Describe the four states of matter.

Answers

Answer 1
In a solid, particles are packed tightly together so they don't move much. Solids have a definite shape. In a liquid, the particles are more loosely packed than in a solid and are able to flow around each other, giving the liquid an indefinite shape. In a gas, the particles have a great deal of space between them and have high kinetic energy. A gas has no definite shape or volume. Plasma consists of highly charged particles with extremely high kinetic energy

Related Questions

The table below shows two types of electromagnetic waves and three random applications of electromagnetic waves.


Type of Wave Applications of Waves
Gamma rays 1. Used in spectrometers to measure elements on the surface of celestial bodies
Radio waves 2. Used to measure gravity fields
3. Detect the heat released by astronomical objects


Which of these best matches the waves with their applications?
Gamma rays—2 and radio waves—3
Gamma rays—3 and radio waves—2
Gamma rays—2 and radio waves—1
Gamma rays—1 and radio waves—2

Answers

Answer:

Gamma rays—3 and radio waves—2

Explanation:

hard time seeing question, but i believe it is Gamma rays—3 and radio waves—2

Which list BEST identifies how the arrows should be arranged around the paper leaf in the model to represent the movement of matter and flow of energy during photosynthesis? A. Point into Leaf: sugars, oxygen (02), Point away from leaf: carbon dioxide(CO2), water(H2O) B. Point into Leaf: sugars, sunlight, Point away from leaf: carbon dioxide(CO2), oxygen (02), water(H2O) C. Point into Leaf: water(H2O), sunlight, Point away from leaf: carbon dioxide(CO2), sugars, oxygen (02) D. Point into Leaf: water(H2O), carbon dioxide(CO2) sunlight, Point away from leaf: sugars, oxygen (02

Answers

Answer:

D. Point into Leaf: water(H₂O), carbon dioxide (CO₂) sunlight, Point away from leaf: Sugars, oxygen (O₂)

Explanation:

Photosynthesis is the process used in the production of chemical energy in the form of energy containing organic compounds and oxygen from atmospheric carbon dioxide and liquid water enabled with the energy captured from light (mainly Sunlight) by the chlorophyll in green plants and other organisms

The basic chemical reaction involved in a photosynthesis reaction is presented as follows;

[tex]{}[/tex]                                    Sunlight

[tex]{}[/tex]                                          ↓

[tex]{}[/tex]       CO₂           +  H₂O (l)  →   C₆H₁₂O₆   +    O₂

Carbon dioxide [tex]{}[/tex]  Water        Glucose       Oxygen    


How did reducing the number of
decomposers affect the amount of carbon
dioxide in the ecosystem?

Answers

Answer:

As organisms release energy during cellular respiration, carbon dioxide is produced from the carbon in energy storage molecules. ... Carbon dioxide in the biodome decreased because decomposers decreased which means there was a decrease in cellular respiration overall.

btw :

stay safe! :3

i need help answering this question on my homework, could anyone help?

Answers

The Hydrogen symbol is H,
but a hydrogen gas is H2
H2 is the answer

In the diagram shown, what is occurring at the section marked 4 ?
Temperature
:: ا
4
2
Heat Energy
O Melting
Freezing
O Condensation
O Vaporization

Answers

Answer:

Vaporization

Since the question does not specify what molecule is being acted upon by the increment in temperature, I'll assume it's water.

When first taken out of the fridge, water is in the form of ice, and it has not been affected by a change in temperature yet, so it's at the origin.

(origin = ice)

As you raise the temperature, however, the ice starts to melt, and melting occur during phase 2. You have to keep the temperature constant for the process to properly occur.

(phase 2 = melting)

After it finishes melting, the ice is now in it's liquid state, which is water. The temperature continues to rise in order to proceed to the next phase.

(2nd slope = water)

Lastly, Water is being vaporized during phase 4. Notice, the temperature is kept constant in order to allow the process to properly occur.

(phase 4 = vaporization)

The theoretical yield of NH3 is 945 grams. You conducted the experiment and only produced 598 grams.

Answers

Answer:

Given theoretical yield of NH3 is 945g.

The actual yield is 598g.

What is the %yield?

Explanation:

%yield of a chemical reaction can be calculated by using the formula:

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

Substitute the given values in this formula to get the %yield.

[tex]\frac{598g}{945g} * 100\\=63.3[/tex]

Hence, the %yield for the formation of ammonia is ---- 63.3.

what are alpha particles??​

Answers

Answer:

a helium nucleus emitted by some radioactive substances, originally regarded as a ray.

