HELP! help will give brainiest

HELP! Help Will Give Brainiest

Answers

Answer 1
I believe it’s Fatigue
Answer 2

Answer:

The sun or producers.


Related Questions


You are decomposing 2.00 mol of baking soda according to the following equation:
2 NaHCO3 -> Na2CO3 + CO2 + H2O
If you only collected 0.750 mol of Na2CO3 after the reaction finished, what was the
percent yield?
75.0%
62.5%
37.5%
25.0%
Question 6 (1 point)
✓ Saved

Answers

I’m not sure but I’m thinking 75.0% btw if you want an exact answer you need to offer more than 5 points

A greenhouse is filled with air that cotains more carbon dixoide than normal air has. How might phothsyphness and plant growth be affeacted

Answers

Answer:

See explanation

Explanation:

We know that photosynthesis involves the combination of carbon dioxide and water in the presence of sunlight to yield glucose.

If the atmosphere is rich in carbon dioxide such as  in a green house where air is filled with carbon dioxide, the rate of photosynthesis is increased.

As the rate of photosynthesis is increased, the growth of plants is also increased.

Hence, in a greenhouse where the air contains more carbon dioxide, the rate of plant growth increases.

What does oxygen hitch a ride on to move from the lungs to the blood and eventually the heart? Your answer​

Answers

The oxygen enters blood in the tiny capillaries, hitching a ride on red blood cells and traveling through layers of blood vessels to the heart.

HELPPPPPPP PLEASEEEE

Answers

Answer:

Plant and Animal

Explanation:

The others are not accurate

True or false: The phenolphthalein indicator changes colour close to the point of neutralization which shows the end-point of the titration.

Answers

Answer:

True

Explanation:

A titration can be defined as the experiment where the volume of known con concentration is mixed into another solution whose concentration is not known.

Most of the titration are acid-base titration. When performing titration the indicator which is used is usually phenolphthalein. The end point of the titration is the point where the indicator changes its color.

In case of acid base reaction, the end point is achieved when the phenolpthalein turns faint pink in color from transparent.

Hence, the given statement is correct, the indicator changes its color close to the end point of titration.

Can anyone help me out?

Answers

a. mass number minus atomic number

the internal energy of a substance Is called​

Answers

Answer:

The internal energy is the total amount of kinetic energy and potential energy of all the particles in the system. ... When the substance melts or boils, energy is put in to breaking the bonds that are holding particles together, which increases the potential energy.

Explanation:

A 2.50 L sample of butane gas (C4H10), measured at 22.0
oC and 1.20 atm pressure, is combusted completely and
the carbon dioxide gas collected at the same pressure and
temperature. What volume of CO2 is produced?

Answers

Answer:

Same i guess hdjekfhkshfjfkr

The resultant volume of the carbon dioxide gas which is produced by the combustion of butane is 14.4L.

How do we calculate the moles of gas?

Moles of any gas will be calculated by using the ideal gas equation as:

PV = nRT, where according to qustion for butane gas

P = pressure = 1.20 atm

V = volume = 2.50L

n = moles = ?

R = universal gas constant = 0.082 L.atm / K.mol

T = temperature = 22 degree celsius = 295.15 K

On putting values we get

n = (1.20)(2.50) / (0.082)(295.15) = 0.124 moles

Given chemical equation is:

C₄H₁₀ + 13/2O₂ → 4CO₂ + 5H₂O

From the stoichiometry of the reaction, it is clear that,

1 mole of C₄H₁₀ = produces 4 moles of CO₂

0.124 mole of C₄H₁₀ = produces 4×0.124=0.496 moles of CO₂

Now we calculate the volume for the carbon dioxide gas at the given pressure and temperature as:

V = (0.496)(0.082)(295.15) / (1.20) = 14.4 L

Hence required volume of CO₂ is 14.4 L.

To know more about ideal gas equation, visit the below link:

https://brainly.com/question/24236411

#SPJ2

How many grams are in 2.4mol sulfur, S?

A.)77g

B.)6.2x10^2g

C.) 0.075g

Answers

The answer is A.

A mole is Avagadro’s number of atoms of a substance. My periodic table of the elements gives the Gram Atomic Mass of natural sulphur is 32.066 grams/mole. Therefore, 2.4 moles would have a mass of 76.96 gm

Answer:

77.0 grams S

You add 28 grams of carbon. You find the actual yield to be 181.2 grams of CO2. What is the percent yield of CO2?

