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Butoxors [25]
3 years ago
6

Used by science for all measurements

Chemistry
1 answer:
aev [14]3 years ago
8 0
It is b the metric system
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How many moles of cacl2 are in 250 ml of a 3.0 m of cacl2 solution?
Margarita [4]
The appropriate response is Proximity. Purposes behind going out on a limb of living unlawfully in another nation are not just the normal upgrades in pay and living conditions yet, in addition, the expectation of in the long run being permitted to stay in the nation legitimately, as there might be a way to getting to be plainly naturalized. Living in another nation wrongfully incorporates an assortment of confinements, and additionally the danger of being kept and expelled or of confronting different authorizations
8 0
4 years ago
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N which direction will the net reaction proceed.
finlep [7]

Answer:

1) The correct answer is option b.

2) The correct answer is option a.

Explanation:

1)

X+Y\rightleftharpoons Z

At 300 K, the value of the K_p=1.00

The K_c and K_p is related by :

K_p=K_c\times (RT)^{\Delta n}

where,

K_p = equilibrium constant at constant pressure

K_c = equilibrium concentration constant

R = gas constant = 0.0821 L⋅atm/(K⋅mol)

T = temperature = 300 K

\Delta n = change in the number of moles of gas = 1 - 2 = -1

Now put all the given values in the above relation, we get:

1.00=K_c\times (0.0821 L atm/(K mol)\times 300)^{-1}

K_c=24.63

The K_c of the reaction = 24.63

Given = [X] = [Y] = [Z] = 1.0 M

Value of reaction quotient = Q

Q=\frac{[Z]}{[X][Y]}=\frac{1.0 M}{1.0M\times 1.0 M}=1

Q, the equilibrium will move in forward direction that is in the right direction.

2)

X+Y\rightleftharpoons Z

At 300 K, the value of the K_p=1.00

Given = P_x = P_z = 1.0 atm, P_y = 0.50 atm

Value of reaction quotient in terms of partial pressure = Q_p

Q_p=\frac{P_z}{P_x\times P_y}=\frac{1.0 atm}{1.0 atm\times 0.50 atm}

Q_p=2

Q_p>K_pthe equilibrium will move in backword direction that is in the left direction.

6 0
3 years ago
Which of the following statements are TRUE concerning this laboratory exercise - The systematic identification of an organic com
emmainna [20.7K]

Answer:

True;

True;

False;

True;

True.

Explanation:

Organic compounds can be found pure, but generally, they are in mixtures, such as the petroleum, so it is possible to the compound received be impure;

Organic compounds can be found in the three states: solid, liquid or gas. The state will depend on the molecular forces in it and its molar mass. For example, gasoline is liquid in the ambient temperature, natural gas is a gas, and the glucose is solid;

The main characteristic of the organic compounds is the presence of C and H, the other elements can or can't be in the structure: O, N, halogens, and S;

Because of the carbon can form chains, there are several million possible known organic compounds;

The spectroscopic would give some results such as composition, molar mass, and diffraction, and with these results, it would be possible to identify some chemical properties and the tests needs more identification.

5 0
4 years ago
What color is a carrot
Amanda [17]

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3 years ago
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3 complete paragraphs on Static Electricity
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friction based electricity is an awkwardness of electric charges inside or on the outside of a material. The charge stays until it can move away through an electric flow or electrical release.

In view of similar kinds of examinations like the one you performed, researchers had the option to set up three laws of electrical charges: Inverse charges pull in one another. Like charges repulse one another. Charged items pull in nonpartisan articles.

4 0
3 years ago
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