONE BY 2NIGHT. ILL GIVE BRAINLIEST
Answers
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.
What is the man’s weight on Mars where the acceleration due to gravity is 3.7 m/s2?
Answers
Answer:
6.39 × 10^23 kg (0.107 M⊕)
Explanation: