Chemistry High School

Lokesh is sawing boards to make a deck. What is the area of the deck?
12 ft
9 ftil
6 ft
8 ft
OA. 198 square feet
O B. 234 square feet
O C. 207 square feet
O D. 171 square feet

Lokesh Is Sawing Boards To Make A Deck. What Is The Area Of The Deck?12 Ft9 Ftil6 Ft8 FtOA. 198 Square

Answers

Answer 1

Answer:

Explanation:

171

Related Questions

What part of the isotope notation help you determine the number of electrons within an isotope?

Answers

It’s b got it on test

IM IN A TEST NEED HELP ASAP
When 2.00 mol of the acid react with sodium carbonate, 1.00 mol of carbon dioxide is formed.Calculate the volume of carbon dioxide formed, in cm 3 , from 8.00 g of the acid at room temperature and pressure.

Answers

good luck on ur test i wish i could help u more but im only in 7th grade :/ and i dont know that yet, so sorry again! :(

Explanation:

What's the equation used to calculate how far a wave has traveled?

Answers

For calculating the distance that sounds travels, distance = velocity x time. Therefore, the distance between the sensor and the object is one half the distance traveled by the sound wave.

what is the most important part of an Atom? Why?

Answers

Answer:

I would say proton and electron are the two most important subatomic particles in an atom

Explanation:

The number of protons inside a nucleus must equal to the number of electrons outside of the nucleus. This number determines all the chemical properties of the atom, which governs the behaviors of all matters in our world.

Answer:

I would say proton and electron are the two most important subatomic particles in an atom. The number of protons inside a nucleus must equal to the number of electrons outside of the nucleus. This number determines all the chemical properties of the atom, which governs the behaviors of all matters in our world.

Explanation:

what is the orbital diagram for manganese?

Answers

[Ar] 3d5 4s2 I hope that helps ❤️

Explanation:

Oxidation States. +2,3,4,6,7

Electrons Per Shell 2 8 15

Electron Configuration [Ar] 4s2 3d5

1s2 2s2 2p6 3s2 3p6 4s2 3d5

How many grams of lithium sulfide (Li2S) are in 275 g of a 16 % aqueous solution of Li2S?

Answers

Answer:

600 mAh·g−1

Explanation:

i hope this is good let me know if its wrong

What is the quantity of atoms in KMnO4 ?

Answers

Answer:

Potassium permanganate has a molar mass of 158.04 g/mol. This figure is obtained by adding the individual molar masses of four oxygen atoms, one manganese atom and one potassium atom

Explanation:

Potassium permanganate has a molar mass of 158.04 g/mol.

Write a balanced symbol equation for the incomplete combustion of hexane (C6H14) to produce soot.

Answers

Answer:

I77

Explanation:

The term used to describe the Moon phases as the light spreads across the surface of the moon or grows.

Answers

Answer:

Explanation:

New moon

Waxing crescent moon

First quarter moon

Waxing gibbous moon

Full moon

Waning gibbous moon

Last quarter moon

Waning crescent moon

Answer: Waxing

Explanation: Waxing means is getting lighter.

Waning means its getting darker.

Can some right a paragraph about photosynthesis pls =))))))))))))))))))))))

Answers

Answer:

Photosynthesis is the process in which plants harness energy from the sun to make their own nutrition. The process converts light energy into chemical energy through cellular respiration.

Explanation:

Just to start you off. I hope it helps! (❛ ᴗ ❛)

Answer:

Photosynthesis is the process which a plant makes it's own food. The plant get energy from the sun and water from the soil. The plant lets the suns energy flow though so it touches all the parts that need it. When it get the water from the soil it goes into the stem and to the leaves. Photosynthesis is important because it benefits the air and us too. We can also help by put carbon dioxide. Photosynthesis is part the life cycle of a plant.

Explanation:

How many moles of Mg3(PO4)2 are in 350.00 grams of Mg3(PO4)2?

Answers

Answer:

1.3 moles/ 1.33150727 moles

Explanation:

350g x 1 mol/262.86g = 1.3 moles

The molar mass of Mg3(PO4)2 is 262.855 g/mol

Atomic weight of the parts:

Mg 24.3050   x 3 = 72.92

P 30.973762   x2 = 61.95

O 15.9994   x8 = 127.995

There are 262.855 grams in one mole, so  

350.00 g x (262.855g/1 mole) = 1.33 moles Mg3(PO4)2

How do astronomers observe and learn about celestial
objects?

