Chemistry High School

When 0.25 moles of NH3 are produced according to the reaction below, how many moles of H2 must have reacted?
N2 + 3 H2 --> 2 NH3
O 1.5 moles H2
O 0.38 moles H2
O 0.25 moles H2
O 0.17 moles H2

When 0.25 Moles Of NH3 Are Produced According To The Reaction Below, How Many Moles Of H2 Must Have Reacted?N2

Answers

Answer 1

Answer:

Explanation:

by stoichiometry

nNH3/2=nH2/3

0.25/2=nH2/3

nH2=0.25×3/2

nH2=0.375 mol

so its 0.38 mol

Answer 2

Answer:

I have this quiz rn I will try 0.38 if it is right I’ll edit this and say that

Explanation:

Related Questions

Meg used two examples to represent two different states of matter.
Example 1: Young children dancing slowly around one another
Example 2: Newborn babies sitting in their given spots in a crib
Which statement is correct? (1 point)
a
Example 1 represents a gas and Example 2 represents a liquid.
b
Example 1 represents a liquid and Example 2 represents a gas.
c
Example 1 represents a liquid and Example 2 represents a solid.
d
Example 1 represents a solid and Example 2 represents a liquid.

Answers

Answer:

c  Example 1 represents a liquid and Example 2 represents a solid.

Explanation:

Example 1: Young children dancing slowly around one another

The young children dancing slowly around one another can be pictured as the flow of liquid. In liquids, the molecules are held about weakly and they slide on top of each other. They are held by weak attractive forces. This is clear picture of a liquid.

Example 2: Newborn babies sitting in their given spots in a crib

This is clear example of a solid. In a solid the molecules are held about a fixed spot. The attractive forces in liquids is very great and the molecules therein do not move about randomly.

With over 6 billion people living on Earth, it is common for two people to have the same DNA.
True
ОR
False

Answers

This answer would be false

What is the name of the group that contains potassium?
O Noble Gases
O Halogens
O Alkaline Earth Metals
O Alkali Metals
Transition Metals

Answers

Answer:

Alkali Metals

Explanation:

explain why the reaction between lead (II) nitrate and concentrated sulphuric (VI) acid starts and stops immediately?​

Answers

Answer:

The reaction produces insoluble lead (II) sulphate which coats the surface of lead (II) nitrate  [Pb(NO3)]

Which subatomic particles are found in the nucleus of an oxygen atom?


F Neutrons and Electrons

G Electrons and Protons

H Protons and Neutrons

J Protons, Neutrons, and Electrons

Answers

Answer:

the answer is protons and neutrons

Explanation:because

The subatomic particles are found in the nucleus of an oxygen atom are  Protons and Neutrons. Thus, option H is correct.

What are subatomic particles?

An electron is defined as a subatomic particle which is charged negatively either bound to an atom or not it means free. The nucleus of an atom is made up of electron, proton and neutron. The electron is a basic particle and electron is not made of anything.

The nature of electron is free it means they are present freely in nature and consist of an atom.The main function of electron is that they play the role of negatively- charged component of an atom.

The electrons are primary source of current conducting and electrons number as well as atomic number of an element is always same or equal. There is no size of electron but the mass of electron is 9×10^-31.

Therefore,The subatomic particles are found in the nucleus of an oxygen atom are  Protons and Neutrons. Thus, option H is correct.

Learn more about subatomic particles here:

https://brainly.com/question/13303285

#SPJ2

What is a non-example of a nucleus? Please give me a non-living thing.

Answers

Answer:

They are prokaryotes and both have tough cell walls. ◦ The cytoplasm contains ribosomes, but no organelles. ◦ There is no nucleus for organisms in this category.

Explanation:

Answer:

rock- non living

( Prokaryotes don't have a nucleus)

Explanation:

A wave with a small wavelength has a high frequency.
options:

True
False

Answers

Answer: I just did the quiz, the answer is True.

7. The atomic number equals the number of blank or blank in a stable atom of an element.​

Answers

Answer:

Atomic Number

Neutral atoms of an element contain an equal number of protons and electrons. The number of protons determines an element's atomic number (Z) and distinguishes one element from another.

