What information does an energy diagram give?

A. It shows the transfer of potential energy to kinetic energy.
B. It shows how concentrations of reactants affect the energy.
C. It shows the rate of the reaction as a function of time.
D. It shows the energy requirements needed in order for a reaction to
occur.

Answer:

See explanation

Explanation:

Solvolysis is a chemical reaction in which the solvent, such as water or alcohol, is one of the reagents and is present in great excess of that required for the reaction.  The solvents act as or produce electron-rich atoms or groups of atoms (nucleophiles) that displace an atom or group in the substrate molecule(Encyclopedia Britannica).

For the two reactions, the organic product is the same(the product is drawn in the second image attached). The both reactions occur by SN1 mechanism since the substrate is a tertiary alkyl halide. The nucleophile is CH3OH and the rate of reaction depends on the concentration of the alkyl halide and independent of the concentration of methanol present.

Therefore, changing the volume of the solvent has no effect on the rate of reaction. The two reactions proceed at exactly the same rate since the initial concentration of the alkyl halide is the same for both reactions.

Answer:

hello your question is incomplete attached below is missing part

answer : Pauli's exclusion principle

Explanation:

The principle that was disobeyed is Pauli's exclusion principle this is because the  Pauli's exclusion principle states that no two electrons can have the same set of quantum number.

In Box A the two electrons , have the same spin which means  they have the same quantum number ( disobeys Pauli's exclusion principle )

Answer:

Volume of the bar=10 X 4 X 5=200 cm^3

Mass=200 X 19.3=3,860 grams

Mass=3.86 Kilograms

Explanation:

Answer:

25.88 g of F₂.

Explanation:

From the question given above, the following data were obtained:

Number of molecules of F₂ = 4.10×10²³ molecules

Mass of F₂ =?

From Avogadro's hypothesis,

1 mole of F₂ = 6.02×10²³ molecules

Next, we shall determine the mass of 1 mole of F₂. This can be obtained as follow:

1 mole of F₂ = 2 × 19 = 38 g

Thus,

38 g of F₂ = 6.02×10²³ molecules

Finally, we shall determine the mass of 4.10×10²³ molecules of F₂. This can be obtained as follow:

6.02×10²³ molecules = 38 g of F₂

Therefore,

4.10×10²³ molecules = 4.10×10²³ × 38 / 6.02×10²³

4.10×10²³ molecules = 25.88 g

Thus, 25.88 g of F₂ contains 4.10×10²³ molecules.

Answer:

3A     +     B      →     C      +      2D

Explanation:

Recall that:

[tex]\text{molarity} = \dfrac{no \ of \ moles}{volume \ of \ the \ solution}[/tex]

So;

[tex]\text{no \ of \ moles= molarity * volume \ of \ the \ solution}[/tex]

From the above table given in the question; we can have the following table:

Run            moles of A            moles of B     Limiting reagent

1                 0.5×  10⁻²                 0.5×  10⁻²           A and B are equal

2               1.0 0.5×  10⁻²             0.5×  10⁻²          A

3.               1.5×  10⁻²                   0.5×  10⁻²          A

4               2.0×  10⁻²                    0.5×  10⁻²         B

Also, provided that the stoichiometric coefficients for C and D = 1 & 2 respectively.

Then, the stiochiometric ratio for A:B = [tex]\dfrac{1.5\times 10^{-2}}{0.5 \times 10^{-2}}[/tex]

[tex]= \dfrac{3}{1}[/tex]

Thus, the balanced equation is:

3A     +     B      →     C      +      2D

Answer:

maybe try 4.002602, good luck

Answer:

False

Explanation:

Disassociation of Dinitrogen tetraoxide is shown below -

N2O4(g) ⇌ 2NO2(g)

Nitrogen dioxide gas is deep red-orange in color. However, in presence of aerosols, this gas appears reddish-brown in color.

