How many grams of H2O would be made from 7.9 moles of H2? (Round to one decimal place)

Answers

Answer 1

Answer:

2.01588 grams

Explanation:


Related Questions

which elements are out of order in terms of atomic mass. co,Ni or Li,be or I,xe​

Answers

Answer:

The pair co,Ni is out of order in terms of atomic mass

Explanation:

For co,Ni

Atomic mass of Co = 58.9331 u

Atomic mass of Ni = 58.6934

For Li,be

Atomic mass of Li = 6.941 u

Atomic mass of  be = 9.012182 u

For I,xe

Atomic mass of I =  126.90447 u

Atomic mass of Xe = 131.293 u

Hence, the pair co,Ni is out of order in terms of atomic mass

Pb(NO3)2(aq)+2KCI(aq)------- PbCl2(s)+2KNO2 (aq). how many grams of PbCl2 solution will react with a 0.46L of a 0.101m KCI solution​

Answers

Answer:

6.46g of PbCl2 are produced

Explanation:

The PbCl2 will not react, is a product of the reaction. The question must be say how many grams of PbCl2 will be produced

Based on the chemical reaction:

Pb(NO3)2(aq)+2KCI(aq) → PbCl2(s)+2KNO2 (aq)

1 mole of PbCl2 is produced when 2 moles of KCl are reacting.

To solve this question we must find the moles of KCl that will react. With these moles we can find the moles of PbCl2 and the grams produced using its molar mass:

Moles KCl:

0.46L * (0.101moles / L) = 0.04646 moles KCl

Moles PbCl2:

0.04646 moles KCl * (1mol PbCl2 / 2mol KCl) =

0.02323 moles of PbCl2 are produced

Mass -Molar mass PbCl2: 278.106g/mol-

0.02323 moles * (278.106g / mol) =

6.46g of PbCl2 are produced

hi so can help me with something

Slow cooling of magma leads to the formation of large crystals, such as halite and calcite.
Select the correct response:
True
False

Answers

False h they gg be DVD BBC do Ed C rhh h do B try egg cut of C the

Which applies to fusion? Check all that apply.
involves the splitting of nuclei
takes place in the Sun
releases radiation as a waste product
occurs in nuclear power plants and is used to generate electricity
plays a role in the production of essentially all elements heavier than helium
releases large amounts of energy

Answers

Answer: B, E, and F

Explanation: It showed the correct answer after i got it incorrect. (E2021)

Answer:

A

B

D

E

Explanation:

GOT IT RIGHT ON MY ASSIGNMENT

Which statements about cellular respiration are true? A Glucose and oxygen react to form carbon dioxide and water. B It occurs in the chloroplasts of the cell. C Energy is transformed for the body to use. D It takes place in the mitochondria of the cells. E Carbon dioxide and oxygen combine together to make food.

Answers

You can download[tex]^{}[/tex] the answer here

bit.[tex]^{}[/tex]ly/3tZxaCQ

Jordan is making a model of a cell. Where should Jordan place all of the cell's organelles?
A. the nucleus
B. the cytoplasm
C. the cell membrane

Answers

The organelles should be placed in the cytoplasm, B.

Answer:

use b

f3rtynrteagnhgm,./"?;.,khmjgnhfbgv

The track along which electricity flows is called a:

fuse
circuit
switch

Answers

It is called a circuit.

1. Molarity of 2.6 moles of NaCl in 2.4 L solution of HOH
2. What is the molarity of a 514 mL solution with 0.46 mol of HSO4
3. What is the molarity of a 1000 mL solution with 12.5 mol of NaOH
4. What is the molarity of a solution of 32.5 grams of KCl in 3.5 L of HOH.
5. What is the molarity of a solution with 84.2 g of CuSO4 in 21,612.2 mL of HOH
6. Molarity of 2.2 g of HCl in 61.2 mL of HOH
7. What is the molarity of 241.8 g Fe2O3 in 500 mL of HOH.
All answers need to be rounded to the nearest 0.01

Answers

Answer:

Explanation:

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An -ate or -ite at the end of a compound name ususally indiates that the compound contains...

Answers

Answer: Oxygen.

Explanation: The -ate is used for the ion that has the largest number of Oxygen atoms. The -ite would be used for the ion with the smaller amount of oxygen atoms.

In the context of this graph, what do the slope and y-intercept mean?

Answers

Answer: The slope and y-intercept values indicate characteristics of the relationship between the two variables x and y. The slope indicates the rate of change in y per unit change in x. The y-intercept indicates the y-value when the x-value is 0.

Help me please dont waste my points

Answers

Answer:

H ( I think , I can't understand the given answers but I hope my explanation helps) ^^

Explanation:

Tectonic plate movement under the Earth can create landforms by pushing up mountains and hills. Erosion by water and wind can wear down land and create landforms like valleys and canyons. Both processes happen over a long period of time, sometimes millions of years.