Explanation:

Which statement describes a positive effect of selective breeding? A. Some desirable traits in a population can disappear. B. Offspring can be prone to genetic diseases. C. Parents can pass on useful traits to offspring, D. A population can end up with a lack of genetic diversity .​

Answers

Answer:

C. Parents can pass on useful traits to offspring

Explanation:

Answer:

The Answer is C

Explanation:

show how acid and base given below dissociates in water​

Answers

Answer:

HOME is acid

KOH is base

which bond is the strongest ​

Answers

Answer:

C

Explanation:

When two atoms share electrons, a covalent bond is formed. The more electrons shared between atoms, the stronger the bond. Single bonds have two electrons shared, double bonds have four electrons shared, and triple bonds have six electrons shared.

Therefore, triple bonds are the strongest as they require more energy to break.

Hope that helps.

Question: How hot is the sun?

Answers

Answer:

5,778 K

Explanation:

What is the volume of a 25 g object with a density of 9.1 g/mL? please help me​

Answers

Answer:

The answer is 2.75 mL

Explanation:

The volume of a substance when given the density and mass can be found by using the formula

[tex]volume = \frac{mass}{density} \\ [/tex]

From the question we have

[tex]volume = \frac{25}{9.1} \\ = 2.747252...[/tex]

We have the final answer as

2.75 mL

Hope this helps you

Under a certain set of conditions, the percent yield of a reaction that produces carbon dioxide is 75.0%. What mass in grams of CO2 will actually be recovered if the theoretical yield is 26.7 grams?

Answers

Answer:

Actual yield = 20.03g

Explanation:

[tex]% yield = 100.\frac{actual yield}{theoretical yield}[/tex]% [tex]yield[/tex] = [tex]100. \frac{actual \ yield}{theoretical \ yield}[/tex]

Actual yield = % yield.(theoretical yield) / 100

Actual yield = 75.26.7/100

Actual yield = 20.025

Answer: I got 20.025 and then I rounded it to 20.0

Explanation:

The volume of an object is 55mL in this city is 30g/mL. what is its mass

Answers

Answer:

Mass = 1650g

Explanation:

30g per mL is the density I suppose...

Solve for m!

30g/mL = m/55mL

Multiply by denominator to get numerator!

30* 55 =1650g

m = 1650g

Brainliest Appreciated!

will give brainliest if answered correctly
Subject is SCIENCE

Answers

Answer:

Gram

Centi-

Centimeter

Kilogram

Decimeter

Liter

Decimal System

Kilo-

Kilometer

Area

which is not a redox reaction?

a. Formation of ammonium sulphate from ammonia and sulphuric acid
b. formation of nitrogen monoxide from ammonia
c. formation of sulphuric acid from sulphur
d. formation of zinc from zinc sulphide ​

help me please

Answers

Answer:

D. formation of zinc from zinc sulphide ​

Explanation:

A redox reaction could be explained as an artificial reaction in which electrons are moved between two reactants partaking in it. This substitution of electrons can be recognized by examining the variations in the oxidation states of the reacting classes. The generation of hydrogen fluoride is an illustration of a redox reaction. We can crack the reaction down to investigate the oxidation and loss of reactants.

1. H2SO4, sulfuric acid, contains three different types of atoms: hydrogen (H), sulfur (S), and oxygen (O). Each of these atoms represents a different . Since the three types are combined in a fixed ratio, this means that H2SO4 is a(n) molecule. 2. The smallest unit of matter that retain all of the physical properties of that type of matter is a(n) atom. 3. is anything that occupies space and/or has any substance. 4. If two or more atoms are bonded together, they form a(n) . 5. The scientific study of matter is called . 6. Within a plant, water (H2O) and carbon dioxide (CO2) can be combined (using the energy of sunlight) to produce glucose (C6H12O6) and oxygen (O2). If you were to write out this chemical reaction, water and carbon dioxide are each an example of a(n) while glucose and

Answers

Answer:

The blanks can be completed with words in the following sequence

1) elements

compound

2) atom

3) matter

4) compound

5) chemistry

6) reactants

product

Explanation:

In H2SO4, atoms of hydrogen, sulphur and oxygen represent different elements that are combined to form the compound.

The smallest indivisible unit of matter that still retains all the properties of matter is an atom. Matter is anything that has weight and occupy space.

Atoms combine in fixed ratios to form compounds. Chemistry studies matter scientifically and pays specific attention to the changes that matter undergoes.

Considering the reaction of photosynthesis, water and carbon dioxide combine to give glucose so the water and carbon dioxide  are reactants while the glucose is the product of the reaction.

if a star were 36 trillion miles from the earth it would be about ___ light years from the earth​

Answers

Answer:

6.12light years

Explanation:

Given parameters:

Distance of star from earth  = 36 trillion miles

Unknown:

Distance in light years  = ?

