heeeeeeeeeeeeeeeeeeeeeelp

Heeeeeeeeeeeeeeeeeeeeeelp

Answers

Answer 1

Answer:

The correct answer is 2.33g of [tex]H_{2}O[/tex], A

Explanation:

We can use basic stoich to get this question.

To start, lets convert our grams to moles in order to use our equation. 5.38g of [tex]O_{2} = (\frac{5.38}{2*15.999}) moles = 0.168136[/tex] moles.

We then can use our molar ratio of 13:10. Simply divide by our molar ratio in order to go from moles of [tex]O_{2}[/tex] to moles of [tex]H_{2}O[/tex]. This gets us 0.129335 moles of [tex]H_{2}O[/tex].

Now lets convert to grams of [tex]H_{2}O[/tex] by multiplying by the molar mass of [tex]H_{2}O[/tex]. [tex].129335*(1.008*2+15.999) = 2.32997g[/tex] of [tex]H_{2}O[/tex]


Related Questions

In a metallic bond electrons are _______________. A. transferred C. shared B. delocalized D. lost

Answers

Answer:

in a metallic bond electrons are delocalized

can someone help me i need it before 10:10​

Answers

Answer:

B 6NO  A 5N2  C 6H2O  D 4Nhd

Explanation:

Which is a higher concentration, 10-9 M or 10-8 M? Explain.

Answers

Answer:

10-9 Millimeters/liters

Explanation:

Because 10-9 M Is more than 10-8 M

I hope this is correct

A scientist wants to investigate the effect of concentration of nutrient agar to the growth of bacteria. He created 3 set ups: A) 30 g nutrient agar powder in 1 L H2O B) 40 g nutrient agar power in 1L H2O C) 50 g nutrient agar powder in 1 L H2O

1) Based from the given scenario, CREATE a testable hypothesis using IF-THEN- BECAUSE statements.
2) Using your hypothesis, IDENTIFY the dependent and the independent variables.

Answers

can i please please answer me this

please help me with n5 ty
and don’t waste my time if you don’t know the answer please
Thanks:)

Answers

You need this for #4

2H2+O2=H2O

So #5 could be hydrogen (H2) will react with oxygen to form water (H20)
One of the reactants in the equation is Hydrogen(it can also be oxygen), the product formed is H2O or Water

What procedures can be performed on trials 2 and 3 so that the rate of dissolving is the same as trial 1?

Answers

Answer:

increase the temperature

Explanation:

if you increase the temperature, the dissolving rate time will decrease.

The procedures that can be performed on trials 2 and 3 so that the rate of dissolving is the same as trial 1 is by increasing the temperature. Therefore, the correct option is option D.

What is rate of dissolution?

A solute dissolves together into solvent during the process of dissolution, creating a solution. We are aware that the collisions between the molecules of the solvent and the particles inside the solid crystal are what cause a solid to dissolve in water.

The pace of dissolution will rise if anything is done to make such collisions happen more frequently or with more energy. Consider attempting to dissolve little sugar in a cup of tea. A cube of sugar would dissolve more slowly than a packet of powdered sugar. Stirring or stirring the solution would speed up the rate of dissolution. The procedures that can be performed on trials 2 and 3 so that the rate of dissolving is the same as trial 1 is by increasing the temperature.

Therefore, the correct option is option D.

To know more about rate of dissolution, here:

https://brainly.com/question/2459213

#SPJ2

Which does not show earths past environment?

Please hurry I need this :((

Answers

There’s no options!!

Please help with chemistry

Answers

Answer:

Proton

Explanation:

It has a positive charge

Answer:

electron

Explanation:

How far is Louisville from the nearest oil field?​

Answers

Answer:

anyywhere between 20-23 miles

Explanation:

it depends what type of oil field u mean

15,499 km is Louisville from the nearest oil field. Therefore, option A is correct.

What do you mean by an oil field ?

An oil field is defined as a piece of land beneath which fossil fuels can be extracted for economic value. The world's oil is concentrated in oil fields found in the Middle East, along with other large deposits discovered beneath the ocean's surface.

