Which statement is true about a reversible reaction?

A. It has equal mass of all reactants.
B. It produces salts from acids and bases.
C. It has equal number of products and reactants.
D. It results in an equilibrium mixture of reactants and products.

Answers

Answer 1
The answer is D. Anytime you see a reversible arrow you need to think about equilibrium.
Answer 2

Answer:

D. it results in an equilibrium mixture of reactants and products

Explanation:

took the test


Related Questions

Explain how DNA can provide some evidence for evolution.

Answers

The shared ancestry of life is reflected in DNA and genetic code. DNA comparisons can reveal how closely two species are related. Biogeography. Evolution and geological change are reflected in the global distribution of life and the particular characteristics of island species.

Identify whether each compound is a straight chain, branched chain, or cycloalkane.

Answers

Answer:

the first one is branched, the second one is also branched and the third one is cycloalkane

Answer:

A: straight chain, B: branched chain, and C: cycloalkane.

Explanation:

Question 4 of 10
Match the feature with its description.
Sinkholes
?
Hang from cave ceilings.
Stalagmites
?
Grow from cave floors.
Stalactites
?
Collapsed caves.
Speleothems
?
Cave features.
Speleothems

Answers

Answer:

Stalactites - Hang from caves ceilings

Stalagmites - Grow from cave floors

Sinkholes - Collapsed caves

Speleothems - Cave features

Explanation:

Got it right :)

What makes a light wave different from all mechanical waves?

Answers

Answer:

Light is a transverse wave.

Explanation:

Light waves are not considered mechanical waves because they don't involve the motion of matter. Most of the mathematics and properties of mechanical waves apply to light waves. Light waves are different from mechanical waves, however, because they can travel through a vacuum.

Question 6 of 10
What does it mean when a reaction is spontaneous?
O
A. The reaction requires added energy.
B. The reaction goes to completion.
C. The reaction occurs rapidly.
O O
D. The reaction happens by itself.
SUBMIT

Answers

Answer:

D

Explanation:

Does not require energy ...may be slow or fast....

How are elements organized on the modern periodic table?.

Answers

Answer:

They are organized from least to greatest by their atomic number.

Explanation:

Hope that helps!

Answer:

Explanation:

Elements are listed in numerical order by atomic number. The atomic number is the number of protons in an atom of that element. So element number 1 (hydrogen) is the first element. Every atom of hydrogen has 1 proton. Until a new element is discovered, the last element on the table is element number 118. Every atom of element 118 has 118 protons. This is the biggest difference between today's periodic table and Mendeleev's periodic table. The original table organized the elements by increasing atomic weight.

Each horizontal row on the periodic table is called a period. There are seven periods on the periodic table. Elements in the same period all have the same electron ground state energy level. As you move from left to right across a period, elements transition from displaying metal characteristics toward nonmetallic properties.

Each vertical column on the periodic table is called a group. Elements belonging to one of the 18 groups will share similar properties. Atoms of each element within a group have the same number of electrons in their outermost electron shell. For example, elements of the halogen group all have a valence of -1 and are highly reactive.

There are two rows of elements found below the main body of the periodic table. They are placed there because there wasn't room to put them where they should go. These rows of elements, the lanthanides and actinides, are special transition metals. The top row goes with period 6, while the bottom row goes with period 7.

Each element has its tile or cell in the periodic table. The exact information given for the element varies, but there is always the atomic number, the symbol for the element, and the atomic weight. The element symbol is a shorthand notation that is either one capital letter or a capital letter and a lowercase letter. The exception is the elements at the very end of the periodic table, which have placeholder names (until they are officially discovered and named) and three-letter symbols.

The two main types of elements are metals and nonmetals. There are also elements with properties intermediate between metals and nonmetals. These elements are called metalloids or semimetals. Examples of groups of elements that are metals include alkali metals, alkaline earths, basic metals, and transition metals. Examples of groups of elements that are nonmetals are the nonmetals (of course), the halogens, and the noble gases.

What is the function of the outer covering of a plant? a plant's outer covering is involved in reproduction. a plant's outer covering helps reduce water loss. a plant's outer covering is for preying on other plants. a plant does not have an outer covering.

Answers

Answer:

i dont know but good luck beacuse im doing the test and im stuck ngl

Explanation:

Answer:

B

Explanation:

."A ternary covalent compound consists of 3 types of nonmetallic elements in its chemical formula." Which is NOT an example of a ternary covalent compound ? A. Ozone (03)
B. Sucrose (C12H22011)
C. Carbonic acid (H2C03)
D. Ammonium sulfide (NH4)2s

Answers

the answer is a hope this helps

what volume of N2 is required to convert 5.0L of hydrogen gas to ammonia? assume that all gases are at the same temperature and pressure and that the reaction is complete

Answers

Answer:

Approximately [tex]1.7\; {\rm L}[/tex].