Solution:

A light year is the distance light travels in one year.

  1 mile  = 1.7 x 10⁻¹³ light years

 36 trillion miles  = 36 x 10¹² x 1.7 x 10⁻¹³ light years

                             = 6.12light years

which of the following metals are more reactive than mercury? Select all that apply
a. silver
b. iron
c. lithium
d. potassium

Answers

The answer is A silver is a metal that are more reactive then mercury

A compound is made of two or more different atoms joined together. which image would best fit

Answers

Answer:

Where is your images?

Explanation:

cant solve the prblm without ur images

Match the term (exothermic) with the correct definition.

energy goes into the chemical and cool downs the surrounding area.

energy leaves the chemical and cools down the surrounding area

energy leaves the chemical and heats up the surrounding area

Answers

Answer:

energy leaves the chemical and heats up the surrounding area

Explanation:

What are the alkaline earth metals?
A. Group 2 elements
O B. Group 18 elements
C. The transition metals
D.
up 1 elements

Answers

The answer is A. Group 2 elements

Use your answers from questions 1–3 as the basis for the first section of your lab report. This section provides your reader with background information about why you conducted this experiment and how it was completed. Outline the steps of the procedure in full sentences. It also provides potential answers (your hypothesis/es) relative to what you expected the experiment to demonstrate. This section should be 1–3 paragraphs in length.

Answers

Answer:

1-state what the lab is about, that is, what scientific concept (theory, principle, procedure, etc.) you are supposed to be learning about by doing the lab. You should do this briefly, in a sentence or two. If you are having trouble writing the opening sentence of the report, you can try something like: "This laboratory experiment focuses on X…"; "This lab is designed to help students learn about, observe, or investigate, X…." Or begin with a definition of the scientific concept: "X is a theory that…."                        2-give the necessary background for the scientific concept by telling what you know about it (the main references you can use are the lab manual, the textbook, lecture notes, and other sources recommended by the lab manual or lab instructor; in more advanced labs you may also be expected to cite the findings of previous scientific studies related to the lab). In relatively simple labs you can do this in a paragraph following the initial statement of the learning context. But in more complex labs, the background may require more paragraphs.

Explanation:

Answer: the correct answer is A

Explanation:

What percentage of Carbon (C) is present in one molecule of
Dichlorodifluoromethane (CF2Cl2), commonly known as Freon, an anti-freezing agent
used in automobiles.
Please round everything to whole numbers for this question. Use the following
masses in your calculations:
C = 12
F = 19
Cl = 35

Answers

The percentage of Carbon (C) present in one molecule of

Dichlorodifluoromethane (CF₂Cl₂) : 10%

Further explanation

Proust stated the Comparative Law that compounds are formed from elements with the same Mass Comparison so that the compound has a fixed composition of elements

With this law, we can calculate how many grams an element is needed to make a compound with a certain mass, as desired

MW Dichlorodifluoromethane (CF₂Cl₂) :

=12+2.19+2.35=120 g/mol

[tex]\tt \%mass~C=\dfrac{12}{120}\times 100\%=10\%[/tex]

Chemistry, please help

Answers

Answer:

Name ; Nickel(ii)Hydroxide

Formula;NI3O6

               

Explanation:

what particles are arranged in a regular pattern

Answers

Explanation:

Phases of Matter

Question Answer

Vaporization that occurs at and below the surface of a liquid boiling

A solid that is made up of crystals in which particles are arranged in a regular, repeating pattern crystalline solid

A solid made up of particles that are not arranged in a regular pattern amorphous solid

which statement below best describes the movement of particles in a gas?
A- the particles vibrate in a fixed position
B-the particles slide easily past one another
C- the particles move freely and are well separated
D- the particles move freely with little free space between the particles.​

Answers

Answer:

c the particles are spaced out and move freely

Explanation:

Answer:

C). The particles move freely and are well separated

Explanation:

Which statement correctly describes a characteristic that a scientific measurement tool should have

Answers

Answer:

to be procice, it must use small units to take mesurements

Explanation:

a.pex

How many atoms of nitrogen are in the chemical formula Ni(NO3)2?

Answers

Answer:

2

Explanation:

bc the 2 that's after a bracket refers to both oxygen and nitrogen, making oxygen 6 bc it already has a 3(3×2=6)

Answer:

2

Explanation:

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