Chemistry College

What does lowercase v represent in this formula?

Answers

Answer 1

lowercase v = velocity

Related Questions

Answer the following question attached!!

Answers

Answer:

I think It is Covalent. Not 100% sure but like 90% sure.

describe the components of a molecule whose atoms are joined by covalent bonds.

Answers

Answer:

nonmetal

Explanation:

In a covalent bond, the atoms bond by sharing electrons. Covalent bonds usually occur between nonmetals. For example, in water (H2O) each hydrogen (H) and oxygen (O) share a pair of electrons to make a molecule of two hydrogen atoms single bonded to a single oxygen atom.

please help me!! DUE TOMORROW :(

Answers

Answer:

It’s in the photo, sorry if it’s really messy!

Explanation:

Please ask if you have any questions!

How many grams of CaSO4 form when
50.0 mL of 0.20 M Ca(NO3)2 react with
excess potassium sulfate solution?
Ca(NO3)2 + K2SO4 → CaSO4 + 2KNO3
-
?] g CaSO4

Answers

Answer:

1.36g CaSO4 (FIXED THIS)

Explanation:

.01 mol CaSO4 is the conversion factor between these values and now you just need to multiply it by the molar mass of .01 x 136.14=1.36g CaSO4

Apologies for having the wrong answer before this, it's been a long day.

11) What volume will 0.75 mol of Oxygen gas (O2) occupy at 298 K and a pressure of 52.7 kPa?

Answers

Answer:

Volume = 35.3L

Explanation:

Use Ideal Gas Law (PV=nRT) and isolate for V (volume) by dividing both sides by P (pressure). You will then get the eqaution listed below and you can solve by using the method I used below.

V = nRT/P

V = (0.75kPa)(8.314)(298K)/(52.7kPa)

V = 1858.179/52.7

V = 35.3L

how many grams are in 1.35 moles of NH3

Answers

n=m(g)/Mwt (3(1)+1(14))
1.35=m/17
m=17*1.35=22.95 g

Consider the reaction where barium sulfate can be prepared from 2.76 mol of sodium sulfate and excess barium acetate. Sodium acetate is the other product
1.write the balanced MOLECULAR reaction.
2.write the balanced total ionic equation.
3.write the balanced net ionic equation.

Answers

Answer:

1. Na2SO4(aq)+C4H6BaO4(aq) --> BaSO4(s) + 2C2H3NaO2(aq)

2. 2Na^+1(aq) + SO4^-2(aq) + 4C^+4(aq) + 6H^+1(aq) + Ba^-2(aq) + 4O^-2(aq) --> BaSO4(s) + 2C^-4(aq) + 2H^+1(aq) + 3Na^+1(aq) + 2O^-2(aq)

3. Ba^+2(aq) + SO4^-2(aq) --> BaSO4(s)

Explanation:

What is the mass of an aluminum block if the density of aluminum is 2.70
g/cm and the volume of that block is 4.8 cm?

Answers

Answer: 50 M

Explanation:

Mass

Density×Volume2.7(4.8)11.6111.6g

Formula used

Density=Mass/Volume

What volume of 0.100 M AgNO3 is
needed to react completely with
45.0 mL of 0.230 M Na2S?
2AgNO3 + Na2S → Ag2S + 2NaNO3
[?] mL AgNO3

Answers

Answer:

448mL AgNO3

Explanation:

M x V

n = 0.230 x .045 = 0.01

2AgNO3 + Na2S --> Ag2S+2NaNO3

1 mol Ag2S --> 2 moles AgNO3

.01 mol Ag2S --> ? moles AgNO3

.01x2/1=.02 moles AgNO3

Moles to L conversion is multiplying by 22.4L so we do .02 x 22.4=0.448L

Then we convert to mL so we multiply by 1000 (1000 x 0.448)

448mL AgNO3

There you go friend, good luck with chemistry :)

How many grams of O2 are reacted when 3.5
mols of P203 are formed?

Answers

1.45 moles of P2O3 contains 1.45 moles of O3 which means 4.35 moles of O:

1.45 × 3 = 4.35 moles of O

Then you can calculate moles of O2 by dividing it by 2:

4.35 moles ÷ 2 = 2.175 moles of O2 needed

non-protein amino acid (A) orithine (B) homocysteine

Answers

Answer:

Homocysteine is though to be a non-protein animo acid. however in vintro studies suggest that Homocysteine is likely to be incorporated by inderict

why compounds with weak molecular forces are usually gases.

Answers

Molecular substances tend to be gases because the intermolecular forces of attraction are comparatively weak. You don't have to break any covalent bonds in order to melt or boil a molecular substance.

The longest intermolecular separation and hence the strongest intermolecular pressure of attraction can be found in the gaseous state of matter.