Explanation:

Nitrogen [tex]{\rm N_{2}}\, (g)[/tex] reacts with hydrogen [tex]{\rm H_{2}}\, (g)[/tex] at a [tex]1:3[/tex] ratio to produce ammonia [tex]{\rm NH_3}\, (g)[/tex]:

[tex]{\rm N_{2}}\, (g) + 3\; {\rm H_{2}}\, (g) \to 2\; {\rm NH_{3}}\, (g)[/tex].

The ratio between the coefficient of [tex]{\rm N_{2}}\, (g)[/tex] and the coefficient of [tex]{\rm H_{2}}\, (g)[/tex] is:

[tex]\begin{aligned}\frac{n({\rm N_{2}})}{n({\rm H_{2}})} = \frac{1}{3}\end{aligned}[/tex].

Under the ideal gas assumptions, the same ratio would apply to the volume of [tex]{\rm N_{2}}\, (g)[/tex] and [tex]{\rm H_{2}}\, (g)[/tex] in this reaction:

[tex]\begin{aligned}\frac{V({\rm N_{2}})}{V({\rm H_{2}})} = \frac{n({\rm N_{2}})}{n({\rm H_{2}})} = \frac{1}{3}\end{aligned}[/tex].

[tex]\begin{aligned}V({\rm N_{2}})= \frac{1}{3}\, V({\rm H_{2}})\end{aligned}[/tex].

Given that [tex]V({\rm H_{2}}) = 5.0\; {\rm L}[/tex]:

[tex]\begin{aligned}V({\rm N_{2}}) &= \frac{1}{3}\, V({\rm H_{2}}) \\ &= \frac{1}{3}\times 5.0\; {\rm L} \\ &\approx 1.7\; {\rm L}\end{aligned}[/tex].

(Rounded to [tex]2[/tex] significant figures.)

Please answer.
A solar energy project is expected to have capital costs of $995,000, average yearly operating costs of $175,000, and a lifetime of 25 years. If the total production during the lifetime of the project is 89,500,000 kWh, what is the Levelized cost of energy (LCOE)?

a.$0.60 per kWh


b.$0.77 per kWh


c.$0.06 per kWh


d.$0.07 per kWh


Which of the following is a characteristic of Levelized cost of energy (LCOE)?


a. It is the minimum price per kWh at which electricity must be sold to break even over the lifetime of a power-generating project.


b. It is the maximum amount of power that can be produced per dollar over the lifetime of a power-generating project.


c. It is the maximum price per kWh at which electricity must be sold to break even over the lifetime of a power-generating project.


d. It is the minimum amount of power that can be produced per dollar over the lifetime of a power-generating project.


Which of the following statements is true for both solar energy and wind energy?

a. Energy is able to be collected both day and night.


b. Power from this energy source can easily be integrated into existing power grid systems.


c. Power generation using this energy source does not contribute to water pollution.


d. Energy collection equipment can be installed in agricultural areas without affecting crop production.

Answers

The Levelized Cost of Energy of the solar plant is $0.60 per kWh.

Solar energy and wind energy can both easily be integrated into existing power grid systems.

What is Levelized Cost of Energy?

The Levelized Cost of Energy is a measure of the average net present cost of electricity generation for a generating plant over its lifetime.

The Levelized Cost of Energy of the solar energy product is calculated as follows:

Total cost over 25 years = 995,000, + $175,000 × 25 = $5,370,000

Total energy production over 25 years = 89,500,000 kWh

Levelized Cost of Energy = $5,370,000/89,500,000 kWh

Levelized Cost of Energy = $0.60 per kWh

The Levelized cost of energy (LCOE) is the minimum amount of power that can be produced per dollar over the lifetime of a power-generating project.

For solar energy and wind energy, power from both energy sources can easily be integrated into existing power grid systems.

Learn more about energy at: https://brainly.com/question/582060

Answer:

one.

Which of the following statements is true for both solar energy and wind energy?

Power generation using this energy source does not contribute to water pollution.

2.

Which of the following is a characteristic of levelized cost of energy (LCOE)?

It is the minimum price per kWh at which electricity must be sold in order to break even over the lifetime of a power-generating project.

3.

A solar energy project is expected to have capital costs of $995,000, average yearly operating costs of $175,000, and a lifetime of 25 years. If the total production during the lifetime of the project is 89,500,000 kWh, what is the levelized cost of energy (LCOE)?

$0.06 per kWh

Explanation:

if you dont believe me thats all right i did it the answers are 200% you can check it for yourself

Distinguish between single and double replacement reactions and give an example of
each.