Answers

Answer:

Astronomers use a number of telescopes sensitive to different parts of the electromagnetic spectrum to study objects in space. Even though all light is fundamentally the same thing, the way that astronomers observe light depends on the portion of the spectrum they wish to study.

Explanation:

HELP PLEASE | 15 POINTS Determine the number of valence electrons in each diagram shown below.

Answers

answer:

Cl = 7 valence electrons

Mg = 2 valence electrons

explanation:

in order to determine the valence electrons, just look at the outermost shell or the last shell. whatever number of electrons it has will be the number of valence electron

To balance a chemical reaction you can list all the atoms on the right and left, then count, and add coefficients until the reaction is balanced. Look at the reaction below. Choose the picture that shows a balanced chemical reaction for the reaction below.

Answers

Answer:

I think option 3 is correct

the metallic compound reduced to the metal by electrolysis is _____

please girls answer, because I think u r always right. ​

Answers

Answer:

Magnesium oxide

Explanation:

When magnesium reacts with oxygen, the magnesium atoms donate electrons to O2 molecules and thereby reduce the oxygen. Magnesium therefore acts as a reducing agent in this reaction. The O2 molecules, on the other hand, gain electrons from magnesium atoms and thereby oxidize the magnesium.

Cuando haces ejercicios abdominales estas realizando un trabajo. Si haces el mismo numero de abdominales en la mitad de tiempo que acostumbras, ¿como seria tu rendimiento en terminos de potencia comparandolo con el tiempo normal en que las haces?

Answers

Answer:

El rendimiento seria mayor ya que la potencia aumenta.

Explanation:

La potencia aumenta cuando determinado trabajo se realiza en menor cantidad de tiempo.

Why do we perform an experiment?

Answers

Answer:

Experiment plays many roles in science. One of its important roles is to test theories and to provide the basis for scientific knowledge. It can also call for a new theory, either by showing that an accepted theory is incorrect, or by exhibiting a new phenomenon that is in need of explanation.

Explanation:

Answer:

Explanation:

One of its important roles is to test theories and to provide the basis for scientific knowledge that we need to know. How are we supposed to know the answer to our question if we don't perform the experiment to test our question.

Boreal forests are characterized by _______ trees. A. Creosote b. Eucalyptus c. Coniferous d. Deciduous Please select the best answer from the choices provided A B C

Answers

Answer:

c

Explanation:

coniferous trees, Tianga also called Boreal forest biome (major life zone).

hope it's perfect.

Answer: C is correct.

How many particles are in 3.4 moles of HCl?

Answers

Answer:

The volume is 77 L.

Explanation:

where P is pressure, V is volume, n is moles, R is the gas constant, and T is temperature in Kelvins.

The current STP temperature is 0∘C or 273.15 K (used for gas laws), and the pressure is 105Pa, which most people write as 100 kPa (both pressures are equal).

2
Is the molecule with the formula Br
an element mixture or compound?
How do you know this?

Answers

Answer:

i do not know

Explanation:

NEED HELP! thank you!
The same element is present before and after a
O chemical change
O physical change
O chemical reaction
O none of these

Answers

Answer:

This is a physical change.

Explanation:

As long as the identity of the substance has not changed, and the element is present before and after, it is a physical change! (Ex: ice melting)

30. The more reactive halogen elements are able to replace the less reactive halogens from their com-
pounds. For example, if chlorine gas is bubbled
through a potassium iodide solution, elemental
iodine is produced.

Cl2(8) + Kl(aq) →12(s) + KCl(aq)

Calculate the mass of iodine produced when 2.55 g
of chlorine gas is bubbled through an excess amount
of potassium iodide solution.

31. Although we usually think of substances as “burn-
ing” only in oxygen gas, the process of rapid oxida-
tion to produce a flame may also take place in other
strongly oxidizing gases. For example, when iron is
heated and placed in pure chlorine gas, the iron
"burns” according to the following (unbalanced)
reaction:

Fe(s) + Cl2(8) ► FeCl3(s)

How many milligrams of iron(III) chloride result
when 15.5 mg of iron is reacted with an excess of
chlorine gas?

please help. this is due tonight. thanks!

Answers

Answer:

n=m/mr

n of cl2=0.0713mole

Form equation

cl2+k------- I2 s+kcl

1mole of cl=I moleof I2

0.0713mole of =x of I2

X mole of I2=0.0713

n=m/mr

0.0173=m/253.9

mass of I2=18.09g

what does appeal mean​

Answers

a act of law to remove

Answer:

as a verb it means make a serious or urgent request, typically to the public.

