How many moles of H 2 will I need to make 5 moles of NH3?
12 SSO

How Many Moles Of H 2 Will I Need To Make 5 Moles Of NH3?12 SSO

Answers

Answer 1

Answer:

7.5 moles of hydrogen is required

Explanation:

Given data:

Number of moles of H₂ needed = ?

Number of moles of NH₃ = 5 mol

Solution:

Chemical equation:

N₂ + 3H₂     →     2NH₃

Now we will compare the moles of ammonia and hydrogen.

         NH₃       :         H₂  

          2           :          3

          5           :         3/2×5 = 7.5 mol

Thus, 7.5 moles of hydrogen is required.


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Calculate the number of atoms in 18.34 grams of sulfur. Answers in scientific notation
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Answer:

The answer is 1.834 * 10

Explanation:

why does condensation not occur on the outside of a warm glass of water?

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Answer:

its called vapor. It can hold so much than colder eater based on the weather. For example if its cold it can heat up faster but if its hot it will maybe stay the same

Do the following ! I'LL MARK THE BRAINLEST!
ITS SCIENCE!

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Answer:

it's easier to look it up

Explanation:

OMG please help I hate this.​

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I think the correct answer is D

Answer:

A, D

Explanation:

Water evaporates into gas which requires an increased amount of energy.

Not B because: Dry ice and ice undergo sublimation, which is different from evaporation.

Not C because: As a result of the water boiling, the energy in the environment sees an *increase*, rather than a decrease.

Your neighbor has a loud party at 3:00 A.M. The police tell her it is illegal to make noise at this late hour. This is an example of
o the government censoring your neighbor's first amendment freedoms
your neighbor legitimately exercising her first amendment rights
O restrictions on first amendment rights for the good of the community
the police abusing their power?

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Hahahhahahsshhaahhrbebebedjdidodi

How many moles are in 5.00 x 1024 atoms of N. Watch your significant figures.

Question 1 options:

8 atoms N


8.30 moles N


8 moles


8.30 atoms N

Answers

ayo

you need to just

5.00 x 10^24 ÷ 6.022 x 10^23 = 8.3028894×10^46

^

this is the n number

so the anwer is you bottom feeders is (8.30 moles N)

Need a little help with this

Answers

Answer:

Lithium

Explanation:

As you go from left to right the atomic radius decreases.

As you go from top to bottom the atomic radius.

A. Carbon is farther right in the 2nd period.

B. Lithium is the first one in the 2nd period!

C. Neon is the farthest one on the right in the 2nd period.

D. Potassium is not even in the 2nd period

Is the following chemical equation balanced? 2Na + 2H20 - 2NaOH + H2 O yes​

Answers

Hello KittyCat2004!

Reactants                            Products

Na = 2 atoms                       Na = 2 atoms

H = 4 atoms                          H = 4 atoms

O = 2 atoms                          O = 2 atoms

Because there are equal numbers of Na, H and O atoms on the reactant and product side, the chemical equation is balanced.

Base changes phenolphthalein to pink it is true or false​

Answers

Answer:

It’s false

Explanation:

it could be true if the question mentioned alkaline solution

Answer:

True

Explanation:

Phenolphthalein is colorless in the presence of an acid and turns pink in the presence of a base.

Typically ____
can not be removed from the atom.
A)
electrons
B)
neutrons
C)
protons
D)
tachyons
I took the test it’s PROTONS

Answers

Answer:

Protons

Explanation:

Typically protons cannot be removed from the atom. Removing protons from an atom will completely change the atom as it will become another element entirely.

In an atom, protons are held by strong nuclear forces.

Within an atom, protons are the positively charged particles. Together with the neutrons, they are found in the nucleus of an atom. The number of protons within an atom is the atomic number of the atoms and it determines the nature and type of atom it is. Protons cannot be removed from an atom due to the strong binding force holding them together in place.

Answer:

protons

Explanation:

What is the overall trend for ionization energy on the periodic chart?

Answers

Answer:

The general trend is for ionization energy to increase moving from left to right across an element period. Moving left to right across a period, atomic radius decreases, so electrons are more attracted to the (closer) nucleus.

