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Please help me I’m not sure with that

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Answer 1

Answer: What I can’t see the pic ?hhbc639l73773 ghcbhjbch

Answer 2

Answer:

Answer:

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Explanation:

Related Questions

(NH4)2S(aq)+SrCl2(aq)→Express your answer as a chemical equation. Enter NOREACTION if no reaction occurs. Identify all of the phases in your answer.
Consider the titration of 25.0 mL of 0.340 M HCl with 0.160 M NaOH. What volume of NaOH is required to reach the equivalence point?
In each of the three reactions between NaOH and HCl, the sign of q for the water was positive. This means the the sign of q for the reaction was ______ and the reaction was ______.
1. If a solution of sodium chloride has 22.3 g ofNaCl, and a volume of 2.00 L, what is its molarity?
The Heat of vaporization for NH3= 1360 J/g. Calculate the quantity of heat energy (in kJ)needed to completely boil a 155 gram sample at its boiling pointgeneral formula

Sulfur dioxide and oxygen react to form sulfur trioxide during one of the key steps in sulfuric acid synthesis. An industrial chemist studying this reaction fills a 50.0L tank with 14. mol of sulfur dioxide gas and 2.6 mol of oxygen gas, and when the mixture has come to equilibrium measures the amount of sulfur trioxide gas to be 1.6 mol. Calculate the concentration equilibrium constant for the reaction of sulfur dioxide and oxygen at the final temperature of the mixture. Round your answer to 2 significant digits.

Answers

Answer:

Explanation:

From the given information:

The equation for the reaction can be represented as:

$2SO_2 + O_2 \to 2SO_3$

The I.C.E table can be represented as:

2SO₂ O₂ 2SO₃

Initial: 14 2.6 0

Change: -2x -x +2x

Equilibrium: 14 - 2x 2.6 - x 2x

However, Since the amount of sulfur trioxide gas to be 1.6 mol.

SO₃ = 2x,

then x = 1.6/2

x = 0.8 mol

For 2SO₂; we have 14 - 2x

= 14 - 2(0.8)

= 14 - 1.6

= 12.4 mol

For O₂; we have 2.6 - x

= 2.6 - 1.6

= 1.0 mol

Thus;

[SO₂] = moles / volume = ( 12.4/50) = 0.248 M ,

[O₂] = 1/50 = 0.02 M ,

[SO₃] = 1.6/50 = 0.032 M

Kc = [SO₃]² / [SO₂]² [O₂]

= ( 0.032²) / ( 0.248² x 0.02)

= 0.8325

Recall that; the equilibrium constant for the reaction $2SO_2 + O_2 \to 2SO_3$ = 0.8325;

If we want to find:

$SO_2 + (1)/(2)O_2 \to SO_3$

Then:

$K_c = (0.8325)^(1/2)$

$\mathbf{K_c = 0.912}$

Since no temperature is given to use in the question, it will be impossible to find the final temperature of the mixture.

Ne belongs to what group. a. noble gases, b.alkali metals, c. halogens, d. alkaline earth metals

Answers

The answer is A hope this helps

Inside a calorimeter, two solutions are mixed and result in an endothermic reaction. Which of the following best illustrates how this reaction affects the water in the calorimeter? (2 points)Select one:
a. The reaction has no effect on the water. The kinetic energy of the water molecules remains the same.
b. The reaction causes the temperature of the water to increase. The kinetic energy of the water molecules increases.
c. The reaction causes the temperature of the water to decrease. The kinetic energy of the water molecules decreases.
d. The reaction causes the temperature of the water to decrease. Then, the water gains heat from the surroundings and the kinetic energy of the water molecules increases.

Answers

The correct option is C. A calorimeter is an isolated system. In isolated systems there is no exchange whatsoever with the surrounding. In an isolated system, an endothermic reaction results in a decrease in the temperature of the system. This is in contrast to the effect of an endothermic reaction in an open system. The heat of reaction remains a positive quantity.

A car is traveling at 87.0 km/hr. How many meters will it travel in 37.0 seconds?

Answers

Speed of the car = $87.0 (km)/(hr)$

Given time = 37.0 s

Converting time from seconds to hours:

1 hr= 60 min; 1 min = 60 s

$37.0 s * (1 min)/(60s)*(1 hr)/(60min) = 0.0103 hr$

Calculating distance from speed and time:

$0.0103 hr * (87.0 km)/(1 hr) =0.894 km$

Converting distance from km to m:

$0.894 km * (1000 m)/(1 km) = 894 m$

So the distance traveled by the car in 37.0 s is 894 m.

What is the electron configuration for26 / 12 Mg^+2

1s2 2s2 2p6 3s2 3p2

1s2 2s2 2p6 3s2 3p6 4s2 3d4

1s2 2s2 2p6

1s2 2s2 2p6 3s2 3p6 4s2 3d6

1s2 2s2 2p6 3s2

Answers

Answer:

The number of electrons for the Mg atom are 12 electrons. The electron configuration of magnesium is,

Mg (Z= 12) = 1s2 2s2 2p6 3s2

Explanation:

The first two electrons is placed in the 1s orbital. The 1s orbital can accommodate two electrons.

The next 2 electrons for magnesium go in the 2s orbital.

The next six electrons will go in the 2p orbital. The p orbital can hold up to six electrons.

We’ll put six in the 2p orbital and then put the remaining two electrons in the 3s.

Therefore, the Magnesium electron configuration will be 1s22s22p63s2.

PLS MARK ME AS BRAINLIEST

Ri1. Among these which is the example of compound?
a) sulphur
b) iron
c) ammonia
der

Answers

Answer:

Ammonia is a compound.

Explanation:

A compound is composed of two or more separate elements. Ammonia is NH3, which happens to be two different elements.

Other Questions

A chemist titrates 160.0mL of a 0.3403M aniline C6H5NH2 solution with 0.0501M HNO3 solution at 25°C . Calculate the pH at equivalence. The pKb of aniline is 4.87 . Round your answer to 2 decimal places. Note for advanced students: you may assume the total volume of the solution equals the initial volume plus the volume of HNO3 solution added.

g The electronic structure of which ONE of the following species cannot be adequately described by a single Lewis formula? (In other words, the electronic structure of which one can only be described by drawing two or more resonance structures?) A) C2H4 B) SO3 2– C) SO3 D) C3H8 E) HCN

Be sure to answer all parts. (a) How many atoms are directly bonded to the central atom in a trigonal planar molecule? i. two ii. three iii. six iv. eight (b) How many atoms are directly bonded to the central atom in a trigonal bipyramidal molecule? i. three ii. four iii. five iv. six (c) How many atoms are directly bonded to the central atom in an octahedral molecule? i. three ii. four iii. six iv. eight

How many neutrons does the isotope N-14 have?