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

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

Dichlorodifluoromethane (CF₂Cl₂) : 10%

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]

Answer:

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

Hope this helps you

Answer:

5,778 K

Explanation:

Answer:

C. Parents can pass on useful traits to offspring

Explanation:

Answer:

The Answer is C

Explanation:

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:

Answer:

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

Explanation:

a.pex

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:

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

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.

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

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:

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.

Answer:

HOME is acid

KOH is base

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.

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

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:

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:

Answer:

c the particles are spaced out and move freely

Explanation:

Answer:

C). The particles move freely and are well separated

Explanation:

Answer:

Name ; Nickel(ii)Hydroxide

Formula;NI3O6

Explanation:

Answer:

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

Answer:

Alkali Metals

Explanation:

Answer:

Gram

Centi-

Centimeter

Kilogram

Decimeter

Liter

Decimal System

Kilo-

Kilometer

Area

Answer:

energy leaves the chemical and heats up the surrounding area

Explanation:

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!

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.

Answer:

Where is your images?

Explanation:

cant solve the prblm without ur images

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.