Answers

Answer:

Anabolism builds complex molecules from simpler ones, while catabolism breaks large molecules into smaller ones.

Explanation:

The attractions between anions and cations throughout a crystal are known collectively as.

Answers

The attractions between anions and cations throughout a crystal are known collectively as ionic bonds.

What are ionic bonds?

The ionic bonds are a special type of bond where ions (cations and anions) are mutually attracted.

The ionic bonds are fundamental bonds for the development of certain compounds and molecules.

Ionic bonds may be produced between metal compounds that lose electrons (e-) and non-metals that gain e-.

Learn more about ionic bonds here:

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Barium nitrate Ba (NO3)2 is used to produce a green colour in fireworks. It is the product of Barium Hydroxide with HNO3. Propose its balanced chemical equation

Answers

The balanced chemical equation for the reaction between barium hydroxide, Ba(OH)₂ and HNO₃ to produce barium nitrate, Ba(NO₃)₂ is

Ba(OH)₂ + 2HNO₃ —> Ba(NO₃)₂ + 2H₂O

What is a chemical equation?

Chemical equations are representations of chemical reactions using symbols and formula of the reactants and products.

The reactants are located on the left side while the products are located on the right side.

Reactants —> Products

The balancing of chemical equations follows the law of conservation of matter which states that matter can neither be created nor destroyed during a chemical reaction but can be transferred from one form to another.

How to write the balanced equation

Ba(OH)₂ + HNO₃ —> Ba(NO₃)₂ + H₂O

There are 2 atoms of N on the right side and 1 atom on the left side. It can be balanced by writing 2 before HNO₃ as shown below:

Ba(OH)₂ + 2HNO₃ —> Ba(NO₃)₂ + H₂O

There are 4 atoms of H on the left side and 2 atoms on the right side. It can be balanced by writing 2 before H₂O as shown below

Ba(OH)₂ + 2HNO₃ —> Ba(NO₃)₂ + 2H₂O

Now, the equation is balanced

Learn more about chemical equation:

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Which of the mechanical waves below has the most energy?
A. Red
B. Blue
C. Green
D. Gold

Answers

Answer:

A. Red

Explanation:

What is the best reason that fire is not considered a living organism?.

Answers

Answer:

all living organisms have cells fire does not

If 25.0 g NO are produced, how many grams of nitrogen gas are used?

A: 5.84 g
B: 11.7 g
C: 23.3 g
D: 33.6 g

Answers

Based on the assumption that the reaction involves N and O to produce NO, if 25.0 g of NO are produced, the amount of N gas used would be 11.66 grams

Stoichiometric calculation

From the equation of the reaction:

       N + O ---------> NO

Mole ratio of N to NO is 1:1

Mole of 25.0 g of NO = 25/30.01 = 0.833 moles

Equivalent mole of N = 0.833 moles

Mass of 0.833 moles N = 0.833 x 14 = 11.66 grams

More on stoichiometric calculations can be found here: https://brainly.com/question/8062886

Reading Strategy (page 412)
Relating Text and Visuals As you read, look carefully at Pigures 1
and 2 and read their captions. Complete the table by describing the
work ohown in each figure for more information on this Reading
Strategy, see the Reading and Study Skills in the skills and
Reference Handbook at the end of your textbook
Figure
Direction
of Force
Oirection
of Motion
Is Work
Dono?
20
20
20
412 A101

Answers

Work is said to be done when force moves a distance and the direction of motion is in the direction of applied force.

What is work done?

Work done is defined as the product of applied force and the distance which the applied force moves.

According to Newton's second law of motion the acceleration of a body is inversely to its mass ut directly proportional to the force and takes place in the direction of the applied force.

Therefore, work is done when force moves a distance and the direction of motion is in the direction of applied force.

Learn more about work done at: https://brainly.com/question/19931524

If 86.4dm^3 of carbon dioxide gas contains N × 10^23 molecules at room temperature and pressure, find the value of N.​

Answers

At T 25 ° C (298 K) and P 1 atm are stated by RTP ⇒ Vm = 24.4 liters / mol

86.4 dm³ = 86.4 L = 86.4/24.4 = 3.54 mol

1 mole = 6.02.10²³ molecules

3.54 x 6.02.10²³ = 21.31 x 10²³ molecules

N = 21.31

What are the five major lines of latitude?

Answers

Answer: Arctic Circle, Tropic of Cancer, Equator, Tropic of Capricorn, and the Antarctic Circle.  Hope this helps.

What best describes these three molecules? they are not isomers. they are structural isomers. they are geometric isomers. they are both structural and geometric isomers.

Answers

Answer:

B

Explanation:

Answer:

The correct answer is B.

