Base your answers on the graph below, which represents uniform cooling of a sample of a pure substance, starting as a gas. Solid and liquid phases can exist in equilibrium between points

Answer:

I think the insect would be the one in the second photo reading from left to right

Explanation:

the other insects:

the first of the first photo is a change of what would be the external surface of the insect, it is not the insect itself.

In the third photo, the insect has short legs with little grip, which indicates that it does not climb large areas on top, and finally, the 4 image is of an insect that lives in desert areas and is poorly coordinated in areas of high heat. and sand.

These are the reasons why I chose photo number two reading from left to right

Answer:

I would say that your answer would be the second one.( the red one)

Explanation:

because the legs it has seem like it would grip onto trees fairly well.

Answer:

Because of the difficulties of measuring the atmosphere's properties above the earth's reachable surface

Explanation:

Hello,

In this case, meteorology is the branch of science studying the atmosphere in its weather processes and forecasting and it had a late development because of the difficulties of measuring the atmosphere's properties above the earth's reachable surface. We cannot forget that even nowadays, it is very difficult to predict upcoming weathers with the 100 % assurance and with many days in advance.

Best regards.

Meteorology is developed lately as compared to other branches of science due to far away from the reach of humans.

Meteorology is a late developer compared to other branches of science because the measuring the climatic conditions in the atmosphere is difficult and even impossible without the presence of advance technologies.

To find out the weather as well as climatic conditions can't be measured due to it is not reachable to the human like other materials present on the earth surface so we can conclude that meteorology is developed lately as compared to other branches of science due to far away from the reach of humans.

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Answer:

C.

Explanation:

In C.) Tyler is not suggesting that one race is better than another he is only suggesting his own non biased opinion on what courses should be taught at his school.

Answer:

Explanation:

C

Answer:

No. it,s not possible.

Explanation:

Because you know that ionic compound is having large inter-molecular forces. -77C* is for a compound having v.very small inter-molecular forces.you must know that M.B is directly varing with inter-molecular forces.

Answer:

[tex]3H_2S+2Ga(ClO_3)_3\rightarrow Ga_2S_3+6HClO_3[/tex]

Explanation:

Hello,

In this case, the described chemical reaction is:

[tex]H_2S+Ga(ClO_3)_3\rightarrow Ga_2S_3+HClO_3[/tex]

After balancing, we must assure the same quantity of atoms of all the elements at both reactants and products:

[tex]3H_2S+2Ga(ClO_3)_3\rightarrow Ga_2S_3+6HClO_3[/tex]

Thus, we find two galliums, three sulfurs, six chlorines, six hydrogens and eighteen oxygens at both reactants and products.

Best regards.

Answer:

D & E

Explanation:

I think this is dealing with latent heat and D & E would be the range where you will find solid and liquid phases in equilibrium, cuz it starts as gas at from A to B, B to C is gas and liquid equilibrium, C to D is liquid, D to E solid and liquid, and then E to F is solid.

Answer:

Here's what I get  

Explanation:

A. Prepare Ca(NO₃)₂ solution

Scoopula  — to transfer the solid to an Erlenmeyer flask

Erlenmeyer flask — to hold the solid for weighing and to prepare the solution

Volumetric flask — to hold the liquid

Funnel — to transfer the solution to the volumetric flask

Wash bottle — to fill the volumetric flask to the mark

B. Weigh K₂SO₄

Scoopula  — to transfer the solid to a weighing bottle

Weighing bottle — to hold the solid for weighing.

C. Add acetic acid to a volumetric flask

Volumetric flask — to hold the acid

Pipet —to measure out the acid and transfer it to the flask

Pipet bulb — safety feature for the pipet and for control of the acid volume.

D. Add NaOH to an acid

Beaker — to hold the NaOH solution

Ring stand — to hold a buret  

Buret clamp — to hold the buret

Funnel — to transfer the solution to a buret

Buret — to hold the NaOH solution for addition to the acid

Answer:

a. 1.23 V

b. No maximum

Explanation:

Required:

a. Is there a minimum standard reduction potential that the half-reaction used at the cathode of this cell can have?

b. Is there a maximum standard reduction potential that the half-reaction used at the cathode of this cell can have?

The standard cell potential (E°cell) is the difference between the standard reduction potential of the cathode and the standard reduction potential of the anode.

E°cell = E°red, cat - E°red, an

If E°cell must be at least 1.10 V (E°cell > 1.10 V),

E°red, cat - E°red, an > 1.10 V

E°red, cat - 0.13V > 1.10 V

E°red, cat > 1.23 V

The minimum standard reduction potential is 1.23 V while there is no maximum standard reduction potential.

Answer:

Explanation:

HF acid

F ⁻ conjugate base , name is fluoride ion .

H₂O acid

OH⁻ conjugate base , name hydroxide ion

H₂CO₃ acid ,

HCO₃⁻ conjugate base , name bicarbonate ion .

HSO₄⁻ acid bisulphate ion

SO₄⁻² ion , conjugate base ,name sulphate ion .

Answer:  A degenerate pressure will generate a large force to repel further  compression.