Explanation:

Answer:

They're charged particles Identical to the Helium Nucleus

Having 2 protons and 2neutrons and having a Mass of 4.

They're Heavy and slow(speed)In comparison to Beta particles and gamma rays

Usually Emitted from nucleus of radioactive nuclides during decay

1. Ecosystems are composed of biotic and abiotic factors. Which of the following
represent only an abiotic factor in an ecosystem that could have an effect on
the ecosystem?
a. rivers with more dams
b. wood being taken for manufacturing
c. waste not being used by fungi
d. decomposers only taking nutrients from plants

Answers

Answer:

wood being taken for manufacturing

Determine the number of protons, electrons, and neutrons present in an atom of patassium. Explain how you determined your answer using complete sentences.

Please make sure your right.

Thank you!!!

Answers

Protons-19 because protons are equal to the atomic number which is 19 , electrons-19 electrons are equal to number of protons, neutrons-20 because the mass number of potassium is 39 so subtract 39 from 19 (atomic number) which gives us 20

please explain what a ecosystem is.​

Answers

Explanation:

An ecosystem includes the environment, living and non-living things and how they interact with each other.

For example, in a Reef ecosystem there

are marine plants and animals that depend on each other and their surrounding to survive.

Si se hace reaccionar CH3CH3 (etano) con cloro, en presencia de luz ultravioleta, los productos obtenidos en este paso son

Answers

Answer:

La reacción de etano, CH₃CH₃ y cloro, Cl₂ en presencia de luz solar se conoce como reacción de halogenación.

Los radicales de cloro se forman cuando el cloro se expone a la luz solar a continuación;

Cl₂ → 2Cl *

Se forma un radical etano cuando el etano, C₂H₆ reacciona con un radical libre de cloro, Cl *, como sigue;

C₂H₆ + Cl → C₂H₅ * + HCl

Se forma un producto halogenado cuando un radical libre de etano reacciona con una molécula de cloro como sigue;

C₂H₅ * + Cl₂ → C₂H₅Cl + Cl *

Un producto halogenado puede reaccionar además con un radical libre para producir como sigue;

C₂H₅Cl + Cl * → C₂H₅Cl₂

Explanation:

Which equation represents the correct net ionic equation for the reaction between Ca(OH)2 and H2SO4?
Upper H superscript plus, plus upper O upper H superscript minus right arrow upper H subscript 2 upper O.
2 upper H superscript plus, plus 2 upper O upper H superscript minus right arrow upper H subscript 2 upper O.
Upper C a superscript 2 plus, plus 2 upper O upper H superscript minus, plus upper S upper O subscript 4 superscript 2 minus right arrow upper C a superscript 2 plus, plus upper S upper O subscript 4 superscript 2 minus, plus 2 upper H subscript 2 upper O.
Upper C a (upper O upper H) subscript 2 plus upper H subscript 2 upper S upper O subscript 4 right arrow upper C a upper S upper O subscript 4 plus 2 upper H subscript 2 upper O.

Answers

Answer: The correct net ionic equation for the reaction is [tex]2H^{+}(aq)+2OH^{-}(aq)\rightarrow 2H_2O(l)[/tex]

Explanation:

Net ionic equation is defined as the equations in which spectator ions are not included.

Spectator ions are the ones that are present equally on the reactant and product sides. They do not participate in the reaction.  

The balanced molecular equation is:

[tex]Ca(OH)_2(aq)+H_2SO_4(aq)\rightarrow CaSO_4(aq)+2H_2O(l)[/tex]

The complete ionic equation follows:

[tex]Ca^{2+}(aq)+2OH^-(aq)+2H^+(aq)+SO_4^{2-}(aq)\rightarrow 2Ca^{2+}(aq)+SO_4^{2-}(aq)+H_2O(l)[/tex]

As calcium and sulfate ions are present on both sides of the reaction. Thus, they are considered spectator ions.

The net ionic equation follows:

[tex]2H^{+}(aq)+2OH^{-}(aq)\rightarrow 2H_2O(l)[/tex]

Hence, the correct net ionic equation for the reaction is [tex]2H^{+}(aq)+2OH^{-}(aq)\rightarrow 2H_2O(l)[/tex]

Answer:

B. no reaction     

Explanation:

do the
math!
Wavelength Frequency
Speed
Medium
200 Hz
1500 m/s
The table shows measurements of
some properties of a sound wave in
water and in air.
Water
400 Hz
3.75 m
Water
343 m/s
Air (20°C)
10 m
Calculate Using what you know
about the relationship between
wavelength, frequency, and speed,
fill in the table.
17.15 Hz
343 m/s
Air (20°C)
1a
CHALLENGE What can this table
tell
you about the speed of a wave?

Answers

Answer:

everything can be found in the picture

copper +sulfur + oxygen =

Answers

Copper + sulfur + oxygen = Copper sulphate
Copper solphate hope this helps I

What is the percent composition of phosphorus in the compound P3CI8

Answers

Answer:

24.68%

Explanation:

Molar mass of phosphorous / molar mass of P3Cl8

= 3 x 30.97 / (3 x 30.97) + (8 x 35.45)

= 92.91/376.51 x 100

= 24.676%

=24.68% (2dp)

A change in 1 degree Celsius is = a change in 1 Kelvin
True
False

Answers

Answer:

true

Explanation:

because I'm smart yes yes

Which substance would you expect to dissolve most rapidly in 100 mL water?

A
0.4 g granulated sugar

B
0.2 g powdered sugar

C
0.4 g powdered sugar

D
0.2 g sugar cube

Answers

Answer:

b because it is just 0.2 g and powdered sugar has more contact surface than granulated sugar or sugar cube

The solubility can be given as the amount of solute that can be dissolved in the 100 ml of the solution. The most rapidly dissolved sugar in water is 0.2 gram powdered sugar.

What is a contact surface?

The contact surface can be given as the area of the compound that is in direct contact with the solution.

The solubility of the compound is found more in the solute with increased surface area.

The surface area of powdered sugar will be maximum, as more granules of the sugar will be in contact with the water than the cube or the granulated sugar.

Thus, the most rapid dissolution in water is found with 0.2 grams of powdered sugar. Thus, option B is correct.

Learn more about solubility, here:

https://brainly.com/question/13620168

What makes radioisotopes useful for dating objects?
O A. They have unique emission spectra.
O B. They decay at a predictable rate.
C. Their decay products are easy to detect.
O D. They all have extremely long half-lives.

Answers

Answer:A

Explanation:

Option D. They all have extremely long half-lives makes radioisotopes useful for dating objects.

What are radioisotopes?

Radioisotopes exist as radioactive isotopes of an element. They can also be described as atoms that include an unstable combination of neutrons and protons, or surplus energy in their nucleus.

A radionuclide exists as a nuclide that contains excess nuclear energy, causing it unstable. This excess energy can be utilized in one of three methods: emitted from the nucleus as gamma radiation; assigned to one of its electrons to terminate it as a conversion electron; or utilized to create and emit a unique particle from the nucleus.

Radioactive isotopes of radium, thorium, and uranium, for example, exist found naturally in rocks and soil. Uranium and thorium also happen in trace amounts in water. Radon, induced by the radioactive decay of radium, stands present in the air.

Hence, Option D. They all have extremely long half-lives makes radioisotopes useful for dating objects.

To learn more about radioisotopes refer to:

https://brainly.com/question/18640165

#SPJ2

What dose the wave carry

Answers

Answer:

Waves carry energy from one place to another.

Because waves carry energy,some waves are used for communication,eg radio and television waves and mobile telephone signals.

Explanation:

i hope it helps

that's my answer

correct me if im wrong

#carryonlearning

. Calculate the pH and the pOH of each of the following solutions at 25 °C for which the substances ionize completely:
(a) 0.200 M HCl

(b) 0.0143 M NaOH

(c) 3.0 M HNO3

(d) 0.0031 M Ca(OH)2

Answers

a. HCl:
pH= -log [H3O+]
PH=-log (0.200)
= 0.699

poH= 14-0.699
= 13.301

b. NaOH:
PoH= -log [OH-]
= -log (0.0143)
= 1.845
pH= 14-poH
= 14- 1.845
= 12.16

c. HNO3:
PH= -log[H3O+]
=-log(3.0)
= -0.4771
poH= 14-pH
= 14-9-0.4771
= 14.4771

pH= -0.4771, poH= 14.4771

d. [Ca(OH)2] = 0.0031M
[OH-]= 2X0.0031
[OH-] = 0.0062M

PoH= - log[OH-]
=-log(0.0062)
=-log(6.2x10-3)
=-(-2.21)
= 2.21
PH=14-poH
=14-2.21
=11.79
POH=2.21, PH= 11.79

Based on the molarity of the solutions;

For 0.200 M HCl; pH = 0.699, pOH = 13.301For 0.0143 M NaOH; pOH = 1.845, pH = 12.16For 3.0 M HNO3; pH = -0.4771, poH = 14.4771For 0.0031 M Ca(OH)2; pOH = 2.21, pH = 11.79

What pHand pOH?

pH is the negative logarithm to base ten of the hydrogen ions concentration of a solution.

