The image below shows uncharged particles bouncing around.
State of Matter
Which state of matter is most likely represented in the image? (5 points)

Gas
Solid

Liquid

Plasma

Answer:

Irrational

Explanation:

:)

Answer:

It is irrational

Explanation:

Since 7 is a prime number, it has no square factors and its square root cannot be simplified.

Answer:

4740460000, or 4.74046*10^9

Explanation:

This is math i thnk

e means *10

[tex]5.63\cdot \:8.42\cdot \:10^{19-11}[/tex]

[tex]5.63\cdot \:8.42\cdot \:10^8[/tex]

[tex]10^8\cdot \:47.4046[/tex]'

<3

Red

ok so this is saying

5.63 x 10^19 * 8.42 x 10^-11   indicates a scientific notation

plug into your graphing calculator and you get 4740460000 but make it imto three sig figs so the answer is: 4.74 x 10^9

Answer:

120876

Explanation:

Answer:

B, 4.

Explanation:

i just took this

Answer:

Explanation:

The formula is density = mass÷volume

Values given are:

mass = 5.910g  and

diameter = 10.0 mm = 1cm

so, we need to find the volume first.

Volume of a sphere is (4/3)πr³

thus, V = 4.189 cm³

Density = mass ÷ volume

density = 5.910 ÷ 4.189

= 1.411 g/cm³

Answer:

Explanation:

In order to find the volume , we use the formula for Boyle's law which is

[tex]P_1V_1 = P_2V_2[/tex]

where

P1 is the initial pressure

P2 is the final pressure

V1 is the initial volume

V2 is the final volume

Since we are finding the final volume

[tex]V_2 = \frac{P_1V_1}{P_2} \\[/tex]

From the question

P1 = 12 atm

V1 = 9 L

P2 = 6 atm

We have

[tex]V_2 = \frac{12 \times 9}{6} = \frac{108}{6} \\ [/tex]

We have the final answer as

Hope this helps you

Answer:

I think its b

Explanation:

Answer:

C) 2 H2(g) + O2 (g) 2 H2O (l) AH° = -571.6

kJ/mol

Explanation:

The magnitude of heat released in an exothermic reaction is shown by the magnitude of the change in enthalpy.

The more negative the enthalpy change of the reaction, the more the heat released by the process.

Hence,  2 H2(g) + O2 (g) 2 H2O (l) AH° = -571.6 kJ/mol has the most negative value of enthalpy change hence the greatest amount of heat is released in this reaction.

The reaction which would produce the largest amount of heat per mole of hydrogen is; Choice C: 2H2(g) + O2 (g). ===> 2 H2O (l) AH° = -571.6

AH° = -571.6kJ/mol.

According to the question;

It is evident that all the reactions are exothermic; the reactions release heat.

In this scenario; the reaction that would produce the largest amount of heat per mole of hydrogen is Choice C: 2H2(g) + O2 (g) =====> 2 H2O (l) AH° = -571.6 kJ/mol

Read more:

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Answer:

WTH? That is WOW....-_-

Answer:

wow

Explanation:

wow

Answer:

Sedimentary, igneous and metamorphic

Metomorphic, heat and pressure

Sedimentary erosion and weather

Igneous magma and lave

So three!

Answer:

Test variable (independent variable): Predators, Pollution, Food.Outcome variable (dependent variable): Cricket Frogs.Control group: Beginning Frog Count

Explanation:

If pollution isincreased, then the cricket frog population will (stay the same) over the span offive years.If the amount of food available isincreased, then the cricket frog population will (increase) overthe span of five years.Procedure:The procedures are listed in your virtual lab. You do not need to repeat them here. Please be sureto identify the test variable (independent variable), outcome variable (dependent variable), andcontrol group for this experiment.

Answer:

I dont lnow much about chemistry, but I believe it's either d or a. sorry if its wrong!

Answer:

When an electron temporarily occupies an energy state greater than its ground state, it is in an excited state. An electron can become excited if it is given extra energy, such as if it absorbs a photon, or packet of light, or collides with a nearby atom or particle.

Explanation:

Hope this helps.

Have a good night ma´am/sir.

Be safe!

Answer:

CO2

Explanation:

the subscript tells you how many of one element is used for this case there is one black atom and 2 red ones so you only need 1 carbon and 2 oxygens.

hope this helps. brainliest please?

Answer:

Explanation:

The density of a substance can be found by using the formula

[tex]density = \frac{mass}{volume} \\[/tex]

From the question

mass = 8.11 g

volume = final volume of water - initial volume of water

volume = 44.72 - 25.26 = 19.46 mL

We have

[tex]density = \frac{8.11}{19.46} \\ = 0.416752312...[/tex]

We have the final answer as

Hope this helps you

Answer:

Sodium (Na)

Explanation:

Answer:

Q = 126.5 kJ

Explanation:

Given that,

Mass, m = 1210 g

Specific heat of water, c =  4.184 J/g°C

Initial temperature, [tex]T_i=20^{\circ} C[/tex]

Final temperature, [tex]T_f=45^{\circ} C[/tex]

We need to find the heat absorbed by water. The formula that is used to find the heat absorbed is given by :

[tex]Q=mc\Delta T[/tex]

Putting all the values in it we get :

[tex]Q=1210\ g\times 4.184\ J/g^{\circ} C\times (45-20)^{\circ} C\\Q=126566\ J\\\\\text{or}\\\\Q=126.5\ kJ[/tex]

So, the amount of heat absorbed is 126.5 kJ.

Answer : The net ionic equation will be,

[tex]3Sr^{2+}(aq)+2PO_4^{3-}(aq)\rightarrow Sr_3(PO_4)_2(s)[/tex]

Explanation :

In the net ionic equations, we are not include the spectator ions in the equations.