Explanation: In the production of new stars from the core of old dying white dwarf stars, the inner parts of the star will experience contraction with the release of  heat , as they contract, their atoms will be  squeezed such that their electrons start to overlap, and because of the Pauli's exclusive principle which states that no two electrons can occupy same space, the electrons will begin to repel each other and an opposing pressure called degenerate pressure will create a force so that the electrons  cannot continually be crushed or overlap. With the limit of contraction, the outer parts of the star will expand and be repelled releasing the old stars called nebula  and creating space for the inner new stars to form.

Answer:

A) It indicates the direction in which the reaction occurs.

Explanation:

The reason we don't use equals signs (=) in chemical reactions is because of the Identity Property of Equality (if a = b then b = a), which would allow us to reverse reactions. Reactions can't just be reversed (since some don't even occur); we need to know what is reacting to make what. Thus, we use the arrow, or yields symbol to denote this.

The substances to the left of the sign are the reactants, the ones that are reacting, and the ones on the right are the products, the ones that are being produced from the reactants. The arrow is an excellent way to represent the direction the reaction occurs in as the way it's written clearly demonstrates direction.

Hope this helps!

Answer:

there are approximately 52 moles in 15 grams of lithium.

Answer:

H₂²⁺(aq) + O₂²⁻(aq) + SO₃²⁻(aq) → SO²⁻₄(aq) + H₂O(l)

Explanation:

H₂²⁺(aq) + O₂²⁻(aq) + Mg²⁺(aq) + SO₃²⁻(aq) → Mg²⁺(aq) + SO²⁻₄(aq) + H₂O(l)

A careful observation of the equation above, shows that the equation is already balanced.

To obtain the net ionic equation, we simply cancel Mg²⁺ from both side of the equation as shown below:

H₂²⁺(aq) + O₂²⁻(aq) + SO₃²⁻(aq) → SO²⁻₄(aq) + H₂O(l)

Answer:

1.heat a pan of water with just a little bit of water,have a boil

2.chosse ure salt

3.stir in has much salt has u can than take the pan off the heat

4.pour the mix into a glass jar

5.tie a string to an objeet that can lay accross the top and put just the string in ure mix

Explanation oh and look at it everyday       hope that helps

Answer:

See below

Explanation:

The process through which DNA replicates itself in the course of the cell division shall be DNA replication. There was a mistake. A 'Y' shape is generated by the separation of the two individual DNA strands called a 'field' replication. These two different strands act as models for the creation of new DNA strands

Hope this helps.

Answer:

thermal energy

Explanation:

Answer:

B- Thermal Energy

Explanation:

Thermal energy is produced due to all of the movement of particles inside the material.

Answer:

1.32 mole

Explanation:

The following data were obtained from the question:

Volume of solution = 2.2L

Molarity of solution = 0.60M

Mole of Li3PO4 =..?

Molarity is simply defined as the mole of solute per unit litre of the solution. Mathematically, it is represented as:

Molarity = mole /Volume

With the above formula we can easily calculate the number of mole of Li3PO4 as shown below:

Molarity =mole /Volume

0.6 = mole of Li3PO4 /2.2

Cross multiply

Mole of Li3PO4 = 0.6 x 2.2

Mole of Li3PO4 = 1.32 mole

Therefore, 1.32 mole of Li3PO4 is contained in the solution.

Answer:

19.7 L

Explanation:

Answer:

The answer is 19.7

Explanation:

Answer:

B

Explanation:

Explanation:

Na

Na (gas) -> Na+ (g) + e-

Answer:

Rb

Explanation:

Answer:

17.2mL

Explanation:

Step 1:

Determination of the molarity of potassium phosphate K3PO4 solution.

This is illustrated below:

Mass of K3PO4 = 46.3g

Molar Mass of K3PO4 = (39x3) + 31 + (16x4) = 212g/mol

Mole of K3PO4 =..?

Mole = Mass /Molar Mass

Mole of K3PO4 = 46.3/212 = 0.218 mole

Volume of water = 250mL = 250/1000 = 0.25L

Molarity = mole /Volume

Molarity of K3PO4 = 0.218/0.25

Molarity of K3PO4 = 0.872M

Step 2:

Determination of the volume of the stock solution of K3PO4 needed.

Molarity of stock solution (M1) = 0.872M

Volume of stock solution needed (V1) =..?

Molarity of diluted solution (M2) = 0.1M

Volume of diluted solution (V2) = 150mL

The volume of the stock solution needed can be obtained as follow:

M1V1 = M2V2

0.872 x V1 = 0.1 x 150

Divide both side by 0.872

V1 = (0.1 x 150)/0.872

V1 = 17.2mL

Therefore, the volume of the stock solution needed is 17.2mL

Answer:

Volume of carbon dioxide is 428.23 L.

Explanation:

Below is the chemical reaction or chemical equation for the combustion of hydrocarbons such as undecane into carbon dioxide.

[tex]C_{11}H_{24}(l) + 17O_{2}(g) \to 11CO_{2} (g) + 12H_2O(g)[/tex]

Here, undecane is in liquid form that reacts with gaseous oxygen (combustion)  and produces carbon dioxide and water as a product in the gaseous form.