Answers

Answer:

79.14%

Explanation:

Given the equation : 2Fe2O3 + 3C 4Fe + 3C02

The theoretical yield of CO2 ; is 102.6g

Actual yield = 81.2 gram

Percentage yield = (actual yield / theoretical yield) * 100%

Percentage yield = (81.2 / 102.6) * 100%

Percentage yield = 0.7914230 * 100%

Percentage yield = 79.14%

Hence, tbe percentage yield of CO2 is 79.14%

What is the mass in grams of 4.4 moles of the element tungesten, W?​

Answers

Answer:

806.96 g

Explanation:

From the question,

Using,

No. of mole = reacting mass/molar mass.

n = R.m/m.m....................... Equation 1

make R.m the subject of the equation

R.m = molar mass of tungsten × number of mole of tungsten.................. Equation 2

Given: number of mole of tungsten = 4.4 moles

Constant: Molar mass of tungsten = 183.8 g/mol

Substitute these values into equation 2

Therefore,

mass of tungsten = 4.4×183.4

mass of tungsten = 806.96 g

809.6g is your answer

Answer:

1 mole of tungsten =184 g

4.4 mole of tungsten =184×4.4=809.6g

Molarity is measured in
A.) moles per mL

B.)moles per kJ

C.)moles per kg

D.)moles per L

Answers

answer D moles per L

HELP MEEE PLEASEEEEEEEEEEEEEE

Answers

I think its the sea cucumber and sea urchin

but it could be the star too

hey y'all i just want to know, do whales and dogs have a common ancestor?

Answers

yes

Explanation:

Which suggests that in an earlier time whales and dogs could have evolved from the same organism. the common ancestor in the 2 animals share notible traits. the pakicets was one of the whales ancestors and the grey wolf was the dogs ancestor.

HELP ASAP !!! PLS ITS DUE IN LIKE 4 MINUTES

Answers

Answer:

they have the same structures in common

80.0 grams of NaOH is dissolved in water to make a 6.00 L
solution. What is the molarity of the solution? (Molar mass of NaOH
= 40.0 g/mol)
M М.

Answers

Answer:

0.333 M

Explanation:

Divide the mass of NaOH by the molar mass and then divide by the volume.

80.0 g / 40.0 g/mol = 2.00 mol NaOH

2.00 mol NaOH / 6.00 L = 0.333 M NaOH

what is the advantage of rusting​

Answers

Answer:

Provide more strength

Explanation:

Rust is metal that has been oxidised . Oxides are usually more fragile and porous than their crystals metal equivalents. Some oxides, such as Aluminum oxide, are useful because they have a thin, strong shell that protects the metal from further corrosion.

The atmosphere is the air surrounding Earth and is made up of 78% _____, 21% oxygen, and other trace gases. Please help this is urgent!!

Answers

The Earth is made up of 78% of water!!

HELP ME ASAP PLZZ 21 POINTS

Answers

Answer:

A, D, F

Explanation:

Cold currents usually go along with Earth's rotation while the warm waters are subjected to the coriolis effect and go in a direction against Earth's rotation.

What volume of 7.68 M NaOH (aq) will neutralize 1.15 L of 2.35 M H2SO4 (aq) ?

A)1.38 L

B)0.704 L

C)0.276 L

D)1.90 L

E)1.75 L

Answers

i think the answer would be C

If a star is 300 light years away from Earth, how long does it take light from that star to reach Earth?

A. 300 days
B. 300 hours
C. 300 years
D. 300 light years

Answers

Answer: It would take 300 light years to reach Earth.

Explanation:

show the path to the formation of sodium calcium and aluminum bases please help me​

Answers

Answer:

i hope this helps :)

Explanation:

please mark brainlest

Answer:

dunno

Step-by-step explanations:

Neon occupies a volume of 6 L at 200 K. What volume will it occupy at 300 K

Answers

Answer: 9L

Explanation:

(6 x 300) = 1800 / 200 = 9

Which of these is a benefit of fuel cell cars?

A. Fuel cell cars reduce the use of fossil fuels.
B. Hydrogen fuel is volatile.
C. Fuel cell cars are quickly recharged.
D. Hydrogen fuel is a limited resource.​

Answers

Answer:

A.

Explanation:

There are no vehicle emissions other than water vapor. This means no pertroleum products and no fossil fuels. :)

-Sienna Sushi

Calculate the percentage composition of sugar, C12H22011.

Answers

Answer:

%C= 42.1

%H=6.5

%O=51.4

Explanation:

Mass%=(mass/total)× 100%  

What is the molar mass of Mn2Se7 ?