They are structual isomers.

The change in enthalpy that occurs in the process of converting reactants to products in a chemical reaction is called the _____ of reaction.

Answers

Answer:

Heat or Enthalpy of reaction

This is denoted as ∆H∆H is the enthalpy the of the reaction If ∆H is positive reaction is exothermic otherwise endothermic

What element is used to reduce ni cations in nickel ore to form metallic nickel? enter its chemical symbol.

Answers

Carbon monoxide with pressure pCO = 0.01 at 800°C is use to reduce the nickel oxide to metallic nickel.

The chemical symbol is CO.

Nickel Extraction?

Nickel can be extracted from it's ore through extractive metallurgy. This entails the process of conventional roasting and reduction processes of nickel ore which will produce nickel metal which is greater than 75% purity. In stainless steel applications, 75% pure nickel can be used without been purified furthe purification which depend the components impurities of impurities present in it. Carbon monoxide is use as the reducing agent as it reduce it from nickel oxide to nickel metal.

Therefore, Carbon monoxide with pressure pCO = 0.01 at 800°C is use to reduce the nickel oxide to metallic nickel.

The chemical symbol is CO.

Learn more about nickel Extraction below.

https://brainly.com/question/10440929

All the following are examples of common materials EXCEPT?

Answers

There is no picture so I cannot answer this.

Using the notation just described, represent a cell based on the following reaction:

ClO3−(aq)+3Cu(s)+6H+(aq)→Cl−(aq)+3Cu2+(aq)+3H2O(l)

Pt is used as an inert electrode in contact with the ClO3− and Cl− .

Drag the appropriate labels to their respective targets. For neutral species, leave the pink target blank.

Answers

The cell notation of the redox reaction between Cu and ClO₃⁻ is:

Cu/Cu²⁺//ClO₃⁻//Cl⁻/Pt

What is a voltaic cell?

A voltaic cell or electrochemical cell is a device which produces electricity from chemical reactions occuring within the cell.

The reactions occuring in a voltaic cell are redox reactions.

Oxidation occurs at the anode while reduction occurs at the cathode.

In the given reaction between Cu and ClO₃⁻ as shown below:

ClO₃⁻ (aq) + 3 Cu (s) + 6H⁺ (aq) → Cl⁻ (aq) + 3 Cu²⁺ (aq) + 3 H₂O (l)

Cu is oxidized as follows: 3 Cu (s) → 3 Cu²⁺
ClO₃⁻ is reduced as follows: ClO₃⁻ (aq) → Cl⁻ (aq)

The voltaic cell notation is as follows where Pt is used as an inert electrode in contact with the ClO₃⁻ and Cl⁻:

Cu/Cu²⁺//ClO₃⁻//Cl⁻/Pt

Therefore, the cell notation of the redox reaction between Cu and ClO₃⁻ shows that Cu is oxidized while ClO₃⁻ is reduced.

Leran more about voltaic cells at: https://brainly.com/question/3930479

Which gland of the endocrine system is located near the brain?

Answers

Answer:

The pituitary gland is located below the brain. :)

How much heat is absorbed when 70 grams of
water is completely vaporized at its boiling
point?

Answers

Answer:

Thus, the joules of heat absorbed when 70.0 grams of water is completely vaporised at its boiling point are 158,200.

Where do Grasshoppers have their ears?

Answers

Grasshoppers Have Ears on Their Bellies

Explanation:

Use the particle of theory why do solid do not flow. ​

Answers

Answer:

Solids dont flow because there is a strong attraction between the atoms, keeping them bonded together tightly.

Explanation:

They will continue being solid until temperature is increased at the melting point.

2.
What is the temperature when the volume is 4L? The original temperature is 200K and the
original volume is 5L.

Answers

Answer:

160

Explanation:

p*v/t = constant

or

p1*v1/t1 = p2*v2/t2

pressure is not stated in question so we get rid of it on both sides

v1/t1 = v2/t2

we are finding temperature so we flip the entire equation

t1/v1 = t2/v2

200/5 = t2/4

4(200/5) = t2

=160

Answer:

Yes it is 160K as the first person said

Define the main temperature, precipitation, location and soil characterisitcs of the following Biomes.

1. Tundra

2. Temperate Grassland

3. Tropical Rainforest

Answers

Answer:

Tundra :a vast, flat, treeless Arctic region of Europe, Asia, and North America in which the subsoil is permanently frozen.

Temperate grasslands are characterized as having grasses as the dominant vegetation.

Tropical rainforests are rainforests that occur in areas of tropical rainforest climate in which there is no dry season – all months have an average precipitation of at least 60 mm – and may also be referred to as lowland equatorial evergreen rainforest.

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