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AleksandrR [38]
4 years ago
14

The mass of a 2.0 centimeter sample of a substance is 3.2 grams. Calculate the density of the substance

Chemistry
2 answers:
Svetllana [295]4 years ago
8 0

Answer:

Density = Mass / Volume

= 3.2 /2 = 1.6 g / cm^3

Andreyy894 years ago
5 0

Answer: 1.6g/cm

Explanation: The equation for Density is D=m/v. Plug in 3.2g for mass and 2.0 cm.

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When agno3 was added to test tube d it reacted with cl to form agcl precipitate. Did this result in a shift to the right or the
AlekseyPX

Answer:

Reaction will move rightwards.

Explanation:

Hello there!

In this case, according to the proposed question, it turns out possible for us to  figure out the effect of the addition of silver nitrate, by using the following representative equation for the formation of the silver chloride precipitate:

Ag^+(aq)+Cl^-(aq)\rightleftharpoons AgCl(s)

Now, due to the addition of silver nitrate, we will be actually adding silver ions to the solution, which means that, in terms of the Le Ch atelier's principle, the reaction will shift to the right towards the formation of more silver chloride precipitate.

Best regards!

4 0
3 years ago
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
What are two observations that supported the theory of continental drift?
madam [21]

Answer: There are fossils found on either side of different continents and the continents look as though some are puzzle pieces that fit together.

4 0
4 years ago
What characteristic of an element’s atoms always determines the element’s identity?
Anna11 [10]

Answer:

hporntue dhdjehwgs r. rvegdyfuee

Explanation:

ehehrhrhrhrhrhrhr. dvdhdhrhrhehehr f fbdhehrgdgdhehd dbdh

3 0
3 years ago
Which of the following values is equal to 1 micrometer?
Crazy boy [7]
1 micrometer is equal to 10⁻⁶m so the correct answer is <span>A.) 0.000001 meter</span>
6 0
3 years ago
Read 2 more answers
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