water is the only compound that commonly exists in the __ states on the earth​

Answers

Answer 1

Answer: Water is the only known substance on Earth that exists naturally in three states: solid, liquid, and gas.

Explanation:


Related Questions

What is the Big bang Theory​

Answers

Answer:

The Big Bang Theory is the leading explanation about how the universe began. At its simplest, it says the universe as we know it started with a small singularity, then inflated over the next 13.8 billion years to the cosmos that we know today.

Explanation:

What is the charge on an electron?

Answers

Answer:

The answer is negative .

Identify three details for how the Earth and Moon are different

Answers

1. Earth can sustain life the moon cannot
2.Earth has oxygen moon does not.
3. Moon is not known to have life

How is the atmospheric oxygen that is taken in by living things for respiration replaced?
A) After living things use oxygen for respiration, they exhale the oxygen back to the atmosphere.
B) Photosynthesis uses the carbon dioxide that is exhaled by living things to make oxygen.
C) Weathering releases oxygen that is locked in rocks due to sedimentation.
D) Oxygen that is dissolved in water such as oceans is released.

Answers

I believe the answer is B
Organisms using photosynthesis take in oxygen and release carbon dioxide (ex: plants)

Answer:

B.) Photosynthesis uses the carbon dioxide that is exhaled by living things to make oxygen.

Explanation:




The balloon in this image was rubbed with a piece of wool material. Now, it is negatively charged. What force allows the charged balloon to "pick up" the small pieces of paper off of the table?



The negatively charged balloon is attracted to negative static charges in the paper..



The negatively charged balloon is attracted to the north pole of the paper pieces.



The negatively charged balloon is attracted to the south pole of the paper pieces.



The negatively charged balloon is attracted to the positive static charges in the paper.


What is the best explanation of electric current in a wire?



Electrons build up in the wire and create a charge.



Electrons flow because of electrical attraction and repulsion.



Protons are pushed along by electric forces.



Atoms move because of heat.


Why does the light bulb in a circuit turn on when you close the switch?



The switch absorbs the electrical energy.



The switch changes the direction of the flow of electrons.



Closing the switch completes the circuit, making it a closed circuit.



The switch changes the circuit from series to parallel.


Earth is dipolar, like a bar magnet.


What does this mean about its magnetic poles?



There is only a magnetic south pole.



There is only a magnetic north pole.



There are both magnetic north and south poles.



There are two magnetic north poles.



Which arrangement described below would result in magnetic poles that attract one another?


North Pole + South Pole


South Pole + West Pole


East Pole + North Pole


North Pole + North Pole



Why is an electromagnet a temporary magnet?




An electromagnet only attracts other permanent magnets.




An electromagnet becomes a magnet when a current flows through the wire. An electromagnet no longer acts as a magnet when the current flow stops.




An electromagnet cannot be turned on and off.




An electromagnet is a magnet when no current flows through the wire. The electromagnet no longer acts as a magnet when current flows through the wire.



What set of materials listed below could be used to create a complete electromagnet?



wires and battery




iron nail and battery




iron nail, magnet, and wire




battery, iron nail, copper wire



Where is a bar magnet's magnetic field the strongest?



red part of the magnet



longest part of the magnet



magnetic poles (N + S)



center of the magnet



A(n) ___________ is represented in the diagram it converts electrical energy into mechanical motion.


generator


electromagnet


parallel circuit


motor

Answers

Answer:

I actually have no idea

Explanation:

Sorry my man

Answer:

Explanation:

generator

PLS HELP

In the balanced equation:


H3PO4(aq) + NH3(aq) ↔ X(aq) + NH4+(aq)



The particle represented by X(aq) is


A) H2PO4–(aq)

B) HPO42–(aq)

C) PO43–(aq)

D) H3PO4(aq)

Answers

Answer:

The particle represented by X(aq) is  A) H₂PO₄⁻(aq)

Explanation:

According to the Brønsted-Lowry Theory, a base is a substance capable of accepting protons (H⁺) in solution. Conversely, a substance acts as an acid if it acts as a proton donor.

A proton transfer then occurs, requiring the presence of a proton donor (an acid) and a base that accepts them.

When an acid gives up a proton, it becomes an anion, generating a conjugate base. That is, a conjugate base is an ion or molecule resulting from the acid that loses the proton. Conversely, a conjugated acid is an ion or molecule resulting from the base that the proton gains.

In this NH₃ / NH₄⁺ pair that NH₄⁺ is the conjugate acid of the NH₃ base, the latter acting as a base since it accepts a proton. H₃PO₄ then acts as an acid, yielding a proton and generating the conjugate base H₂PO₄⁻.

