[EASY][50pt] Temperature vs Time Graph
5. In what state of matter does this substance exist at the 22 minute mark?

6.At what temperature does condensation occur?

7.What phase change occurs at 70C

Aria speed during scuba diving was 0.15 m/s.

Speed is the ratio of the distance travelled to the time taken. Speed is given by:

Speed = distance / time

Given that the distance travelled was 36 meters and the time was 4 minutes, hence:

Time = 4 minutes × 60 seconds per minute = 240 seconds

Speed = 36 m / 240 s

Speed = 0.15 m/s

Therefore Aria speed during scuba diving was 0.15 m/s.

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Answer:

It's also true

Explanation:

the answer is written in this question

I hope that helps

Answer:

5.9405*10^14 Hz

Explanation:

Remember the equation c=v*λ

v=frequency

λ=wavelength

By manipulating the equation, we can get it in terms of frequency:

c/λ=v

Now convert wavelength to meters (1nm=m*10^-9)

5.05*10^-7m (2 decimal places were shifted to make the number between 1-10, hence the -7 exponent)

Use the manipulated equation:

(3.00*10^8)/(5.05*10^-7), which yields:

5.9405*10^14 Hz (or s^-1)

The frequency of the photon will be "[tex]5.9405\times 10^{14} \ Hz[/tex]".

According to the question,

Wavelength,

or,

          [tex]= 5.05\times 10^{-7} \ m[/tex]

As we know the equation,

→ [tex]c = v\times \lambda[/tex]

or,

→ [tex]v = \frac{c}{\lambda}[/tex]

By putting the values, we get

     [tex]= \frac{3.00\times 10^8}{5.05\times 10^{-7}}[/tex]

     [tex]= 5.9405\times 10^{14} \ Hz[/tex]

Thus the above answer is right.

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Answer:

magnesium and copper(II) sulfate  no reaction

iron and magnesium sulfate                  reaction

copper and iron(III) nitrate                  reaction

magnesium and hydrochloric acid  reaction

Explanation:

Answer:

positive reaction for Molisch's test is given by almost all carbohydrates (exceptions include tetroses & trioses). It can be noted that even some glycoproteins and nucleic acids give positive results for this test (since they tend to undergo hydrolysis when exposed to strong mineral acids and form monosaccharides).

Answer:

glycoproteins

Explanation:

A positive reaction for Molisch's test is given by almost all carbohydrates (exceptions include tetroses & trioses). It can be noted that even some glycoproteins and nucleic acids give positive results for this test (since they tend to undergo hydrolysis when exposed to strong mineral acids and form monosaccharides).

Answer: Định luật Raoult là một định luật hóa học vật lý, với ý nghĩa trong nhiệt động lực học. Được thành lập bởi nhà hóa học người Pháp François-Marie Raoult vào năm 1887, nó nói rằng áp suất một phần của mỗi thành phần của một hỗn hợp chất lỏng lý tưởng bằng với áp suất hơi của thành phần tinh khiết nhân với phần nốt ruồi của nó trong hỗn hợp. Kết quả là, việc giảm áp suất hơi tương đối của dung dịch pha loãng của chất tan không lây bằng với phần nốt ruồi của chất tan trong dung dịch.

Explanation: hope this helps :)

Answer:

join id(8606512121) pas(12345)

Answer:

heightens

Explanation:

Answer:

metallic bonding is the bond form between two or more metal elements or between metal element and the other group elements

Answer:

A. What is the concentration of nitric acid?

Explanation:

its right

Answer:

A

Explanation:

Answer:

Fe2(SO4)3(H2O)n

Explanation:

Answer:

sorry I couldn't understand the question

Explanation:

9) a) (9.84×10³)/(6.12×4.27×10³+⁷) = 9.84×10³/6.12×4.27×10¹⁰ = 9.84×10³-¹⁰/6.12×4.27

= 0.376×10^-7.

b) (4.36×10⁸×1.82×10³)/(0.0856×4.7×10⁶)

= (7.9352×10⁸+³)/(0.40232×10⁶)

= 19.72×10⁸+³-⁶ = 19.72×10⁵

hope this helps you.

Using Charles law

[tex]\\ \sf\longmapsto V_1T_2=V_2T_1[/tex]

[tex]\\ \sf\longmapsto V_2=V_1T_2\div T_1[/tex]

[tex]\\ \sf\longmapsto V_2=\dfrac{49.8(356)}{291}[/tex]

[tex]\\ \sf\longmapsto V_2=\dfrac{17728.8}{291}[/tex]

[tex]\\ \sf\longmapsto V_2=60.9mL[/tex]

Answer:

Okay ask away. . . You haven't asked anything that we would be able to answer

Taking into account the definition of density,  the mass of two cubic inches (2.00 in³) of gold is 632.54 grams.