Hence the given statement is False

Answer:

The volume of a krypton atom in liters = 2.86 x 10⁻²⁷ liters

Explanation:

The volume of a sphere is given by the formula below:

V = 4/3 (π)(r³)

where π = 22/7, radius of the krypton atom = 88.00 pm

However, 1 picometre (pm) = 1 x 10⁻¹⁰ cm, converting 88.00 pm to cm will be:

88.00 pm x 10⁻¹⁰ cm/ 1 pm = 88.00 x 10⁻¹⁰ cm

Substituting the values above in order to determine the volume of a krypton atom:

V = 4/3 x (22/7) x (88.00 x 10⁻¹⁰ cm)³

V = 2.86 x 10⁻²⁴ cm³

However, 1000 cm³ = 1 liter

Therefore, 2.86 x 10⁻²⁴ cm³ in liters will be:

2.86 x 10⁻²⁴ cm³/ (1000 cm³/1 liter) = 2.86 x 10⁻²⁷ liters

The volume of a krypton atom in liters = 2.86 x 10⁻²⁷ liters

Answer:

In thin-layer chromatography, the retention factor (Rf) is used to compare and help identify compounds. The Rf value of a compound is equal to the distance traveled by the compound divided by the distance traveled by the solvent front (both measured from the origin).

Answer: see below

Explanation: filling the blanks in this order

point source

Pollution

Wastewater

waste

Nonpoint source

Contaminants

fertiliser

suburban yards

Answer:

The answer is "Choice A".

Explanation:

In this question, the choice A is wrong because when the copper panels on houses produce a patina (copper oxide) through occur as a consequence of reactions from oxygen and water in the air, these reaction does not have low activation energy because lower activation energy that is stored in a faster response rate.

Answer:

sir/ma'am, i know i'm a NOOB at this kind of stuff but i believe it's oxygen.

Explanation:

i can't really remember the answer since it's been a week or so that i done this problem, it's between nitrogen and oxygen, though, i believe it's oxygen.

if ya don't believe me or trust me, then here's the link to help ya:

https://socratic.org/questions/what-elements-would-have-similar-properties-to-sulfur#628367

Answer:

Mass of 6.25 moles of copper(II) nitrate = 1025 grams

Explanation:

Let us calculate the molar mass of Copper (II) nitrate

Molecular formula = Ca(NO₃)₂

Atomic mass of Ca = 40 g/mol

Atomic mass of N =14 g/mol

Atomic mass of O = 16 g/mol

molar mass of Ca(NO₃)₂ = 40 + (14 X2) +( 6X16) = 164 g/mol

moles=\frac{mass}{molarmass}moles=

molarmass

mass

therefore

mass = moles X molar mass

mass = 6.25 X 164 = 1025 grams

Answer:

A consumer

Explanation:

Answer:

primary consumers

Explanation:

Answer:9.03*10^23

Explanation:

Answer:

74.87% Carbon

Explanation:

The molecular mass of CH4 is 16.042 g/ mole.

X=(100 × 12.01) / 16.042= 74.87%  

Answer:

[tex]\boxed {\boxed {\sf 74.87 \% \ C}}[/tex]

Explanation:

We want to find the mass percent composition of carbon in methane: CH₄

First, we must calculate the gram formula mass, also called the molar mass. Use the values for mass found on the Periodic Table. Look for carbon and hydrogen.

There is no subscript after C, so there is just 1 atom. There is a subscript of 4 after H, so there are 4 atoms of hydrogen. We must multiply hydrogen's mass by 4.

Calculate the percent composition.

[tex]\frac {mass \ of \ part}{mass \ of \ whole} *100[/tex]

The part is the carbon, or 12.011 grams.

The whole is the entire compound, CH₄, or 16.043 grams.

[tex]\frac { 12.011 \ g }{ 16.043 \ g} *100[/tex]

[tex]0.748675435*100\\74.8675435[/tex]

Let's round to the nearest hundredth. The 7 in the thousandth place tells us to round the 6 to a 7.