Although solids' intermolecular interactions were sufficient to maintain themselves in locked places, gases often have weak intermolecular forces that cause them to remain considerably separated. The gases possess greater intermolecular space than solids as a result of these weak forces.

To know more about molecular forces:

https://brainly.com/question/21826959

#SPJ1

Calculate the vapor pressure in torr of a solution containng 24.5 g of glycerin (C3H8O3) in 135 mL water at 30.0* C; the vapor pressure of water at this temperature is 31.8 torr. Assume that glycerin dissolves molecularly (does not dissociate).

Answers

Psolution = X · PH_20
= 0.966 · 31.8 torr
= 30.7 torr

I want a pharmacist technician to help me with a question please

Answers

I'm a pharmacy dispenser which is the same thing. what's your question?

what is the name of the compound N2O5

Answers

Answer:

Dinitrogen pentoxide also known as Nitrogen pentoxide or nitric anhydride (these are all the same thing just different names people call them)

It’s Dinitrogen pentoxide

(Please someone help me!) (No links!)
Please ignore the blue dot, I accidentally pressed it and won't get rid of it!

Answers

Answer:

you picked the right one the net worth of force would be 10

Explanation:

how cuz you got 1 team with 6 force then aother 1 with 4 add em up u get 10

Polyvalent ions are

1) Anions with variable charges
2) Cations from columns 3 to 12
3) Ions that can be positive or negative

Answers

Answer:
3) Ions that can be positive or negative

Hope this helps!

Can someone please help. I have no idea how to do this

Answers

Explanation:

c-o number if electrons shared: 4. doubke bond. non polar

c-cl 2 electrons sharde single bond non polar

I know this cause one dash equals 2 electrons chemistry teachers use them when two compounds are sharing electrons rather then using two dots so people know the difference

Which of the following expresses the value 300,000,000 in correct scientific notation?
Group of answer choices

3 x 108

0.3 x 10-9

3 x 10-8

0.3 x 109

Answers

Answer:

3 x 10^8

Explanation:

Giúp mình 2 câu này với ạ
1, Pha 500ml dung dịch HCl 10% (w/v) từ dung dịch 37% (w/w) d=1.19 g/ml
2, Cách pha như thế nào để nhận được 200g dung dịch HCl 25% (w/w) từ dung dịch HCL 37% (d=1.19 g/ml)

Answers

Answer:it is wrong answer

Explanation:estro man

Which method is used to obtain common salt from rock salt? Why?

Answers

Rock salt or halite is a mineral the contains sodium chloride (table salt) as well as other minerals and impurities. You can remove most of these contaminants using two simple purification techniques: filtration and evaporation.

Materials
Rock salt
Water
Spatula
Filter paper
Funnel
Evaporating dish
Beaker or graduated cylinder
Tripod
Bunsen burner
Filtration
If the rock salt is one large chunk, grind it into a powder using a mortar and pestle or a coffee grinder.
Add 30-50 milliliters of water to six heaping spatula scoops of rock salt.
Stir to dissolve the salt.
Place the filter paper in the mouth of the funnel.
Place the evaporating dish under the funnel to collect the liquid.
Slowly pour the rock salt solution into the funnel. Make sure you don't over-fill the funnel. You don't want the liquid to flow around the top of the filter paper because then it isn't getting filtered.

How do the terms genotype and phenotype relate?
O Both are sets of alleles that define traits.
O An organism's phenotype leads to its genotype.
O An organism's genotype leads to its phenotype.
Both are terms for observable traits

Answers

Answer:

c is the

Explanation:

need help with question please ..
-20 points

Answers

Answer:

B oklolol

[tex][tex]\purple{\rule{45pt}{7pt}}\purple{\rule{45pt}{999999pt}}[tex][/tex]

how many compounds can I make with sodium, hydrogen, oxygen?

will give brainliest and 100 points to the correct answer

Answers

Answer:

маны

Explanation:

Answer:

2H2 + O2 → 2H2O

Explanation:

How can a redox reaction be identified?
O A. Atoms have rearranged.
O B. Protons have been transferred.
.
O
C. lons are present in solution.
D. Oxidation states have changed.

Answers

Answer:

'Oxidation states have changed.'

Explanation:

Redox Reactions can be identifiable by a change in oxidation number/states of two of the atoms in the reaction. Any reaction in which no oxidation numbers/state change is not a redox reaction.

What is the formula unit for an ionic compound?

Answers

Answer:

empirical formula

Which of the following is not part of an amino acid?
A. ammonium group
B. carboxylate group
C. ether group
D. unique "R" group

Answers

Answer:

Explanation:

Ether group does not exist in amino acids

Ammonium group is on one side

the carboxylate group is opposite to the ammonium group

the R group defines what amino acid it is.

Which branch of Earth science focuses more specifically on Earth's atmosphere?

Answers

Answer:

Meteorology

Explanation:

Meteorology focuses on Earth's atmosphere and, especially, how changes in the atmosphere affect weather and climate on Earth's surface.