The molar mass of undecane = [tex]156.31 g/mol.[/tex]

[tex]\text{Number of moles} = \frac{260g}{156.31g/mol} = 1.66 \ mol.[/tex]

From the equation, it can be seen that 1 mole of undecane produces 11 moles of carbon dioxide. Therefore, 1.66 mol will produce 18.26 mol of carbon dioxide.

Now find the volume of 18.26 mol of carbon dioxide when the temperature is 13 degrees Celsius and pressure is 1 atm.

[tex]V = \frac{nRT}{P} \\[/tex]

[tex]V = \frac{18.26 \times 0.082 \times 286 \ K}{1atm} \\[/tex]

[tex]V = 428.23 \ L[/tex]

Answer:

The answer is "16"

Explanation:

In the question given, it asks about the partial carbon dioxide ([tex]CO_2[/tex]) pressure, which is directly related to the oxygen ([tex]O_2[/tex]) to carbon dioxide ([tex]CO_2[/tex]) mole ratio, which is 1 to 4.

Answer:

The reduction potential of   [tex]Cu^2+/Cu[/tex] is  [tex]E_c^o = 0.34 \ V[/tex]

Explanation:

From the question we are told that

      The potential of the cell is  [tex]M_{cell} = E^o _{cell} = 1.100 \ V[/tex]

       The range is  [tex]R = 0.005 \ V[/tex]

        The temperature is  [tex]T = 25 ^oC[/tex]

Note the reason why Zn is oxized and  Cu is reduced is because Zn is higher than Cu on the electrochemical series

    The reaction at the anode is  

              [tex]Zn ^{2-} _{(aq)} + 2e \to Zn_{(s)} \ \ \ \ \ E^o_a = -0.76 \ V[/tex]    

The [tex]E^o\ is \ the \ standard\ oxidation \ potential\ value\ for\ Zn\ oxidation[/tex]

    The reaction at the anode is  

             [tex]Cu^{2+} _{(aq)} + 2e^{-} \to Cu_{(s)} \ \ \ \ \ \ \ \ E^o_c = c \ V[/tex]  

Now

          [tex]E^o _{cell} = E_c^o - E_a^o[/tex]  

substituting values

           [tex]1.100 = E_c^o -(- 0.76)[/tex]

           [tex]E_c^o = 1.100 - 0.76[/tex]

           [tex]E_c^o = 0.34 \ V[/tex]

Hence the reduction potential of   [tex]Cu^2+/Cu[/tex] is  [tex]E_c^o = 0.34 \ V[/tex]

Answer:

Earth's crust

Explanation:

The lithosphere is the rigid outer part of the earth, consisting of the crust and upper mantle. It is the, rigid, rocky outer layer of the Earth, consisting of the crust and the solid outermost layer of the upper mantle. It extends to a depth of about 60 miles (100 km). It is the outer part of the solid earth composed of rock essentially like that exposed at the surface, consisting of the crust and outermost layer of the mantle.

We can also look at it as the solid part of the earth on which plants grow and animals survive. It contains all the rock formations that bear the various minerals found on earth.

The lithosphere is composed of both the crust and the portion of the upper mantle that behaves as a brittle, rigid solid.

Answer:

The answer to your question is given below

Explanation:

1. 2,4-dimethylhexane can be drawn as follow:

a. The parent name: Hexane i.e it contains 6 carbon atom.

b. The substitute group attached: Methyl i.e CH3 and it is at carbon 2 and 4.

c. Draw 6 carbon atom in a straight line and put CH3 at carbon 2 and 4. As shown in attach photo.

2. 4-methyl-2-pentene can be drawn as follow:

a. The parent name: pentene i.e it contains 5 carbon atom and the double bond is at carbon 2.

b. The substitute group attached: Methyl i.e CH3 and it is at carbon 4.

c. Draw 5 carbon atom in a straight line and put a double bond at carbon 2 and CH3 at carbon 4 as shown in attach photo.

3. 4-chloro-7-methyl-2-nonyne can be drawn as follow:

a. The parent name: nonyne i.e it contains 9 carbon atom and the triple bond is at carbon 2.

b. The substitute group attached:

i. Chlorine (Chloro) i.e Cl and it is at carbon 4.

ii. Methyl i.e CH3 and it is at carbon 7.

c. Draw 9 carbon atom in a straight line and put a triple bond at carbon 2, Cl at carbon 4 and CH3 at carbon and 7 as shown in attach photo.

answer :

b because 24 <3

Explanation:

hdjsna surveyed I need points lol sorry for wasting time

Answer:

single replacement reaction

Explanation:

This is a kind of single replacement reaction where you switch either cations or anions. Here you switched Ca for H and produced Cacl2 and H2 gas by itself.

Answer:

It is a displacement reaction

Answer:

The three parts of the seed are the embryo, endosperm and the seed coat.

Explanation:

The embryo is the young multicellular organism before it emerges from the seed. The endosperm is a source of stored food which consists mostly of starches. The seed coat consists of one or more protective layers that encase the seed.

Hope this helps x