bank reconciliation statement , teacher , explain.​

Answer:

Saan yung tanong?? +?? ++?

Answer:

243 K.

Explanation:

From the question given above, the following data were obtained:

Initial volume (V₁) = 0.2 L

Initial temperature (T₁) = 270 K

Final volume (V₂) = 0.18 L

Final temperature (T₂) =?

The final temperature of the gas can be obtained by using the Charles' law equation as illustrated below:

V₁ / T₁ = V₂ / T₂

0.2 / 270 = 0.18 / T₂

Cross multiply

0.2 × T₂ = 270 × 0.18

0.2 × T₂ = 48.6

Divide both side by 0.2

T₂ = 48.6 / 0.2

T₂ = 243 K

Thus, the final temperature of the gas is 243 K

Answer:

SnCl2 is nonlinear due to the presence of lone pair of electrons on the central atom.....

Answer:

5 is the perfect Ans for this

I think the answer as communicating findings.

The scientific method is the use of various steps to solve the question and reach the solution. A chemist writing report for making a new compound is following the communication findings. Thus, option C is correct.

The scientific method has been the use of various procedures and steps that involves observation, experimentation, measurement, testing, etc. to reach the solution for the formulated hypothesis. It allows the understanding of the solutions to the question asked.

It also includes communicating findings that include the writing of a report that has been using the scientific method to research the subject matter and has been constituted of introduction, results, experimentation methods, discussions, observations, etc.

A chemist writing a report shows communication findings as they are reporting the hypothesis and the scientific method to the other scientists and uses the knowledge to formulate the experiment.

Therefore, option C. communicating findings is the correct option.

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Answer:

2. [tex]V_2=17L[/tex]

3. [tex]V=82.9L[/tex]

Explanation:

Hello there!

2. In this case, we can evidence the problem by which volume and temperature are involved, so the Charles' law is applied to:

[tex]\frac{V_2}{T_2}=\frac{V_1}{T_1}[/tex]

Thus, considering the temperatures in kelvins and solving for the final volume, V2, we obtain:

[tex]V_2=\frac{V_1T_2}{T_1}[/tex]

Therefore, we plug in the given data to obtain:

[tex]V_2=\frac{18.2L(22+273)K}{(45+273)K} \\\\V_2=17L[/tex]

3. In this case, it is possible to realize that the 3.7 moles of neon gas are at 273 K and 1 atm according to the STP conditions; in such a way, considering the ideal gas law (PV=nRT), we can solve for the volume as shown below:

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

Therefore, we plug in the data to obtain:

[tex]V=\frac{3.7mol*0.08206\frac{atm*L}{mol*K}*273.15K}{1atm}\\\\V=82.9L[/tex]

Best regards!

Answer:

Cordera is colder than Hillsdale.

Explanation:

They may be at a similar latitude. But you also have to consider the currents nearby the location.

The prevailing wind closer to the equator which carries warm current hits Hillsdale which is why it follows the coastline of the continent. However, for Cordera prevailing winds carrying cold currents hits the continent and follows or hits the coastline of Cordera.

Answer:

The combined gas law combines the three gas laws: Boyle's Law, Charles' Law, and Gay-Lussac's Law. It states that the ratio of the product of pressure and volume and the absolute temperature of a gas is equal to a constant. When Avogadro's law is added to the combined gas law, the ideal gas law results.

Explanation:

Hope this helps

~Bre

Answer:

One molecule

Explanation

But there is three different atoms forming this one NaOH. The three atoms are Na, O and H, that is one sodium, one oxygen, and one hydrogen.

Answer:

-4.4 kJ

Explanation:

Answer:

Nichrome

Answer: Hot water system coils are commonly made up of metal alloys which are a combination of two or more elements. The most commonly used metal alloy is “Nichrome”. Nichrome is an alloy of nickel (80%) and chromium (20%).

Answer:

C. Alpha

Explanation:

I did it and I got it right

Answer: C. Alpha

Explanation:

[tex]\huge{\textbf{\textsf{{\color{pink}{An}}{\red{sw}}{\orange{er}} {\color{yellow}{:}}}}}[/tex]

The mas.s of evaporating dish is 21.345g B.