Which of the following materials can conduct electricity?

Plastic pencil case
Rubber band
Steel necklace
Wood ruler

Answers

Answer:

plastics, Styrofoam, paper, rubber, glass and dry air.

Explanation:

Answer:

Explanation:

steel is a good conductor therefore,a steel necklace is your answer

mark my brainliest if i make sense enjoy the rest of your day!

what is the name of CrO2?

Answers

The name is chromium oxide!

Other Questions

Read these passages from the Article. Which one shows that olive trees are very strong?Press enter to interact with the item, and press tab button or down arrow until reaching the Submit button once the item is selectedA. There are about 800 million olive trees in the world today.B. Ekron had about 35,000 olive trees.C. Olive trees are able to survive fire and drought.D. The trees are tourist attractions, too. i need help with this question please help :(Which of the following defines a cash crop?any crop grown to be sold for direct saleany crop grown to be sold to other growersany crop grown to be sold as a raw materialany crop grown to be sold on the commodities market Translate to Spanish One cant use bicycles here Major cities all over the world are changing color. The tall gray buildings that make up the landscape of urban environments are becoming greener. They aren't getting a fresh coat of paint. Instead, their roofs are being covered in grass and small shrubbery. Many rooftops are beginning to look like nature parks. This change isn't just for fun. It is an attempt to add plants that can clean city air, absorb waste water, and generally add beauty to the city environment.Green roofs started in Europe and are now gaining a strong foothold in the United States. They are a way to add a little nature to the city environment. People plant vegetable gardens, flowers, and decorative grasses on their rooftops. One green roof in New York City is built on top of a processing and distribution facility. It is the largest green roof in the country. It has survived snow and rain, given employees a beautiful place for a lunch break, and helped clean the city air.It is more expensive to build a green roof than it is to lay asphalt or shingles. The basic green roof requires a frame and a waterproof membrane. It also requires gravel for drainage. Special material needs to be laid to retain moisture. Of course, soil for planting and a barrier that prevents roots from penetrating the building are also necessary materials for a green roof. Despite the extra cost, the trend is growing.The city of Chicago now has more green roofs than any other U.S. city. There are 7 million square feet of green roofs planted across the city. Toronto, Canada, is the first city in the western hemisphere to mandate green roofs on all new tall buildings. Green roofs are beneficial to the environment and the cities that build them. A recent study in Toronto suggested that if 75 percent of the flat roofs were greened, the city could save $37 million a year on storm water management and energy bills. If this is true, we may begin to see more and more green added to cities around the world.Why does the author include the point that there are 7 million square feet of green roofs planted across the city of Chicago?A. To paint a picture of what the green roofs in Chicago look like.B. To exaggerate how many green roofs there are in the city.C. To show that Chicago has not accepted the green roof trend.D. To prove that Chicago has the most green roofs in the United States. square pyramid has _______ spaces Question locate in image show working one kilogram of cheese costs 9.48chris buys 650 g of this cheese work out how much chris pays Two handymen can do a home repair in 2 hours if they work together. One of the men takes 3 hours more than the other man to finish the job by himself. How long does it take for each handyman to do the home repair individually? I'm 17 and wanna learn the piano is it too late, also if it's not how would I learn when I can't get a piano or keyboard because we can't afford it and my family doesn't support me? Mr. Smith collected 200 eggs from his chickens on Saturday. When he sorted the eggs by their sizes, he found out tha 60% of the eggs are extra-large. How many extra-large eggs did Mr. Smith collect from his chickens? need help ASAP pls Decide whether the sentence is gramatically CORRECT or INCORRECT as written.Tengo ganas de ir afuera.correctincorrect A CD has a diameter of 12.0 cm. If the CD is rotating at a constant angular speed of 200 revolutions per minute, then the tangential velocity of a point on the circumference is: Why was Douglas MacArthur placed in chargeof the rebuilding of Japan after WWII?A. He was known as a strict military leader who disliked Japan.B. He was a respected leader in the Pacific whom the Japaneseknew.C. He had already helped to rebuild Germany after WWII.D. He was running for president and needed the media coverage. Qu dificultades experimentaron los jvenes? Tuvieron problemas armando la carrocera. Answer A: Tuvieron problemas armando la carrocera. A No encontraron piezas para ensamblar el vehculo. Answer B: No encontraron piezas para ensamblar el vehculo. B Se dieron cuenta que el motor no funcionaba. Answer C: Se dieron cuenta que el motor no funcionaba. C No disponan de las herramientas necesarias. Mr. Bloss made 36 out of 48 free throws while practicing for basketball. What percent of his free throws did he make? Simplify (5^3)^6 leaving your answer in index form. Please help with this ! I Need THIS DONE ASAP can i have some help on both of these questions for brainlist !!!!!!!!!!!