Spectator ions : The ions present on reactant and product side which do not participate in a reactions. The same ions present on both the sides.

The given balanced ionic equation will be,

[tex]3Sr(OH)_2(aq)+2Li_3​PO_4(aq)\rightarrow 6LiOH(aq)+Sr_3(PO_4)_2(s)[/tex]

The ionic equation in separated aqueous solution will be,

[tex]3Sr^{2+}(aq)+6OH^{-}(aq)+6Li^{+}(aq)+2PO_4^{3-}(aq)\rightarrow Sr_3(PO_4)_2(s)+6Li^+(aq)+6OH^{-}(aq)[/tex]

In this equation, [tex]Li^+\text{ and }OH^-[/tex] are the spectator ions.

By removing the spectator ions from the balanced ionic equation, we get the net ionic equation.

The net ionic equation will be,

[tex]3Sr^{2+}(aq)+2PO_4^{3-}(aq)\rightarrow Sr_3(PO_4)_2(s)[/tex]

The complete ionic equation for the reaction between aqueous solutions of strontium hydroxide and lithium phosphate is:

3Sr²⁺(aq) + 6OH¯(aq) + 6Li⁺(aq) + 2PO₄³¯(aq) —> Sr₃(PO₄)₂(s) + 6Li⁺(aq) + 6OH¯(aq)

The complete ionic equation is simply an equation showing all available entities including the spectator ions present in the solution.

With the above information in mind, we shall write the complete ionic equation for reaction between aqueous solutions of strontium hydroxide and lithium phosphate. This can be obtained as follow:

In solution, strontium hydroxide, Sr(OH)₂ and lithium phosphate, Li₃PO₄ will dissociate as follow:

Sr(OH)₂(aq) —> Sr²⁺(aq) + 2OH¯(aq)

Li₃PO₄(aq) —> 3Li⁺(aq) + PO₄³¯(aq)

The reaction will proceed as follow:

Sr(OH)₂(aq) + Li₃PO₄(aq) —>

Sr²⁺(aq) + 2OH¯(aq) + 3Li⁺(aq) + PO₄³¯(aq) —> Sr₃(PO₄)₂(s) + 3Li⁺(aq) + 2OH¯(aq)

Balance the equation by writing 3 before Sr²⁺, 6 before OH¯, 6 before Li⁺ and 2 before PO₄³¯, to obtain the complete ionic equation as shown:

3Sr²⁺(aq) + 6OH¯(aq) + 6Li⁺(aq) + 2PO₄³¯(aq) —> Sr₃(PO₄)₂(s) + 6Li⁺(aq) + 6OH¯(aq)

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One of the most effective ways to reduce greenhouse gases is using a car powered by fuel cells.

The term greenhouse gases refers to those gases that lead to a rise in the temperature of the earth due to the re-radiation of infrared rays towards the surface of the earth.

It is very important to take vital steps in order to prevent the emission of these gases. One of the most effective ways to reduce greenhouse gases is using a car powered by fuel cells.

Learn more about greenhouse gases: https://brainly.com/question/14131369?

Answer:

Using a car powered by fuel cells

Explanation:
B On Edge

Answer:

200K

Explanation:

Pressure is directly proportional to temperature.

100=225

x=450

(100*450)/225=x

x=45000/225

x=200

Answer:

HNO₃ =63.0147 g/mol

CaCO₃ = 100.088 g/mol

Explanation:

Molecular mass:

It is the sum of all the atomic masses of the atoms of elements present in a molecule.

For example:

The formula of CaCO₃:

Calcium carbonate consist of one atom of calcium, one atom of carbon and three atoms of oxygen. Thus, its molecular mass would be,

CaCO₃ = 40.078 × 1 + 12.01×1 + 16.00×3

CaCO₃ = 40.078 + 12.01+ 48

CaCO₃ = 100.088 g/mol

The formula of HNO₃:

Nitric acid consist of one atom of hydrogen, one atom of nitrogen and three atoms of oxygen. Thus, its molecular mass would be,

HNO₃ =1.008 × 1 + 14.0067 ×1 + 16.00×3

HNO₃ = 1.008 +14.0067 + 48

HNO₃ =63.0147 g/mol

Answer:

216g H2O

Explanation:

H = 1

O = 16

H= 2 × 1 = 2

O= 1 × 16 = 16

16 + 2= 18g/mol

18g H2O = 1 mol

X g H2O = 12 mol

X × 1 = 18 × 12

X = 216 g/mol

The weight of 12.0 moles of water is determined as 216 g.

The weight of water is determined from the molecular weight of water. The molecular weight of water is given 18 g/mol.

The weight of 12 moles of water is calculated as follows;.

W = nM

W = 12mole x 18 g/mol

W = 216 g

Thus, the weight of 12.0 moles of water is determined as 216 g.

Learn more about weight here:  https://brainly.com/question/2337612

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Answer:

Temperature remains constant while all of a solid is converted to a liquid.

When a solid is converted to a liquid, heat is absorbed.

Explanation:

During a phase change, the temperature of the system remains constant. Recall that latent heat is defined as heat that causes a change of state without a corresponding rise in temperature of the system.

When a solid is converted to a liquid, latent heat of fusion is involved hence the temperature of the system remains constant throughout the process.

Similarly, heat is absorbed as intermolecular forces are broken up and the would converts to liquid.

Answer:

Speed: The rate at which someone or something is able to move or operate. Motion: The action or process of moving or being moved.

Explanation:

I pretty much explained it in the answer, have a good one!

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Answer:i believe 9-?

Explanation:

boron-10

boron-11

carbon-12

carbon-13

oxygen-16

oxygen-17

oxygen-18

chlorine-35

chlorine-37