A.) 601.34 g/mol

B.) 542.50 g/mol

C.) 662.60 g/mol

Answers

Answer:

C.  662.60

Explanation:

the mass of Mn is about 54 grams/mol, (multiply that by 2 since there are 2 Mn's).

the mass of Se is about 79 grams/mol, so multiply that by 7

if you add them, you get 662.60 (approxamitly)

Answer:

C) 662.60

Explanation:

~~55*2 + 79*7 = 110 + 553 = 663 (~~662.60)

Drag the tiles to the correct boxes to complete the pairs.
Nelly goes shopping on a weekday. She picks up protein powder so she can make a protein shake. She buys a double cheeseburger on her way home. She eats part of it, and then stores the rest of it in a paper bag so she can eat it later. Later in the day, she puts together several small packages of candies as gifts for her nieces and nephews. She labels each package and sends it through the mail.

Match each item or action with the organelle it could represent.

Answers

Paper bag vacole
Packaging candles

Protein shake -------------> Ribosome

Paper bag -------------> Vacuole

Packing candles -------------> Golgi Apparatus

im not 100% sure if paper bag and packing candles is correct.

Question 15 (3 points)
How are cations and anions related to metals and nonmetals?

Answers

Answer:

uff mere dil ma ture kali chadiya ha uff tumi apne buni ha

Answer:

Cations (positively-charged ions) and anions (negatively-charged ions) are formed when a metal loses electrons, and a nonmetal gains those electrons. ... And all of them form an anion with a single negative charge.

This is agree or disagree I need help ASAP!!

Answers

Answer:

disagree

sometimes they attract

Explanation:

Answer:

Explanation:

2. Agree

3. Agree

4. Agree

5. agree

6. disagree

If im wrong its because im tired lol

Where did scientists find most of the nitrogen that the rats ate?

Answers

Answer:

They found the rats near or in a lake or river, due to high concentration of nitrogen in their body.

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Ratchet Manufacturing anticipates total sales for August, September, and October of $370,000, $295,000, and $305,500 respectively. Cash sales are normally 25% of total sales and the remaining sales are on credit. All credit sales are collected in the first month after the sale. Compute the amount of cash received for September.Multiple Choice$498,750.$351,250.$166,250.$277,500.$221,250. please help its urgent which of the following is an example of popular sovereignty the difference of 17 and 5 times a number (s) PLS ANSWER ASAP THANKS PLEASE !!! HELP D: lord pls hi brainly people, help me please lawl please help i need answers now answer for points if u need some ne of the reasons writers provide context in an argument is to explain why the reader should care about the issue. Imagine you are writing an essay about the importance of installing street lights in neighborhoods. What information could you include in the introduction to get readers to care about the issue? Someone help mee 18/3(5-2) what does hertzsprung-russell diagram display?A.the distance between Earth and other stars.B.who discovered each star.C.temperature and luminosity of may starsPLEASE HELP!! Much appreciated! Pls help me find the area in this pic! ANSWER ASAP GIVING BRAINLIEST!Write 2-5 sentences using the phrases electric generator and electric motor. PLS HELPCindy wants to sell 300 shares of a companys stock at the market price of $25 per share. She looks up online brokers and the fees they charge. Arrange the brokers fees in order from least to greatest.(i looked at other brainly answers to this question and they were all different to each other like there were 3 diff answers) which situation best represents convection Using specific examples of land, labor, and capital, explain why economists believe that all goods and services are scarce Max picked out an old Star Wars puzzle to put together. Out of the 75 pieces, he was missing 3.What percentage of the pieces was he missing?After a cab ride, Jacobs total fare was $45. He paid the cab driver a 15% tip. How much was the tip?Joeys mom baked (30) cookies. That night, there were 21 cookies left. What percentage of the cookies were eaten? Lins family has completed 70% of a trip. They have traveled 35 miles. How far is the trip? (If you get stuck, draw a tape diagram)Marco bought a doll for his little sister. The price on the tag was $25, but it was on sale for 80% off. How much did Marco pay for the doll?SHOW WORK ONE ALL PLZ HELP 1. Which cell has a cell membrane(1 Point)O plantO animalO both2. Cell Wall(1 Point)O PlantO AnimalO Both3. Chloroplast(1 Point)O plantO animalO both4. Cytoplasm(1 Point)O PlantO AnimalO Both sin 75(cot 75 + cot 60)help me simplify this