Answer:

Beryllium

Explanation:

Answer:

4.28g

Explanation:

Answer:

2000 L

General Formulas and Concepts:

Atomic Structure

Gas Laws

Ideal Gas Law: PV = nRT

Explanation:

Step 1: Define

[Given] 8.8 moles gas

[Given] 0.12 atm

[Given] 56 °C = 329.15 K

Step 2: Solve for V

Step 3: Check

Follow sig fig rules and round. We are given 2 sig figs.

1981.7 L ≈ 2000 L

Answer:

Option H

Explanation:

We can get the temperature of the gas by applying ideal gas law,

PV = nRT

Here, P = Pressure of the gas

V = Volume of the gas

n = Number of moles

R = Gas constant

T = Temperature

By substituting the values in the given equation,

5.40 × 120 = 4 × 0.0821 × T

648 = 0.3284T

T = [tex]\frac{648}{0.3284}[/tex]

T = 1973.20

   ≈ 1973 K

Therefore, temperature of the gas is 1973 °K

Option H will be the answer.

Answer:

Q = -897 kJ/mol

Explanation:

From the given information:

The heat released Q = -65.9 kJ

To start with the molar mass of [tex]H_2O_2[/tex] = 2 × (molar mass of H) + 2 × (molar mass of O)

= (2 × 1.008) + (2 × 16.0 )

= 34.016 g/mol

However, given that:

mass of [tex]H_2O_2[/tex]  2.50 g

The number of moles of [tex]H_2O_2[/tex]  = [tex]\dfrac{mass}{molar \ mass}[/tex]

[tex]= \dfrac{2.5}{34.016}[/tex]

[tex]= 7.349 \times 10^{-2} \ mol[/tex]

Finally; Using the formula:

[tex]\Delta H = \dfrac{Q}{number \ of \ moles}\\ \\ Q = \dfrac{-65.9 \ kJ}{7.349 \times 10^{-2} \ mol}[/tex]

Q = -897 kJ/mol

Answer:

B.

Explanation:

Answer: A and C

Explanation:

Answer:

The second part is A

Answer:

When magnesium ions are broken off the solid lattice and go into solution, there is enough attraction between the 2+ ions and the water molecules to get co-ordinate (dative covalent) bonds formed between the magnesium ions and lone pairs on surrounding water molecules… making it more conductive than sodium.

Answer:

12 moles of water (E)

Explanation:

The first step is to see that the equation is balanced. It is now, but you did something strange to the Mg3N2.

Mg3N2(s) + 6H20(l)   ======>  3Mg(OH)2(s) + 2NH3(g)

What the equation is telling you is that 1 mol of Mg3N2 requires 6 moles of water for the reaction to occur.

So 2 mols of Mg3N2 would require 6*2 mols of water to react.

The answer is 12 moles of water

Answer:

Explanation:

same thing as normal plane. just replace normal metal with this new sick metal :cool:

also make sure it weighs a good amount and won't fall from weight... im confused was this already answered???

Answer:

Collaborate with other engineers in the design of a plane made from this metal

Explanation:

<3

The molarity of HCl will be "1.10 M".

According to the question,

Moles of solute,

Solution,

As we know the formula,

→ [tex]Molarity = \frac{Moles \ of \ solute}{Liters \ of \ solution}[/tex]

By substituting the values, we get

→                 [tex]= \frac{0.220}{0.2}[/tex]

→                 [tex]= 1.10 \ M[/tex]

Thus the above approach i.e., "option d" is correct.

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Sorry but I really need these points I just need 5 more sorrrryyy

Explanation:

0.3,1.2, or 2.1. sorry if it's wrong.

Answer:

2p

Explanation:

Boron is a member of group 13. The highest energy sub-level is usually found on the outermost shell of the atom of the element involved.

For a group 13 element, its outermost shell configuration is ns2 np1. The electronic configuration for boron is; 1s2 2s2 2p1.

Hence the highest energy sub-level in boron is 2p.