So, the particle represented by X(aq) is  A) H₂PO₄⁻(aq)

2.03
Which landform is created by flowing water

A.cirques

B.gullies

C.horns

D.dunes

Answers

Answer:

Gully

Explanation:

the answer is B gullies

What happens to a neutral atom when an electron leaves

Answers

the atom becomes an ion

Discribe how an internal combustion engine works. What is drawback to the type of power?

Answers

Answer:

An internal combustion engine is a heat engine in which the combustion of a fuel occurs with an oxidizer in a combustion chamber. The force of combustion is converted into mechanical energy through the use of levers and gears. The by products of combustion include energy, water vapor, carbon dioxide (CO2), nitric oxide (NO), nitrogen dioxide (NO2), and carbon monoxide (CO). The two primary drawbacks to the internal combustion engine are the primary energy source is non-renewable (fossil fuels) and the by products can have damaging effects on the environment.

Explanation:

Help Chem asap!!!!! Brainslist

Answers

Answer:

OH-

Explanation:

Cylinder A contains a gas whose molecules have an average speed of 0.0000001 meters/sec. Cylinder B contains a gas whose molecules have an average speed of 0.3 meters/sec. Select the statement below that is true regarding these cylinders. options: Cylinder A contains a gas that has a temperature closest to absolute zero. Even though the molecules are moving at different speeds in the two cylinders, they have the same kinetic energy. Cylinder B contains molecules that are moving more slowly than the molecules in Cylinder A. Cylinder B contains a gas that has a temperature closest to absolute zero.

Answers

Answer:

The correct option is;

Cylinder A contains a gas that has a temperature closest to absolute zero

Explanation:

From the kinetic theory of gases, the average speed of a gaseous molecule is found from the following equation;

[tex]v_{rms} = \sqrt{\frac{3\cdot R \cdot T}{MW} }[/tex]

Where:

[tex]v_{rms}[/tex] = rms speed which is the square root of the average of the velocities of the gas molecules squared which is used in place of the average of the gas molecules as the sum of the velocities of all the gas molecules in the cylinder is zero

R = Universal gas constant = 8.3145 J/(mol·K)

MW = Molecular weight of the gas

Hence where we have;

[tex]v_{rmsA}[/tex] = Average velocity of gas A = 0.0000001 m/s

[tex]v_{rmsB}[/tex] = Average velocity of gas B = 0.3 m/s

Since, R and MW are constant for the gas in cylinder A constant, therefore, as [tex]v_{rmsA}[/tex] ≈ 0 m/s, the temperature, [tex]T_A[/tex], of gas A is closest to absolute zero.

10) Intravenous saline solutions have a concentration of 1.5 M NaCl. How many liters of saline can be prepared from 50.0 g of NaCl?

Answers

Answer:

0.57 mol/L

Explanation:

Molarity (M) is defined as the number of moles of solute per liter of solution (moles/Liter).

Molarity  =  [tex]\frac{moles of solute}{liters of solution}[/tex] or Moles  =  molarity × litres

so, the mass of Nacl in 1 mol is 58.44 g,

Moles of NaCl = 50.0g x 1 mole NaCl / 58.44 g

                          = 0.855 mol NaCl

Moles  =  molarity × litres

0.855 = 1.5 M x L

L = 0.57 mol/L

Hence, 0.57 mol/L can be prepared from 50.0 g of NaCl.

How many mL of 0.5 M H2SO4 will neutralize 10 mL of 1.5 M NaOH?

0.75mL

30 mL

3 mL

15 mL

Answers

Answer:

15 mL

Explanation:

Please see the step-by-step solution in the picture attached below.

Hope this answer can help you. Have a nice day!

Please help No Explanation needed. Its science please

Answers

Answer:

C, A, A, B, B

Explanation:

Question 5: C. continental drift

Question 6: A. new rock forms

Question 7: A. happens at deep-ocean trenches

Question 8: B. convection currents in the mantle

Question 9: B. convergent boundary

You arrive in my class 45 seconds after leaving math which is 90 meters away. How fast did you travel?

Answers

Answer:

Speed is 2

Explanation:

Speed = distance ÷ time

90/45=2

Answer: 2

Explanation:

Distance/Time = Speed


The ___________________ is an early theory which states that our solar system was formed by the gravitational collapse of a massive giant cloud.
A) Nebular Theory
B) Capture Theory
C) Proto-planet Theory
D) Schmidt-Lyttleton accretion theory

Answers

Answer: A) Nebular Theory

Explanation:

Answer:

A)

Explanation:

A gas has a volume of 3.25 liters at 54 C and 231 kPa of pressure. At what temperature will the same gas take up 4.35 liters of space and have a pressure of 168 kPa?

Answers

Answer: 318 K

Explanation:

Combined gas law is the combination of Boyle's law, Charles's law and Gay-Lussac's law.

The combined gas equation is,

[tex]\frac{P_1V_1}{T_1}=\frac{P_2V_2}{T_2}[/tex]

where,

[tex]P_1[/tex] = initial pressure of gas = 231 kPa

[tex]P_2[/tex] = final pressure of gas = 168 kPa

[tex]V_1[/tex] = initial volume of gas = 3.25 L

[tex]V_2[/tex] = final volume of gas = 4.35 L

[tex]T_1[/tex] = initial temperature of gas = [tex]54^oC=273+54=327K[/tex]

[tex]T_2[/tex] = final temperature of gas = ?

Now put all the given values in the above equation, we get:

[tex]\frac{231\times 3.25}{327}=\frac{168\times 4.35}{T_2}[/tex]

[tex]T_2=318K[/tex]

At 318 K of temperature will the same gas take up 4.35 liters of space and have a pressure of 168 kPa

State duplet rule .

Answers

some elements can have to electrons and be stable in their shell they are stable in a duplet state instead of a octet state

Which has more total Heat Energy/
A.) A cup of HOT coffee
B.) A thermos of HOT coffee
C.) They both have the same amount to heat energy

Answers

Answer:

The thermos should have more heat energy because of the greater mass.

Sarah, Leah, Haley, Lindsay, and Kim bought 4 bottles of water to share among themselves. They divided each bottle of water into 5 equal portions. Sarah took 1 portion from each bottle of water.

Answers

Answer:

4/5 of a bottle

Explanation:

Sarah, Leah, Haley, Lindsay, and Kim bought 4 bottles of water to share among themselves. They divided each bottle of water into 5 equal portions. Sarah took 1 portion from each bottle of water. Which equation represents how much of a bottle of water Sarah took?

Sarah must have taken 4/5 of a bottle

First, the 4 bottles of water were divided into 5 equal portions;

4 x 5 = 20 portions.

Sara too 1 portion from each bottle;

1 portion x 4 bottles = 4 portions

Which equation represents how much of a bottle water Sarah took?

Since each bottle water was divided into 5 equal proportions and assuming that the bottle waters are of the same volumes, then Sarah has taken 4 out of 5 portions of a bottle water.

Answer: 4 ÷ 5 ﹦4/5  ♡♡♡

Explanation: When you see eqautions like these, always remember that                          the first number goes on the top and the second one goes on the bottom. Hope this helps! (~﹃~)~Hi☆

5) A solution has a pH of 1.5. What is the [H+]? *

0.0316

0.0679

0.00123

0.000954

Answers

Answer:

.0316

Explanation:

The formula is...

H+ = 10^-pH

- Hope that helps! Please let me know if you need further explanation.

Consider the intermediate chemical reactions.



2 equations. First: upper C a (s) plus upper C upper O subscript 2 (g) plus one half upper O subscript 2 (g) right arrow upper C a upper C upper O subscript 3 (s). Delta H 1 equals negative 812.8 kilojoules. Second: 2 upper C a (s) plus upper O subscript 2 (g) right arrow 2 upper C a upper O (s). Delta H 2 equals negative 1, 269 kilojoules.



The final overall chemical equation is Upper Ca upper O (s) plus upper C upper O subscript 2 (g) right arrow upper C a upper C upper O subscript 3 (s).. When the enthalpy of this overall chemical equation is calculated, the enthalpy of the second intermediate equation

Answers

When the enthalpy of this overall chemical equation is calculated, the enthalpy of the second intermediate equation is halved and has its sign changed.

Let's consider the following intermediate chemical reactions.

Reaction 1: Ca(s) + CO₂(g) + ½O₂(g) → CaCO₃(s)    ΔH₁ = -812.8 kJ

Reaction 2: 2 Ca(s) + O₂(g) → 2 CaO(s)                  ΔH₂ = -1269 kJ

We want to calculate the enthalpy of the following overall chemical equation.

CaO(s) + CO₂(g) → CaCO₃(s) ΔH = ?

We can apply Hess' law.

What is Hess' law?

Hess' law states that regardless of the multiple stages or steps of a reaction, the total enthalpy change for the reaction is the sum of all changes.

To apply Hess' law in this case we have to:

Conserve equation 1 as is.Reverse equation 2 and multiply it by 1/2, thus changing the sign of its enthalpy and multiplying it by 1/2.Add both equations and their enthalpies.

Ca(s) + CO₂(g) + ½ O₂(g) → CaCO₃(s)    ΔH = -812.8 kJ

+

CaO(s) → Ca(s) + ½ O₂(g)                       ΔH = 634.5 kJ

--------------------------------------------------------------------------------------

CaO(s) + CO₂(g) → CaCO₃(s)                  ΔH = -178.3 kJ

When the enthalpy of this overall chemical equation is calculated, the enthalpy of the second intermediate equation is halved and has its sign changed.