Oil wells are classified into three different categories. Those that exclusively formed oil, those that exclusively formed natural gas and those that formed both oil and natural gas.

Petroleum supplies transportation fuel, is a part of many chemicals and medicines, and is used to create crucial items such as heart valves, contact lenses, and bandages. Oil reserves attract outside investment and are important for improving countries' overall economy.

Thus, 15,499 km is Louisville from the nearest oil field, option A is correct.

To learn more about an oil field, follow the link;

https://brainly.com/question/24147938

#SPJ6

Your question is incomplete, most probably your question was

How far is Louisville from the nearest oil field?​

A.15,499 km

B.15,499 m

C.14,567 km

D.14,567 m

An object accelerates 5.0 m/s2 when a force of 12.0 newtons applied to it.What is the mass of the object?
Please help, I haven’t seen this question anywhere !
Also this is from my Science Class

Answers

Answer:

2.4kg

Explanation:

Newton's 2nd law tells us that force is equal to the mass of an object multiplied by its acceleration, or F = ma. We can solve this equation for mass by rearranging algebraically:

m = F/a

So:

m = (12.0N)/(5.0m/s2) = 2.4kg

Which characteristics of flower petals help an angiosperm reproduce? (Select all that apply.)

Answers

Answer:

attractive smell and bright colours

The melting point of a substance is the same as its _____ point.


evaporation

freezing

boiling

sublimation

Answers

boiling is the answer

Which statement BEST describes what happens during solvation?

Answers

Answer:

A

Explanation:

The statement best describes solvation " KCl is surrounded by the polar water molecule to form an electrolyte solution which can conduct electricity."

What is solvation?

The act of attracting and associating particles of a solvent mostly with molecules as well as ions of a solute would be known as solvation.

What is electrolyte?

A material that contains ions and has been electrically conducting due to the mobility of the ions but still doesn't conduct electrons was called an electrolyte.

Whenever the solvent would be in the water, the process is referred to as hydration. The process of solvation shows the combination of solvent and solute molecules. A solute molecule is usually surrounded with solvent molecules that are organized in a special manner during solvation.

Therefore, the correct answer will be an option (A)

To know more about solvation and electrolyte

https://brainly.com/question/14356923

#SPJ3

how to find molar mass

Answers

Answer:

Multiply the element's atomic mass by the number of atoms of that element in the compound. This will give you the relative amount that each element contributes to the compound. For hydrogen chloride, HCl, the molar mass of each element is 1.007 grams per mole for hydrogen and 35.453 grams per mole for chlorine.

hi can you balance the equation Fe + O2 = Fe2O3

Answers

Answer:

4Fe + 3O2→ 2Fe2O3

Explanation:

Fe + O2 → Fe2O3 is the unbalanced form of chemical reaction.

Balancing the simple molecules first, in this case the O2

Fe + 3O2→ Fe2O3 there are now 6 O atoms on the left, there must also be 6 O atoms on the right.

Fe + 3O2 → 2Fe2O3

Balance the rest of the equation.

4Fe + 3O2→ 2Fe2O3

An object with a mass of 2.0 kg had a force of 4.9 newtons applied to it.What is the resulting acceleration of the object?
This is from my Science Class !And I haven’t seen this question anywhere !

Answers

Answer:

2.45 m/s2

Explanation:

Newton's 2nd law tells us that force is equal to the mass of an object multiplied by its acceleration, or F = ma. We can solve this equation for acceleration by rearranging algebraically:

a = F/m

So:

a = (4.9N)/(2.0kg) = 2.45 m/s2

Which area is MOST likely to support a marsh ecosystem? a sunny, open area with lots of sand dunes a shallow, sheltered area near an estuary a rocky, coastal area with very high tides deep ocean water miles from a river's mouth

Answers

Answer:

coastal area with very high tides deep ocean water miles from a river's mouth

Explanation:

Marshes are a type of wetland ecosystem where water covers the ground for long periods of time. Marshes are dominated by herbaceous plants, such as grasses, reeds, and sedges(National Geographic Society).

Animals found in a marsh include;  frogs, toads, turtles, snakes, mammals, birds and insects. A marsh is a wetland that is dominated by herbaceous rather than woody plant species(Wikipedia). It is characterized by very high tides deep ocean water miles from a river's mouth.