pH = -log[H+]

pOH is the negative logarithm to base ten of the hydroxide ions concentration.

pOH = -log[OH-]

Also;

pH + pOH = 14

For HCl:

pH = -log [H3O+]

pH =-log (0.200)

pH = 0.699

Then;

poH= 14-0.699

pOH = 13.301

For NaOH:

pOH= -log [OH-]

= -log (0.0143)

pOH = 1.845

Then;

pH= 14-poH

= 14- 1.845

pH = 12.16

For HNO3:

pH= -log[H3O+]

=-log(3.0)

= -0.4771

Then;

pOH = 14-9-0.4771

pOH = 14.4771

For [Ca(OH)2]

molarity = 0.0031M

2 moles of OH- are produced

[OH-]= 2 × 0.0031

[OH-] = 0.0062M

pOH = - log[OH-]

=-log(0.0062)

=-log(6.2x10-3)

=-(-2.21)

pOH = 2.21

Then;

pH =14-2.21

pH =11.79

Learn more about pH and pOH at: https://brainly.com/question/13557815

7th grade science help me plsssss

Answers

Answer:

They grow slowly over time, they are made up of multiple organisms.

Explanation:

One polyp is one individual. A Coral is made up of several polyps. Each polyp is less than 1 centimeters but a coral is made of many polyp so the coral itself cant be 1 centimeters across.

The metal aluminum coils in an air conditioner conduct thermal energy from inside the house and release it outside the house. What can be said about the coils when they are accepting the heat inside the house?

Answers

Answer:

c

Explanation:

Answer:
B: They must be cooler than the air inside the house.

Explanation:

I got it right on edge!

Write the net ionic equation. Don't worry about identifying the state of matter. 2 NH4Cl (aq) + 1 Mg(OH)=2NH3 (g) + 2H2O (l) + 1 MgCl2 (aq)

Answers

Answer:

2NH4^+(aq) + 2OH^-(aq) ----->2NH3(g) + 2H2O(l)

Explanation:

Molecular balanced reaction equation;

2NH4Cl (aq) + Mg(OH)2---->2NH3 (g) + 2H2O (l) + MgCl2 (aq)

Complete ionic reaction equation;

2NH4^+(aq) + 2Cl^-(aq) + Mg^2+(aq) + 2OH^-(aq) ----->2NH3(g) + 2H2O(l) + Mg^2+(aq) + 2Cl^-(aq)

Net Ionic reaction equation;

2NH4^+(aq) + 2OH^-(aq) ----->2NH3(g) + 2H2O(l)

Please help I’ll give brainliest

Answers

REACTION TYPE:

Single displacement/Oxidation-reduction

(Hope this helped UwU)

Answer:

Synthesis reaction is the answer

por que el petroleo es un no recurso renovable

Answers

Answer:

Por ejemplo, el petróleo o el carbón son ejemplos de recursos no renovables porque, aunque se forman mediante un proceso natural, este necesita demasiado tiempo. ... Esos combustibles fósiles provienen de materia orgánica, pero tardan cientos de miles de años en producirse.

Given 7 moles of nitrogen gas, how many moles of ammonia can you make?

Answers

Explanation:

just use the molar ratios to figure it out. Notice, you have to balance the chemical equation.

Given the reaction at equilibrium:
H2(g) + Cl2(g) → 2HCl(g) + heat
The equilibrium will shift to the right when there is an
increase in
A temperature
B pressure
C concentration of H2(g)
O concentration of HCl(g)

Answers

B IT IS B … thank me later.

What is the number of Co2 in a 220 gram

Answers

I believe that the number for Co2 in 220 grams is 5

Help me with this this is something i dont know and its not on here please help meeeeeee

Answers

Answer:

it would be option A

Explanation:

This is becuase if you look at the chart you can see tyhat the group of rats that got feed to vitamans did gain more wati then the ones on the normal diet.

How many Carbon Atoms are there on the PRODUCT SIDE

Answers

Answer: There are 6 carbon atoms on the product side.

Explanation:

The given reaction equation is as follows.

[tex]6CO_{2} + 6H_{2}O \rightarrow C_{6}H_{12}O_{6} + 6O_{2}[/tex]

Species present on the left side of an arrow in a chemical equation depicts the reactants.

Species present on the right side of an arrow in a chemical equation depicts the products.

Hence, products in the given reaction equation are [tex]C_{6}H_{12}O_{6}[/tex] and [tex]6O_{2}[/tex].

Therefore, there are 6 carbon atoms present on the product side.

Thus, we can conclude that there are 6 carbon atoms on the product side.

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