Explanation:

Brainliest plz

Answer:

Ionization energy increases across the period and decreases down the group.

Charles's law describes the relationship of the volume and temperature of
gas at a constant mass and pressure. According to this law, what would
happen to the volume of the gas if its temperature increased from 150 K to
300 K?

A. The volume would increase from 150 mL to 300 mL.
B. The volume would be reduced by half.
C. The volume would decrease by 150 mL.
D. The volume would double.

Answers

Answer:

Charles's law is: When the pressure on a sample of a dry gas is held constant, the Kelvin temperature and the volume will be in direct proportion. So the volume would increase

3. How many moles are in 100. grams of nitrogen gas (N2)?

I NEED HELO ASAP PLEASE

Answers

Answer:

12 moles

Explanation:

(b) 28.2 yd to centimeters

Answers

Answer:

2578.608 centimeters in 28.2 yards.

Explanation:

There are 91.44 centimeters to a yard. Multiplying 91.44 by the number of yards, we get the number of centimeters per yards.

91.44(28.2) = 2578.608

Answer:

hruejhehee7 suhdbdudud d d

Explanation:

jejeij3j3n3jeij

How many significant figures are in the number 90027.00?

Answers

Answer:

Scientific Notation: 3.45 x 10^5

E Notation: 3.45e5

Explanation:

Which organ system supports the body and allows it to move?

Answers

That would be the skeletal system, hope this helps ^^

Can y’all answer these for me I’m in a hurry so I don’t fail this class

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Answer:

what I can't understand what you're saying lol

Explanation:

be my friend lol

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36.0 g of Be contains how many moles?

Answers

Answer:

Explanation:

4

Explain how the earth recycles and reuses it's own crust (Make it a paragraph)

Answers

Answer:

The interaction between the tectonic and the hydrologic systems causes constant recycling of the materials of the Earth's crust. Rocks are heated, metamorphosed, melted, weathered, sediment is transported, deposited and lithified, then it may be metamorphosed again in yet another cycle.

Explanation:

Ask the browser my friend

Consider the following reaction, which occurs at standard state:
2CI(g) -- CI2(g) H= -243.4 kJ
If 15.0g of CI is concerted to chlorine, determine the heat released from this reaction.

Answers

Answer:

The heat energy released from the reaction is approximately 51.4791 kJ

Explanation:

The given parameters are;

The heat of the reaction of 2Cl (g) → Cl₂ (g) = -243.4 J

The given mass of Cl being converted to chlorine gas, Cl₂ = 15.0 g

From the reaction for the heat of formation, we have;

2 moles of chlorine produces 1 mole of Cl₂ to release 243.4 kJ of energy per mole of Cl₂

The mass of 1 mole of Cl ≈ 35.453 g

Therefore, from number of moles, n = Mass/(Molar Mass), we have;

The number of moles of chlorine, in 15.0 g of chlorine = 15.0/35.453 ≈ 0.423 moles

Therefore, given that 2 moles of Cl produces 1 mole of Cl₂, we have;

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The heat energy released from the reaction is therefore, H ≈ 0.2115 × 243.4 kJ = 51.4791 kJ.

7. When substances are combined to form a mixture, they

A. keep their original properties

B. form new chemical bonds

C. form a new compound

D. cannot be separated physically

Answers

Answer: keep their original properties

Explanation: a mixture is, by definition, a combination of substances that do not interact, so they do not form new bonds/new compounds. They can usually be separated physically.

Mixtures are combinations of two or more individual components. However they can be separated physically based on their properties. They can form new bonds and compounds. Hence, options B and C are correct.

What are mixtures?

Mixtures are formed by the combination of two or more substances by physical adherence or chemical bonds. They can be of homogeneous or heterogeneous.

Homogeneous mixtures appears as a single compound such as salt or sugar water they can form in one phase. Whereas, heterogeneous mixtures form two phases and appears to be separate.

There are many analytical tools to separate the components of mixtures such as chromatography, distillation, evaporation etc. The properties of mixtures will be different from that of the individual components. Hence, options B and C are correct.

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how is energy transfered from one piece of metal to another

Answers

Answer:

The positive and negative electrons attract leaving a shock and heat travels faster through metal than any other material such as plastic, wood, etc.