[tex]74.87 \% \ C[/tex]

The mass percent of carbon is 74.87%

Answer:

Transition metals differ from the non-transition metals such as magnesium in the following ways;

Explanation:

Transition elements comprise of those elements in the d-block of the periodic table and which have incompletely-filled d-orbitals.

The transition elements are all metals and has the characteristic physical properties of metals such as;

However, their chemical properties differ from those of the non-transition metals such as magnesium in the following ways;

Answer:

35.55 to nearest 0.01 or

hundredth place

Answer:

Try this for answer 3082.24

Answer:

NaCi + LiCl is the correct answer

The pairs of aqueous solutions produce a precipitate is NaCl + LiCl will produce a precipitate.

Aqueous solution is defined as any solution in which water is used to dissolve or break down a substance.

There are basically three types of aqueous solution

Non aqueous solution is defined as a solution formed by dissolving a solute in a solvent other than water.

There are basically four types of non aqueous solution

Thus, the pairs of aqueous solutions produce a precipitate is NaCl + LiCl.

To learn more about aqueous solutions, refer to the link below:

https://brainly.com/question/26856926

#SPJ2

Answer:

Natural selection changes how well a species can survive in an environment.

Explanation:

I'm not the best at biology, but natural selection a term we use that's describes nature's way of choosing the strongest to survive. The species with the strongest adaptations will survive while the others will die off. For example, if a school of fish was forced to live in a colder habitat than usual, over many years some fish will adapt to that environment and be able to withstand it. But, some fish won't get those adaptations and be killed off. But, future generations will be born with that ability to withstand the cold environment and it would become normal. So, natural selection changes the way a species lives. Hope this helps

Answer:

carpel

Explanation:

the pollen producing part of a flower, usually with a slender filament supporting the anther.

Answer:

A

Explanation:

if the earth slows down then that will give more time to the sun meaning days/nights will be longer

Answer:

Option C Removing Na₂CO₃

Option E Heating the container.

Explanation:

The equation for the reaction is given below:

2NaHCO₃ (s) <=> Na₂CO₃ (s) + CO₂ (g) + H₂O (g)

Enthalpy change (ΔH) = 136 KJ

To obtain more CO₂ do the following:

1. Add more NaHCO₃

From chemical equilibrium, adding more NaHCO₃ means the reactant has increase. Thus, it (the reactant) will react to form more product (CO₂)

2. Removing any of the products. Removing any of the products implies that more reactants are in the reaction vessel than the product. Thus, the reactants will react to produce more products (CO₂)

3. Heating the container. Heating the container will lead to an increase in the temperature of the reaction. Since the enthalpy change (ΔH) is positive it means the reaction is endothermic. Thus, heating the container i.e increasing the temperature will favours the forward reaction i.e more products will be obtained.

NOTE: Pressure has no effect in the reaction system since there is no gaseous reactants.

Considering the options given above, C and E gives the correct answer to the question.

Answer:

Follows are the solution to these question:

Explanation:

Given equation:

[tex]N_2+3H_2 \longrightarrow 2NH_3[/tex]

In this equation:

[tex]1 N_2[/tex] gives [tex]= 2NH_3[/tex]

so,

[tex]3N_2[/tex] gives=  [tex]2 \times 3 = 6 NH_3[/tex]

similarly:

[tex]3H_2[/tex] gives [tex]= 2NH_3[/tex]

So, [tex]6H_2[/tex] gives = [tex]\frac{2}{3}\times 6=4NH_3[/tex]

Its limited reagent is =[tex]N_2[/tex]

The amount of [tex]NH_3[/tex] molecules were formed = 4.

and the amount of  [tex]H_2[/tex] excess molecules are= 1

Answer:

hahahaa i can get the points

Explanation:

yes it is again LOL thanks