"police are appealing for information about the incident"

as a noun it means a serious or urgent request, typically one made to the public.

"his mother made an appeal for the return of the ring"

Explanation:

hope it helps

How do I write a Major Electron Level Notation in the ground state??

Answers

Electron configurations are written using the principal quantum number n, followed by the orbital (s, p, d, or f) with the total number of electrons written as a superscript. Example: 1s2 For writing ground state electron configurations, a few main steps should be followed.

(Element or Compound)
C2H30

Answers

Answer:

Compound

Explanation:

An element is just like Carbon by itself but when theres more than one element it is a compound.

Answer:

C2H3O is a compound as it is formed when three elementscarbon, hydrogen, oxygen) react together

Metal or Non-metal?
Potassium: metal
Fluorine:
Bromine:
Hydrogen
Beryllium:
Nitrogen

Answers

Answer:

Fluorine:non-metal

Bromine:non-metal

Hydrogen:non-metal

Beryllium:metal

Nitrogen:non-metal

The Theory of _________ states that new ocean crust is formed at ocean ridges where plates are diverging.

Answers

Answer- Seafloor spreading
i don’t know lol but i have to answer something


6. How many molecules are in 2.7 moles of carbon dioxide

Answers

Answer:

2.7×6.022×10^23

=16.594×10^23 moleclules

Explanation:

number of mol= 2.7

1 mol of any element=6.022×10^23

therefote 2.7 mol =2.7×6.022×10^23

=16.594×10^23

A mole is -6.022 • 10 to the 23 power of something.

So, saying you have a mole of iron atoms is like saying you have 6.022 • 10 to the 23 power iron atoms

There for you have 1.63 • 10 to the 24 power

How do you determine the charges on the ions in an ionic compound?

Answers

Answer:

To find the ionic charge of an element you'll need to consult your Periodic Table. On the Periodic Table metals (found on the left of the table) will be positive. Non-metals (found on the right) will be negative.

Explanation:

What is the electric configuration for phosphorus?