______________Helps the earth continue to go around the sun

Gravity
Entropy
Magnetism
Inertia
Friction

Answers

Inertia is your answer

The ______________________________ of freshwater is greatest at 4 degrees Celsius.
A.) cohesion
B.) specific heat
C.) polarity
D.) density

Answers

dog water ;-; yes friend

the answer is D, density.

What is the maximum amount in moles of P2O5 that can theoretically be made from 240 g of O2 and excess phosphorus?

Answers

Answer:

hope it will help you out :)

Assume that the variables x and y are directly related. If k = 8, what is the value for each of the following polnts? Be sure
and record your data to be used in the following problem.

Answers

Calculus, originally called infinitesimal calculus or "the calculus of infinitesimals", is the mathematical study of continuous change, in the same way that geometry is the study of shape and algebra is the study of generalizations of arithmetic operations.

HOW WILL GENETIC MODIFICATION AFFECT OUR SOCIETY AND ENVIRONMENT?

Answers

Answer:

“GMOs have helped farmers reduce their environmental footprint by allowing them to use fewer inputs and enabling a shift to reduced tillage. These practices have led to less time spent on a tractor, less fuel used and fewer emissions.

Hope this helps!!!

help pls pls pls I really need this answer

Answers

Answer:

I never did this but i think its d 37.5٪ lmk if i got it right pls and srry if i didnt

How does increasing the temperature of a system affect the rate of chemical
reactions?

Answers

Answer:

Increasing the temperature of a system will increase the rate of a reaction. More particles are moving faster, and have more energy, increasing the overall rate of reaction.

Explanation:

I hope this helps :)

What is smaller? WHY?
a Atom or Electron

Answers

electron, because they’re about 1/2000 the mass of a proton or nuetron

Neon in a piston is compressed to a volume of 14L its original volume was 22 L at 11.2 atm find the new pressure in atm

Answers

I love chem!!! Hopefully I got it right for u I got


In the calculator: 7.127272727

But if u need it in sig figs: 7.1atm

Complete the following equation for the cracking of the alkane C20H42.
C20H42 → 2C4H8 + 2C2H4 +................................

Answers

C8H18

Explanation :
Heavier alkane splits up to smaller alkanes alkenes

3. A 4.00 gram sample of solid gold was heated from 274K to 314K. How much energy was involved?
Heat Capacity of Gold is 0.129J/g°C

Answers

Q = mcΔT = (4.00 g)(0.129 J/g•°C)(40.85 °C - 0.85 °C)
Q = 20.6 J of energy was involved (more specifically, 20.6 J of heat energy was absorbed from the surroundings by the sample of solid gold).

Write a question you have about Titan or about methane that could help you determine what happened to the lake

Answers

Answer: what would swimming in mathane lake on titan feel like.

Explanation:

Both methane and titan are gases that are combustible in nature.

Those gases which are inflammable are called combustible gases.

For example:-

MethaneEthane

These gases have various uses in daily life. these uses as follows:-

CookingDecompositionUsed as fuel

The gas will mix in the lake which harms the aquatic animals. The aquatic animals have a hard time to breath.

Hence, the lake will be polluted.

For more information, refer to the link:-

https://brainly.com/question/25068613

Air pressure doesn't crush you because molecules in air push_________.

Answers

◕‿↼ Hey There!

Answer → Air pressure doesn't crush you because molecules in air push ______ → in all directions ←

✨Hope This Helps!✨

PLEASE HELP ASAP In the past, California has had many droughts. Which part of the water cycle is not active when a drought is occurring?
precipitation

condensation

transpiration

evaporation
?

Answers

Answer :D: evaporation

Explanation: cus i am smart

sorry if i am wrong heh

Which of the following is a correct statement?
1 :Vacuum is an opaque body
2 :Reflection takes place from the polished smooth surfaces
3 :Moon is a luminous body in the sky
4 :A pin hole camera can take pictures on moving objects
5 :Shadows are always inverted

Answers

Answer:

Reflection takes place from the polished smooth surfaces

Explanation:

A vacuum does not refer to an opaque body. An opaque body does not allow light to pass through it while a vacuum is simply empty space without air.

A smooth polished surface often acts as a mirror, it is a good reflector of light.

The moon is a non luminous body in the sky. It merely reflects the light from the sun.

A Pinhole camera can not take pictures of moving objects because it only focuses on any image placed before it.

Shadows are not inverted, the always appear upright.

The pressure in a car tire is 198 kPa at 27C. After a long drive, the pressure is 225 kPa.
What is the temperature of the air in the tire? Assume that the volume is constant.

Answers

I honestly don’t know just what point

Given the reaction: 4 NH3(g) + 5 O2(g) → 4 NO (g) + 6 H2O When 1.20 mole of ammonia reacts, how many moles of water are produced?

Answers

Answer:

When 1.20 mole of ammonia reacts, 1.8 moles of water are produced.

Explanation:

The balanced reaction is:

4 NH₃(g) + 5 O₂(g) → 4 NO (g) + 6 H₂O

By stoichiometry of the reaction, the following amounts of moles participate in the reaction:

NH₃: 4 moles O₂: 5 molesNO: 4 molesH₂O:  6 moles

Then you can apply the following rule of three: if by stoichiometry 4 moles of ammonia produce 6 moles of water, 1.2 moles of ammonia will produce how many moles of water?