Explanation:

Answer:

The electrons in a piece of metal can leave their atoms and move about in the metal as free electrons. ... The hotter the metal, the more kinetic energy these vibrations have. This kinetic energy is transferred from hot parts of the metal to cooler parts by the free electrons.

Explanation:

PLease guys, please. I really need help

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Here is it 4, 2, 5, 1, 3

There are 4 different types of sublevels: s,p,d,f true or false

Answers

I think it is true because level 4 has 4 sublevels which is s, p, d and f.

Calculate the mass of chromium produced from 5 tonnes of Cr2O3-

Answers

Answer:

Explanation:

Cr₂O₃ ( chromium oxide )

Mass of Cr₂O₃⁻ = 2 x 52 + 3 x 16 = 104 + 48 = 152

152 gram chromium oxide contains 104 grams chromium

152 tonnes chromium oxide contains 104 tonnes chromium

5 tonnes chromium oxide contains 104 x 5 / 152 tonnes chromium

mass of chromium required =  104 x 5 / 152 tonnes

= 3.42 tonnes .

Write the following in standard notation: 2.8 x 10-5s.

Answers

Answer:

2.8 X 10-5s in standard notation is 28-5s

Explanation:

Multiply 2.8 by 10

A photon has an energy of 4.0 x 10-19 Joules. What is the frequency of the radiation?​

Answers

6.04 x 10^14. See attached work.

In the electromagnetic spectrum, the energy and frequency of radiation is given as, E=hυ where frequency is 0.603 ×10¹⁵ hertz.

What is electromagnetic spectrum?

The electromagnetic radiation consists of waves made up of electromagnetic field which are capable of propogating through space and carry the radiant electromagnetic energy.

The radiation are composed of electromagnetic waves which are synchronized oscillations of electric and magnetic fields . They are created due to change which is periodic in electric as well as magnetic fields.

In vacuum ,all the electromagnetic waves travel at the same speed that is with the speed of air.The position of an electromagnetic wave in an electromagnetic spectrum is characterized by it's frequency or wavelength.They are emitted by electrically charged particles which undergo acceleration and subsequently interact with other charged particles.The relation is given as,E=hυ  where on substitution υ =E/h=4×10[tex]^-19[/tex]/6.626×10[tex]^-34[/tex]=0.603×10¹⁵ hertz

Thus, frequency of radiation is 0.603 ×10¹⁵ hertz.

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An adult dog has less inertia than a puppy.

True
False

Answers

Answer: True

Explanation: Hopes this helps- Lily ^_^

Nistu is cooking rice in a pot. When she leaves the pot on the stove for a while, the temperature of the rice increases. What happens to the molecules of the rice when the temperature of the rice increases?

Answers

Answer:

Their average kinetic energy increases

Explanation:

The average kinetic energy of the rice molecules increases as the pot is left on the cooking stove.

Heat is transferred to the pot by conduction from the heat source. The heat is then transferred to the rice in the cooking pot by convection.

As the water in the pot heats up. The rice gains thermal energy. This causes the molecules of the rice particles to start vibrating. As the molecules vibrate about their fixed position, their thermal energy continues to increase.Therefore, the amount of heat absorbed by the rice increases with time and this actually cooks the food.

Answer:

The energy of the molecules in the rice increases.

Explanation:

A gas has a pressure
of 0.12 atm at 21.0°C.
What is the pressure at
standard temperature?

Answers

Answer:

0.12 it is 32.1 *C

Explanation:

at the standard temp

The pressure of the gas at 21°C is 1 atm. Then the pressure at the standard temperature i.e., at 25°C or 298 K is 0.14 atm.

According Gay- Lussacs law, the pressure of the gas is directly proportional to the temperature of the gas at constant volume.

hence, P1/T1 = P2/T2.

given,

P1 = 0.12 atm

T1= 21 °C

T2 = 25°C

then,

P2 = P1 T2/T1

     = (0.12 atm ×21 °C)25 °C

     = 0.14 atm

The pressure will increase from 0.12 atm to 0.14 atm when the temperature reaches its standard point.

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