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3 years ago

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Chemistry

1 answer:

boyakko [2]3 years ago

6 0

True. Our earth Is getting hotter due to global warming.

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Calculate the mass of 0.5dm3 of a 2g/dm3 solution of silver nitrate

cupoosta [38]

Answer:

5.6

Explanation:

Because of the gravity of the earth

6 0

3 years ago

Write the reaction for the weak base co32- in water

Gekata [30.6K]

The weak base carbonate reacts with the water forming bicarbonate and the hydroxide ion.

The weak bases are given as the compounds that have the inability to get completely dissociated in water.

The carbonate is given as the weak base, as in water it remains constituted in the form of a bond with oxygen.

The reaction of water with the carbonate ion is given as:

$\rm CO_3^{2-}\;+\;H_2O\;\rightleftharpoons HCO_3^-\;+\;OH^-$

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3 0

2 years ago

PLEASE HELP WILL GIVE BRAINLIEST

nevsk [136]

Answer:

16. Option c.

Explanation:

The reaction is:

C₈H₁₈ + O₂ → CO₂ + H₂O

Let's count, we have 8 C, 18 H and 2 O in reactant side

We have 1 C, 2 H and 3 O in product side

In order to balance the C, we add 8 to CO₂ and to balance the H, we add a 9 to H₂O

Now we have 8 C on both sides and 18 H On both sides. Finally we have 25 O on product side.

C₈H₁₈ + O₂ → 8CO₂ + 9H₂O

To balance the O in product side we must add 25/2, but as it is a rational number, we must multiply x2 to get an integer number (x2 in all the stoichiometry). The balanced reaction is :

2C₈H₁₈ + 25O₂ → 16CO₂ + 18H₂O

with 16 C, 36 H and 50 O, on both sides

7 0

3 years ago

Read 2 more answers

Consider the following reaction: COCl2(g) ⇌ CO(g) + Cl2(g) A reaction mixture initially contains 1.6 M COCl2. Determine the equi

professor190 [17]

Answer:

The equilibrium concentration of CO is 0.0361 M

Explanation:

Step 1: Data given

Kc = 8.33 *10^-4

Molarity of COCl2 = 1.6 M

Step 2: The balanced equation:

COCl2(g) ⇌ CO(g) + Cl2(g)

Step 3: Calculate final concentrations

The initial concentration of COCl2 = 1.6M

The initial concentration of CO and Cl2 = 0M

There will react xM of COCl2

Since the mole ratio is 1:1

The final concentration of CO and Cl2 will be X M

The final concentration of COCl2 will be (1.6 -X)M

Step 4: Define Kc

Kc= [CO] *[Cl2] / [COCl2] = 8.33*10^-4

Kc = X*X / 1.6-X = 8.33 * 10^-4

8.33 * 10^-4 = X² /(1.6-X)

8.33 * 10^-4 *(1.6 -X) = X²

0.0013328 - 8.33*10^-4 X = X²

X² + 8.33*10^-4 X - 0.0013328= 0

X = 0.0361 M = [CO] = [Cl2]

[COCl2] = 1.6 - 0.0361 = 1.5639 M

To control this we can calculate the Kc

(0.0361*0.0361)/1.5639 = 0.000833

5 0

3 years ago

Which part of the atom cannot have its location accurately determined and is modeled by a cloud around the center of the atom? A

Tju [1.3M]

Answer:

Electron

Explanation:

The answer would be the electron because it is constantly moving so its location cannot be accurately determined

3 0

3 years ago

Read 2 more answers