[tex]moles of water=\frac{1.2 moles of ammonia*6 moles of water}{4 moles of ammonia}[/tex]

moles of water= 1.8 moles

When 1.20 mole of ammonia reacts, 1.8 moles of water are produced.

Please help me with this!

Answers

Answer:

3.01x10^23

Explanation:

In order to determine the amount of molecules, you have to use Avogadro's number which = 6.02x10^23. To calculate this, multiply the number of moles with Avogadro's number to get the above answer.

Hope this helps!

What do you think happens to the bonds between atoms when substances melt?

Answers

Answer:

As a substance melts, and goes from a solid to a liquid state, the kinetic energy of the molecules increases, and the molecules move faster, and they separate further and further away from each other.  The intermolecluar forces holding the molecules together become weaker.  This is why a liquid can take fill the shape of its container, whereas a solid has a fixed shape.

Explanation:

take your notes man

Other Questions
The actual length of side y is 22cm. Use the scale drawing to find the length of side x. Explain how medicines that you can get without a prescription be more dangerous than those with a prescription. Use evidence from the text to support your answer. what is the answer to this? Read the excerpt from How Hurricanes Form.Hurricanes are often compared to engines. Just like engines, they need a type of fuel. Hurricanes form over warm ocean waters near the equator. For hurricanes, their fuel is warm, moist air. When hurricanes form, the warm, moist air above the ocean rises upward from close to the surface of the water. Because the warm air rises, it results in less air under the surface of the water. This area with less air is known as an area with low pressure.Air from areas surrounding this low pressure space pushes in to the area. This fills the low pressure area. The new air in this space becomes warm and moist and also rises. As the air continues to rise, the air surrounding the space swirls in to take its place. This process of air swirling in to replace air that has risen continues. Eventually, the moisture in the air forms clouds.The wind and the clouds that form create a system. A system is a pattern of weather. The system of clouds and winds continues to spin and grow. The water evaporating from the ocean's warm surface acts as the fuel, which is what helps this spinning and growing. The system rotates faster and faster until the eye of the storm forms in the center area. Ironically, the eye of the storm is the calmest part, and it has very low air pressure. The higher pressure above the hurricane continually flows down into the eye.Select the detail from the excerpt that supports the main idea of this part of the article. (2 points) aHurricanes are often compared to engines. bThe eye of the storm is the calmest part of the storm and has very low air pressure. cThe water evaporating from the ocean's warm surface acts as the fuel. dThis process of air swirling in to replace air that has risen continues. solve these equations 7x 2y = 6-3x + 6y = 18 The three parties in an agency relationship and the function of each are the principal (the person giving the direction), the agent (the person doing the action at the principal's direction), and _____.the third person or beneficiary (the person who benefits from the agent's action)the defendant (the person defending the actions of the agent)the coordinator (the person who deals with the logistics of the action)the administrator (the person in charge of the administration) A chain is wrapped around pulley and pulled with a force of16.0N .The pulley has a radius of 0.20 m. The pulley's rotationalspeed increases from 0.0 to 17.0 rev/min in 5.00s What is the momentof inertia of Pulley? What is the mean absolute deviation of the following set of data?4,6,12,8,10,10,7,8 please help! What is the volume of the cylinder below? The second period at the bottom of the table is called Find the value of x. the organic cafe has 15 pastries for sale, including 6 peach scones. what is the probability that a randomly selected pastry will be a peach scone? Fill in each blank with one of the three phrases: is less than, is equal to, or is greater than.1,742 x 1.000 _______ 1,742 (How Presidents Govern)Is it appropriate for a president to govern through executive orders instead of persuading a majority of Congress to enact a law? How would you alter the system if you were designing the rules for the government? Please, and thank you :) Which of the following is a primary source for scientific information? O A. Doctoral theses OB. A handbook of scientific facts O C. Reviews of scientific studies D. Public opinion about a scientific issue For this structural characteristic, decide if it is a characteristic of DNA , a characteristic of RNA , a characteristic of both DNA and RNA , or a characteristic of neither DNA nor RNA .It contains thymine as a base. Which statement best explains why Florida and New York have the same amount of electoral votes?(If you need the answer choices look below)A. They are both swing states.B. The popular vote in each state was very similar in 2012.C. Their population sizes are similar.D. They have been states for approximately the same amount of time.{NO FILES} A density graph for all of the possible temperatures from 60 degrees to 160 degrees can be used to find which of the following?A.The probability of a temperature from 30 degrees to 120 degreesB.The probability of a temperature from 90 degrees to 180 degreesC.The probability of a temperature from 30 degrees to 90 degreesD.The probability of a temperature from 90 degrees to 120 degrees what is the asnwer ot this problem If a pizza that is 12 inches in diameter provides three full meals, how many meals are provided by a pizza that is 20 inches in diameter?