But first you must know the definition of density. Density is defined as the property that matter, whether solid, liquid or gas, has to compress into a given space.

In other words,  density is a scalar quantity referring to the amount of mass in a given volume of a substance, that is, it shows the relationship between the weight (mass) of a substance and the volume it occupies.

Then, the expression for the calculation of density is the quotient between the mass of a body and the volume it occupies:

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

In this case, you know that:

Replacing in the definition of density:

[tex]19.3\frac{g}{cm^{3} } =\frac{mass}{32.7741 cm^{3} }[/tex]

Solving:

mass= 19.3 [tex]\frac{g}{cm^{3} }[/tex]× 32.7741 cm³

mass= 632.54 g

In summary, the mass of two cubic inches (2.00 in³) of gold is 632.54 grams.

Learn more about density:

Answer:

B

Explanation:

Answer:

B

Explanation:

U can read the second part

Answer:

Olfactory indicators

Explanation:

The substance whose odour changes in an acidic of basic medium are called olfactory indicators. In an olfactory indicator , smell varies depending on whether it is mixed with an acidic or basic solution.

Answer:

Carbon 3 is double bonded to an oxygen and attached to carbon 2 and carbon 4. :

Answer: Carbonyl group ( Ketone or aldehyde)

Carbon 17 is attached to an oxygen, which is attached to a hydrogen. :

Answer: Carboxyl group (Carboxylic acid)

A central carbon is attached to an amine, two hydrogens, and a carbon that is double bonded to an oxygen and single bonded to an oxygen attached to a hydrogen. :

Answer: Amide group

An amide group contains both amine and carboxyl

[tex].[/tex]

Answer:

kombinasi kuda-kuda belakang

Explanation:

maaf kalau salahnya

Percentage yield shows the amount of reactants converted into products. The percentage yield of the reaction is 51.7%.

The equation of the reaction is sown in the image attached. The reaction is 1:1 as we can see.

Number of moles of NaBr = 10 g/103 g/mol = 0.097 moles

We can obtain the mass of 3-methyl-1-butanol from its density.

Mass = density × volume

Density of 3-methyl-1-butanol =  0.810 g/mL

Volume of  3-methyl-1-butanol = 9 mL

Mass of 3-methyl-1-butanol = 0.810 g/mL × 9 mL

Mass of 3-methyl-1-butanol = 7.29 g

Number of moles of 3-methyl-1-butanol =  mass/molar mass =  7.29 g/88 g/mol = 0.083 moles

Since the reaction is 1:1 then the limiting reagent is 3-methyl-1-butanol

Mass of product 1-bromo-3-methylbutane = number of moles × molar mass

Molar mass of 1-bromo-3-methylbutane = 151 g/mol

Mass of product 1-bromo-3-methylbutane = 0.083 moles × 151 g/mol

= 12.53 g

Recall that % yield = actual yield/theoretical yield × 100

Actual yield of product = 6.48 g

Theoretical yield = 12.53 g

% yield = 6.48 g/12.53 g × 100

% yield = 51.7%

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Answer:

[tex]\huge\boxed{\sf 2.27\ atm = 1,725\ mm\ of\ Hg}[/tex]

Explanation:

We know that:

1 atm = 760 mm of Hg (Standardly)

Multiply both sides by 2.27

2.27 atm = 760 * 2.27 mm of Hg

2.27 atm = 1,725 mm of Hg

[tex]\rule[225]{225}{2}[/tex]

Hope this helped!

Answer:

number of moles = 0.1001 mol

Explanation:

number of moles = mass/molar mass

number of moles = 3.65g / 36.459 g/mol

n = 0.1001 mol

Answer:

Explanation:

Explanation:

Ionization is the process by which ions are formed by gain or loss of an electron from an atom or molecule. If an atom or molecule gains an electron, it becomes negatively charged (an anion), and if it loses an electron, it becomes positively charged (a cation). Energy may be lost or gained in the formation of an ion.

Answer:

If you could miraculously remove two neutrons from an atom's nucleus, the atomic number and electrical charge would stay unaltered. Because neutrons have no electrical charge, adding or removing them from the nucleus has no effect on the nucleus's electrical charge. It does, however, alter the nucleus's mass. Isotopes are formed by adding or subtracting neutrons from the nucleus.

Answer:

The flask contains 25 mL of an unknown diprotic acid aqueous solution that reacts in a 1:2 stochiometric ratio with NaOH. Titrate the solution with NaOH to determine the concentration of the acid. Perform a titration by setting the concentration of the NaOH solution and adding it to the acid solution using the different Add Base buttons. The equilvalence point of the titration is passed when the indicator color changes. The unknown sample can be titrated multiple times by pressing the Retitrate button and starting over. Enter the concentration of the unknown acid solution.

Explanation: