20 POINTS AND BRAINLIEST OLEASE HELP
d. Given the orbital configuration of phosphorus, explain why phosphorus
forms 3 bonds in molecules such as PH3 and PC13. (1 point)
Answers
Answer:
The reason why phosphorus usually forms 3 bonds is because of its valence electrons. Phosphorus has 5 valence electrons and due to the octet rule, it will strive to gain 3 more in order to fill it outer shell and become stable. PH3 and PCI3 are great examples of this. In the compound PH₃, The phosphorus atom is in a covalent bond to three hydrogen atoms. Each of the three hydrogen atoms share their one valence electrons with phosphorus, and the phosphorus atoms shares one electron with each hydrogen atom. In the compound PCl₃, one phosphorus atom shares one electron with each chlorine atom, and each chlorine atom shares one electron with phosphorus. Note that each of these compounds are covalent bonds. As show, phosphorus forms 3 bonds because it needs 3 more electrons to become stable.
Related Questions
What is the Molarity of a Ca(OH)2 solution if 30.0mL of the solution is neutralized by 26.4mL of 0.25M HCI
solution?
Answers
Answer:
0.11M
Explanation:
What is the Molarity of a Ca(OH)2 solution if 30.0mL of
the solution is neutralized by 26.4mL of 0.25M HCI solution?
1L (1000 ml) of the HCl contains 0.25 moles of H ion
26.4 ml contains ( 26.4 X0.25/1000) moles of H ion ion
=0.0066 moles H ion
2HCl +Ca (OH)2-----> 2H2O +CaCl2
SO 2 H IONS NEUTRALIZE 1 Ca(OH)2 MOLECULE
00066 moles H ion neutralize 0.0033 moles Ca(OH)2
the 0.0033 moles are distributed over 30 ml, so the concentration of the
Ca(OH)2 IS 0,0033/(30/1000) =0.11 moles/liter or 0.11M
PLZ HELP!!
Why do you think only one material is able to pass through the membrane? *think about what kind of materials can diffuse through the membrane*
Answers
Sana maka tulong
Here is a picture that might help :)
WILL MARK AS BRAINLIEST IF CORRECT
Answers
[tex]\huge\bold{\purple{\bold{⚡Q16. B⚡}}} [/tex]
Because: The balanced equation is - 2BrF5--->Br2+5F2[tex]\huge\bold{\orange{\bold{⚡Q17.A,C,E⚡}}} [/tex]
A because 2 is in subscriptNot B because there are 3 atoms of oxygen in ozone, not in oxygen. C because 3 indeed is its coefficient Not D because 3 is coefficient not subscriptE is trueNot F because 3 is a coefficient, not 2Now experiment with the simulation. Send waves of various sizes at the three houses. See how large a wave has to be to destroy each kind of house. Write down your observations.
Answers
Answer:
Brick House: 22 feet
Wood House: 10 feet
Straw house: 5 feet
Explanation:
Look at the window on the left side of the simulation. It shows the reaction A + BC ⇌ AB + C. How does this reaction differ from the reaction by which ammonia is synthesized?
Answers
Answer:
A + BC → AB + C "single replacement reaction" while ammonia synthesis is a "synthesis reaction".
Explanation:
A single replacement reaction, is a reaction by which one element replaces an/other element in a compound.
It can be represented generically as: A + B-C → A-C + B This will most often occur if A is more reactive than B, thus giving a more stable product.
A synthesis reaction is a type of chemical reaction in which two or more simple substances combine to form a more complex product. The reactants may be elements or compounds, while the product is always a compound.
Example: ammonia synthesis,
N₂ + 3H₂ ⇄ 2NH₃
How many electron regions is in a nitrate ion using molecule geomerty
Answers
When forming an ionic bond, how does the configuration of valence electrons change
Answers
Answer:
Ionic bonds are a class of chemical bonds that result from the exchange of one or more valence electrons from one atom, typically a metal, to another, typically a nonmetal. This electron exchange results in an electrostatic attraction between the two atoms called an ionic bond.
Explanation:
Answer:
The electrons are transferred from one atom to another. The atom that loses electrons becomes positive.
Explanation:
I don't really understand what form of an answer you need but I hope this helps?
How does the equation below support the idea that matter is not created or destroyed?
6H20 + 6CO2 -----> C6H12O6+ 602
Answers
Answer:
The reaction 6CO2 + 6H2O ---> C6H12O6 + 6O2 is the chemical equation for photosynthesis. In this reaction, carbon dioxide and water
Explanation:
give me brainlest please
High temperature refrigeration is that produced by:
Answers
Answer:
. an air-conditioning system
the periodic table is written in order of ?
Answers
Answer:
increasing atomic number
Explanation:
I am guessing that means the number of atoms in a chemical or whatever is on a periodic table
identify ways to reduce the risk of liquid bumping while heating.
Answers
The most common way of preventing bumping is by adding one or two boiling chips to the reaction vessel. However, these alone may not prevent bumping and for this reason it is advisable to boil liquids in a boiling tube, a boiling flask, or an Erlenmeyer flask.
what is the difference between thermal energy and heat ?
Answers
There is really no difference thermal energy and heat are pretty the same thing.
Answer:
Thermal energy refers to the energy contained within a system that is responsible for its temperature. Heat is the flow of thermal energy.
I need help with this
Answers
Answer:
I think that 142.5 is the answer.
what is the volume of the graduated cylinder what is the volume of the graduated cylinder
Answer real 100% Graduated cylinders commonly range in size from 5 mL to 500 mL. Some can even hold volumes of more than a liter.
On what two days would the UK, Chile, South Africa, and Japan have an equal amount of day and night? O Winter Solstice and Summer Solstice 0 Spring Equinox and Fall Equinox 0 Fall Equinox and Summer Solstice O Winter Solstice and Spring Equinox
Answers
PLEASE HELP ASAP
Question 2 of 10
Which is required for karst topography to form?
A. Limestone
B. Basalt
C. Quartz
O D. Granite
Answers
Answer:
Limestone
Explanation:
Limestone is required , hope it helps :)
A is the answer
Answer: Karst is a topography formed from the dissolution of soluble rocks such as limestone, dolomite, and gypsum. It is characterized by underground drainage systems with sinkholes and caves
Ice waters melt to form liquid water The water spreads out to match the shape of its container after heating on the stove the water begins to boil and change into steam which statement is true about this process
Answers
Answer:the water starts to boil and creates steam
Explanation:
Erosion and weathering _____.
are usually slow processes
can only happen in dry climates
do not change landforms
do not significantly change Earth's surface
Answers
Erosion and weathering does not just occur in dry climates, it significantly changes landforms as well as the Earths surface, therefore the answer is A.
Muscle Activity
A
B
с
8. The flow of energy through an ecosystem
Sun Food ATP
involves many energy transfers. The diagram
below summarizes the transfer of energy that
eventually powers muscle activity. The process of cellular respiration is
represented by
a. arrow A, only
c. arrow B, only
b. arrow C, only
d. arrows A. B. and C
Answers
Explain the different types of chemicals?
Answers
Sodium hydroxide, bromine, acid, nitric acid, Acetone, Perchloric acid, Hydrofluoric acid, Alkali
how does an indicator work
Answers
Answer: Indicators are substances whose solutions change color due to changes in pH
Explanation:
Answer:
EXPLANATION
Explanation:
[not sure exactly what you mean by indicator but here's my very basic answer lol] They are substances that change color due to changes in pH levels.
Calculate how many moles of potassium (K) are present in a sample of 8.12x10^23 atoms of K
Answers
Answer:
1.35 moles
Explanation:
Calculate how many
of potassium (K) are present in a sample of 8.12x10^23 atoms of K
6.02 X 10^23 atoms are 1 mole. how many 6.02 X 10^23 are in
8.12 X 10^23
divide 8.12 X 10^23 into sets of 6.02 X 10^23
(8.12 X 10^23)/(6.02 X 10^23) =1.35 moles
How do you determine the name of an element using protons, neutrons, and electrons?
Answers
Answer:How do you determine the name of an element using protons, neutrons, and electrons?
By knowing the number of protons, you know the atomic number. If you know the atomic number you know which element it is in the Periodic Chart. A good Periodic chart should give you enough information to determine the name of the element.
Explanation:
please mark me as brainliest
If 5 g is dissolved in 100 mL of solution, what is the percentage of the solution?
Answers
Answer:
tobacco
Explanation:
Which state(s) of matter is/are easily compressible? Select all that apply
solid
liqued
gas
Answers
Answer:
gas is the answer
Explanation:
gasses are characterized by having no definite shape or volume.
answer asap please!!!!!!!!!!!!!!!!!!!!!
Answers
Answer: c.
Explanation: Because it will increase temperature on thermometer y will decease.
Liquid water (H2O) is formed when two gases, hydrogen (H2) and oxygen (O2), react. Why are the properties of water different than those of the reactant gases?
Answers
Answer:
Liquid water (H2O) is formed when two gases, hydrogen (H2) and oxygen (O2), react. ... The difference in the properties of water can be attributed to physical changes to the hydrogen and oxygen atoms on a subatomic level. The properties of the gases are combined to give water its properties.
Explanation:
I hope this helps
have a great day:)
good luck!
What is true about wind?(1 point)
Wind can only be warm.
Wind can only be warm.
Wind cannot cause things to move.
Wind cannot cause things to move.
Wind can be still.
Wind can be still.
Wind is always safe.
Wind is always safe.
Answers
Answer:
safe? I guess it to me
Answer:
I think c.
Explanation:
I am not sure tho
口
10. Which describes an element?
O They can combine with other elements to form atoms.
They were created in the Earth's core.
O They cannot be broken down any further.
O They were all discovered at the same time.
Someone just help me fr UWU
Answers
Answer:
They were created in the Earth's core.
The rest make no sense
is stretching a rubber band endothermic or exothermic
Answers
Answer:
exothermic
Explanation:
take a rubber band between the first two finger of each hand
stretch it, release, stretch is release over and over fast
put the rubber band on you cheek and feel the heat
You RELEASED HEAT, HEAT CAME OUT, HEAT EXITED THE RUBBER
so the process is EXO(EXITS)-THERMIC (HEAT)
What is an observation of matter that is measured without changing the identity of the substance.
a. A physical Property
b. A chemical property
c. A physical change
d. A chemical change.
Answers
A physical property is a characteristic of a substance that can be observed or measured without changing the identity of the substance. Physical properties include color, density, hardness, and melting and boiling point.
Explanation:
Physical Property. have a great day..