Answer:

a shallow, sheltered area near an estuary

Explanation:

What does water offer that attracts human settlement?

Answers

Answer:

Water is a human necessity. Therefore, it is one of the first things a human settlement would need to have. A community cannot thrive without a water source.

Answer:

Water is a basic need that is more than a necessity, humans can't survive without water for more than a period of three days, And thus having water as available, creates a tendency among humans as humans like to get everything at ease so they tend to settle near the water bodies if possible.

someone help ,, I'll give brainliest lolll .

Answers

Answer:

#2

Explanation:

Corrosion is a natural process that converts a refined metal into a more chemically stable form . It is the gradual destruction of materials by chemical

A halloon has a volume of 456 mL at a pressure of 1.0 atm. It is taken under water in
a submarine t a depth where the air pressure in the submarine is 3.3 atm. What is the
volume of the balloon? assume con- stant temperature.

Answers

If someone sends a link don’t go to it, they use them to find your address

According to Boyle's law, temperature being constant the volume of the balloon at pressure 3.3 atmospheres is 138.18 ml.

What is Boyle's law?

Boyle's law is an experimental gas law which describes how the pressure of the gas decreases as the volume increases. It's statement can be stated as, the absolute pressure which is exerted by a given mass of an ideal gas is inversely proportional to its volume provided temperature and amount of gas remains unchanged.

Mathematically, it can be stated as,

P∝1/V or PV=K. The equation states that the product of of pressure and volume is constant for a given mass of gas and the equation holds true as long as temperature is maintained constant.

According to the equation the unknown pressure and volume of any one gas can be determined if two gases are to be considered.That is,

P₁V₁=P₂V₂

Substitution in above equation gives, V₂=1×456/3.3=138.18 ml.

Thus, the volume of balloon is 138.18 ml.

Learn more about Boyle's law,here:

https://brainly.com/question/1437490

#SPJ2

What is the percent composition of Iron in
Fez(Cr207)3

Answers

Answer:

Explanation:

The percentage composition of iron (Fe) in Fe2(Cr207)3 can be calculated by finding the molar mass of Fe and the compound

Question #9: What is the
temperature at an altitude of 50
kilometers above sea level?

Answers

Answer:

20ºCelsius

Explanation:

What is the oxidation state of S in S2032-?
O A. +3
O B. -2
O C. +4
D. +2

Answers

Answer: D.) +2

so the oxidation state of sulfur is +2.

Explanation:

halp balance plez (⊙◡⊙)

Answers

Answer: SnO2 + 2 H2 = Sn + 2 H2O

Explanation: I used a balance equation website. It's called WebQC if you want to check it out for future help.

WHAT ARE SOME POSSIBLE CONSEQUENCES IF A HUMAN BODY DOES NOT MAINTAIN
HOMEOSTASIS

Answers

Answer: If homeostasis is disrupted, it must be controlled or a disease/disorder may result.

Explanation: What happens if there's disruption? Your body systems work together to maintain balance. If that balance is shifted or disrupted and homeostasis is not maintained, the results may not allow normal functioning of the organism.

When the cells in your body do not work correctly, homeostatic balance is disrupted. Homeostatic imbalance may lead to a state of disease. Disease and cellular malfunction can be caused in two basic ways: by deficiency (cells not getting all they need) or toxicity (cells being poisoned by things they do not need).

Which one do I pick?

Answers

Answer:

i would go for the 2nd as far as i know they were a big continent and an earthquake separes them all

For the balanced equation shown below, if the reaction of 34.6 grams of C2H4F2 produces 6.90 grams of H2O, what is the percent yield?
2C2H4F2 + 3O2 → 4CO + 2H2O + 4HF

Answers

lima ribu juta miliar triliun ......

A flask contains a mixture of hydrogen gas and water vapor at STP. If the pressure of the water vapor is 19.5 mmHg, then what is the pressure of the hydrogen gas?