Answers

1s^2 2s^2 2p^6 3s^2 3p^3
That’s the electron configuration for phosphorus
Other Questions
Give an example of food and medicine that spread during global migrations. solve this and you'll get brainliest!! A customer in a store had two 50% off coupons. She tried to buy a purse with them, gave them to the cashierand explained that the two 50% off coupons should mean that she gets the purse for free. The cashierdisagreed and refused to give the purse for free. What discount should two 50% off coupons actually give at thestore? Please help I failed this lesson and I really dont wanna get held back again Directions: Read both articles on this worksheet and complete both tasks Task One: Fill out the Compare and Contrast Chart Task Two: Complete the paragraph on toneArticle 1: How Lift Offs Lift Our Spirits From the 1950s through the 1970s, astronauts were national heroes. Children dreamed of traveling through space. Adults looked to the moon with a sense of national pride. Those days couldand shouldreturn again. it is not hard to find arguments against space travel. It costs money. Its dangerous. We have enough problems on our own planet. If the same Americans search their hearts, however, the results are different. Deep within us, we all have similar desires. Space exploration fulfills all these desires. From the time we are small children we long to know what is in the next room, down the street, or in the next town. We are nomads, wanting to explore. We are detectives, trying to solve a mystery. We are students of life, seeking answers. The space program gives us a chance to be all those things and more. Even if we dont travel ourselves, the excitement of new discoveries would again feed our thirst for something new. In the early days of space travel, America had a goal. We wanted to reach space safely and quickly. The country responded spectacularly. Teamwork and creativity reached all-time highs. Students delved deeper into science and math hoping to contribute. Heroes stepped up to bravely accept challenges. We were attempting the impossible and determined to succeed. Think of the amazing things Americans would accomplish if that inspiration returned. Exploring space reminds us how small and fragile our planet truly is. It encourages collaboration with other countries which helps cultural differences disappear. It can reveal the effects of abusing natural resources. Looking at our Earth from a great distance gives us a unique view of our world and the effect we have upon it. Exploration of our solar system should continue not for science or power or money, but for the benefit of mankind. It gives us an outlet for our curiosity. It provides inspiration for our souls. It offers a perspective to help understand our place in the universe. The benefits are as vast as space itself. Article 2: The Sky Has No LimitsThe state of NASAs space program has been the subject of much speculation in recent years. Debates have raged among members of Congress, business owners, and the general public. the president has expressed his thoughts on numerous occasions as well. The conversations seem to boil down to one question: Do the benefits of space travel outweigh the cost? A logical look at the question makes the answer quite apparent. NASAs space program is worth preserving at any cost. Put simply, NASA creates jobs. Jobs, in return, help the economy. A single space project can employ hundreds of workers from high level, top security jobs to lower level, yet important role players. Scientists are assigned to solve problems. Engineers are contracted to build prototypes. Truckers are hired to transport materials. Large corporations are paid for contributions, earning profits so they may hire more employeesThe work of NASA also pays huge dividends for the environment. Studying Earth from space provides keen insight into many areas. Scientists monitor the ozone layer. They track the effects of global warming. They study patterns of dangerous storms. They test the possibility of space colonies. All of these activities offer hope to our increasingly overcrowded planet The work of NASA often leads to advances in technology. Solving the mysteries of space creates solutions that help elsewhere. The Jaws of Life save victims in car accidents. The technology came from NASA research. The artificial heart did, as well. The list goes on. Architects, athletes, and autoworkers have benefited from space-related discoveries. NASA has enhanced everything from shoes to food. You likely come into contact with something improved by NASA nearly every day. It is impossible to list all the benefits of a thriving space program. It is equally impossible to predict how many new benefits are within our grasp. To find them, we must keep reaching for the starsTask One: Now that you have read the two articles, complete the Compare and Contrast Chart. In the TOPIC box, enter the topic of the articles. In the SOURCE boxes, enter the title and author of each article. In the EVIDENCE boxes, enter the specific evidence each author uses to support the topic Remember to paraphrase the ideas from the text and to write in complete sentences Topic Source 1 Source 2 Evidence 1 Evidence 1 Evidence 2 Evidence 2 Evidence 3 Evidence 3 Metal or Non-metal?Potassium: metalFluorine:Bromine:HydrogenBeryllium:Nitrogen Selected transactions for Ayayai Corp. during its first month in business are presented below. Sept. 1 Issued common stock in exchange for $18,000 cash received from investors. 5 Purchased equipment for $8,500, paying $2,500 in cash and the balance on account. 8 Performed services on account for $18,000. 14 Paid salaries of $1,200. 25 Paid $2,500 cash on balance owed for equipment. 30 Paid $500 cash dividend.Required:Therow's chart of accounts shows Cash, Accounts Receivable, Equipment, Accounts Pay- able, Common Stock, Dividends, Service Revenue, and Salaries and Wages Expense. a. Prepare a tabular analysis of the September transactions. b. Journalize the transactions. Do not provide explanations. c. Post the transactions to T-accounts. Which change will cause more CO2 to form in a closed container? Answer the following questions about complementary angles. Complementary angles are 2 angles that add up to 90 degrees.1=20 so 2=3=48 so 4=5=15 so 6=please help will give brainliest How does the digestive system work with the muscular system?A: Digestive System gets nutrients (good) from food and hands it over to the blood and Circulatory System then carries thosenutrients where they need to go.B: It doesn'tC: The enteric nervous system's network of nerves, neurons and neurotransmitters extends along the entire digestive tract - fromthe esophagus, through the stomach and intestines, and down to the anus.D: The muscular system allows for movement within the body, for example, during digestion or urination. ????How can you turn a claim into a multi-paragraph speech? All of the above.By researching more evidence to support your position.By using appeals that make you sound convincing (i.e., ethos, pathos, logos). By adding in rhetorical devices. d Mexico City is located on the city on the site of the great ______ empire. What is the measure of 22?Angles are not necessarily drawn to scale.XY32Z Write an explanatory essay to inform the people in your community about what they can do to lessen their impact on the environment. Your essay must be based on ideas and information that can be found in the passage set. Which phrase defines altitude?how tightly molecules are packeda column of air pushing on an areathe force pushing on an area or a surfacethe height of a given point above sea level find the solutions question is pasted on the question 7. How does the word choice in paragraph 70 contribute to thetone of the passage? a sound of thunder Select the quadrant or axis where each ordered pair is located on a coordinate plane are they functions? if not why? Learning Task 5: Read each situation and encircle the letter of the bestanswer. Do this activity on your notebook,1. Our team is the champion because of our captain. No matter how fast hisOpponent shoot the ball he can do the same, he never misses it and hits itright back. What emotion is shown in the situation?A. HappinessB. AngerC. SadnessD. Afraid