The complete question is as follows.

Consider the intermediate chemical reactions.

Ca (s) + CO₂ (g) + ½O₂ (g) → CaCO₃ (s) ΔH₁ = -812.8 kJ

2Ca (s) + O₂ (g) → 2CaO (s) ΔH₂ = -1269 kJ

The final overall chemical equation is

CaO (s) + CO₂ (g) → CaCO₃ (s) ΔH = ?

When the enthalpy of this overall chemical equation is calculated, the enthalpy of the second intermediate equation

is halved and has its sign changed. is halved. has its sign changed. is unchanged.

Learn more about Hess' law here: https://brainly.com/question/11628413

Answer:

Consider the following intermediate reactions.

                              CH₄(g)+2O₂(g)⇒CO₂(g)+2H₂O(g)           ΔH₁ = -802 kJ

                              2H₂O(g)⇒2H₂O(I)                                     ΔH₁ = - 88 kJ

The overall chemical reaction is as follows.

                              CH₄(g)+2O₂(g)⇒CO₂(g)+2H₂O(I)             ΔH₂ = -890 kJ

What is the correct enthalpy diagram using the Hess law for this system?

✔️ A←

❌ B

❌ C

❌ D

Look at these two molecular diagrams and think about the features of the compounds. (SEE PICTURE)

1. A chain of 5 C atoms is bonded to H above and below and to the left and the right, except that the 4th C is bonded to C H subscript 3 above instead of a plain H. 2. A chain of 4 C atoms is bonded to H above and below and to the left and the right, except the second C in the chain is bonded to C H subscript 3 above and below.

Which descriptions apply to these two compounds? Check all that apply.

are isomers of each other

have same molecular formula

have same structural formula

are both hydrocarbons

have same number of each kind of atom

have same geometric arrangement of atoms

Answers

Answer:

A, B, D, E

Explanation:

correct on Edge 2020

Answer:

1) are isomers of each other

2) are isomers of each other

4) are both hydrocarbons

5) have same number of each kind of atom

Explanation: edg 2020

How do American cities now protect their water resources

Answers

They can use man made materials or they can also have designed areas that people can’t go into

Answer:

They can use man made materials or they can also have designed areas that people can’t go into

Explanation:

Consider the nuclear equation below. Superscript 222 subscript 86 upper R n right arrow superscript 218 subscript question mark upper P o plus superscript 4 subscript 2 upper H e. Which is the missing value that will balance the equation? 84 86 88 90

Answers

Answer:

84

Explanation:

From the question given above, it is evident that 222 86Rn is emitting alpha particle since the daughter nuclei produced has a mass number lesser than 4 when compared to parent element.

Therefore, the miss value in the equation is 84.

Please see attachment for further details

Based on the calculations, the missing value that will balance the equation is: A. 84.

What is an alpha decay?

An alpha decay is a type of nuclear reaction in which the atomic nucleus of a radioactive element emits an alpha particle (helium atom), thereby, producing chemical elements with a different atomic nucleus.

In this exercise, we are given the following nuclear equation with an alpha decay:

²²²R₈₆   -----> ²¹⁸Poₓ + ⁴He₂

For the subscript, we have:

86 - 2 = 84.

Read more on alpha decay here: brainly.com/question/23303931

#SPJ2

Which of the following are social implications of an environmental policy? Check all that apply.
loss of jobs
poorer air quality
less erosion
cleaner water waste
higher taxes
elimination of tourist activities

Answers

Answer:

the correct answer is lost of jobs,higher taxes, and elimination of tourist activities

Explanation:

hope you have a blessed day:)

Answer:

the correct answer is lost of jobs,higher taxes, and elimination of tourist activities

Explanation:

thank you for the answer i hope EVERYONE has A BLESSED DAY!!!!!!!!!!!!!!!!!!!!!!

5. What is the % of each element in Al2(Cro4)3? ​

Answers

Explanation:

Utiliza mayúsculas para el primer carácter en el elemento y minúsculas para el segundo carácter. Ejemplos: Fe, Au, Co, Br, C, O, N, F.

Puedes utilizar los paréntesis () o los corchetes [].

The conditions of 1 atm pressure and 0°C are known as

Answers

standard temperature and pressure I think and 1 atm is the pressure for gas

if the element xenon applied for a job, what job would it apply for

Answers

Answer:

A photographer.

Explanation:

Xenon is used in photographic flashes.

please help me please

Answers

Answer:

b

Explanation:

i read this once and remember,trust me!

Answer:

20 is b and 21 is a.

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