779 mmHg
779 mmHg

760 mmHg
760 mmHg

81.7 mmHg
81.7 mmHg

741 mmHg

Answers

Answer:

I would say A but not sure

Explanation:

What is the mass of oxygen in 10 grams of water?

Answers

Answer:

The answer is 16.00 amu

someone help ,, I'll give brainliest loll .

Answers

Answer:

the answer is the emission of radiation from an atoms of a unstable element

Answer:

the answer is number 3, the emission of radiation...

Explanation:

Other Questions
Des amis parlent de leurs souvenirs de voyage. Trouvez la bonne prposition pour chaque phrase.1. On joue beaucoup la ptanque (/en/au) Marseille. 2. (/la/En) Au Norvge (Norway), tout le monde fait du ski de fond. 3. L'anne dernire, nous sommes alls faire du saut l'lastique (en//de) La Runion. C'tait formidable! 4. Quand Catherine est alle (en//aux) Pays-Bas, elle a vu des champs (fields) de tulipes magnifiques. 5. Quand j'tais (en//la) au France, j'ai vu des courses de chevaux. 6. Patrick a fait de l'alpinisme (au/en/) Suisse. Il a de la chance! 7. (En//Au) Mexique, Nathalie a achet un grand sombrero. 8. Vous avez mang beaucoup de camembert (au/en/) Normandie cet t? Solve the system of equations What is the length of DE ? Consider the following reversible reaction.Upper C (s) + Upper O Subscript 2 Baseline (g) double arrow Upper C Upper O Subscript 2 Baseline (g)What is the equilibrium constant expression for the given system?k Subscript e q Baseline = StartFraction left-bracket Upper C Upper O Subscript 2 Baseline right-bracket Over left-bracket Upper C right-bracket left-bracket Upper O Subscript 2 Baseline right-bracket EndFractionk Subscript e q Baseline = StartFraction left-bracket Upper C Upper O Subscript 2 Baseline right-bracket Over left-bracket Upper O Subscript 2 Baseline right-bracket EndFractionk Subscript e q Baseline = StartFraction left-bracket Upper C right-bracket left-bracket Upper O Subscript 2 Baseline right-bracket Over left-bracket Upper C Upper O Subscript 2 Baseline right-bracket EndFractionk Subscript e q Baseline = StartFraction left-bracket Upper O Subscript 2 Baseline right-bracket Over left-bracket Upper C Upper O Subscript 2 Baseline right-bracket EndFraction In your own words, how would you describe Heredity in one sentence? Temperature is a measure of ____ of the particles in an object. Which sentence uses an interjection correctly? Jonathan is coming from umm downtown! I think. I need to go home and take a nap to feel better bye. Shh the sign says there's no talking in the library. Wow! That was a fantastic way to end the game. help please thank you 4) HELP ASAP is about cylinders and stuff and I have to wash dishes and stuff so please help me and if you can show work that would be amazing THANK YOU :) It says a=lw not a=ewpls answer 2/9 13/9Help me fast PLEASEE MY LAST POINTS!!!!!! PLEASE HELP :( A projectile is fored vertically upward with an initial velocity of 190 m/s. Find the maximum height of the projectile. symbols used in equations, together with the explanations of the symbols, are shown below. which set is correct?1. (g), grams2. (l), liters 3. (aq), dissolved in water4. (s), solid product someone please explain this to me, all of these answers seem correct to me! This is due today and it would be awesome if someone could do one of these problems so I can see how to do them thanks :) HELPPPP IM TAKING FINALS!Question 17 (5 points)Which of the following most likely functions as the climax in a story? (5 points)1)"I understand finally why you lied, but we will be fixing this mess for years,"she said.O 2"We should try to find other volunteers to help us get this done," she saidquietly.3) The room grew quiet, as if we were all trying to find an answer in ourcollective brain.4)If we had only learned about Joey sooner, so much trouble could have beenavoided. the diameter of a bike wheel is 25 inches. If the wheelmakes 20 Complete rotations, how far does the bike travel? What is the quotient of 30 and 3? A 33 B 27 C 90 D 10 Name this angle please Nicole finishes walking at 5:15 she walked away from her house for 17 minutes and then walked back which took 17 minutes at what time did Nicole leave her house to start walking