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yarga [219]
3 years ago
11

Solutions of sodium sulfate and silver nitrate are mixed together.

Chemistry
1 answer:
Vera_Pavlovna [14]3 years ago
5 0

Answer:

<em>The correct option is a) Precipitate: silver sulfate </em>

<em> </em>

<em>Net Ionic: 2Ag+ +  SO42 →Ag2SO4</em>

Explanation:

When sodium sulfate reacts with silver nitrate, the following reaction occurs:

2AgNO3 + Na2SO4  → Ag2SO4 + 2NaNO3

The NaNO3 is easily soluble in water. However, silver ions form an insoluble solid with SO4. The Ag+ in this compound will be a cation having a positive charge. The SO4- will be an anion having an negative charge.

The table with solubility rules show that the sulfates of  Ag+, Ca+, Sr2+, Ba2+, Hg22+ and Pb2+ are insoluble.

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2.54 mL of ethanol to mol ethanol (Hint: the density of ethanol is 0.789<br> g/mL.)
Katarina [22]

0.04350179862

Explanation:

Make sure to check for sig figs though. Basically, you have 2.54 mL and you multiply that by the 0.789 g/mL and mL cancels out and you are left with 2.00406g. There are 46.06844 grams per mol of ethanol, so to cancel out grams we multiply by 1/46.06844. And then we are left with 0.04350179862 mol

7 0
3 years ago
What is the atomic number of carbon and the number of protons
nevsk [136]
A) if you have a period table handy it’s the number in the top left hand corner of the element
7 0
3 years ago
Claire is investigating potential and kinetic energy using a large ball. For her investigation, Claire will stand at the top of
uranmaximum [27]

The ball's potential energy will decrease, and its kinetic energy will increase.

Explanation:

The ball's potential energy will decrease down the slope and its kinetic energy will increase.

Kinetic energy is the energy due to the motion of a body.

 K. E = \frac{1}{2} m v²

 m is the mass of the ball

  v is the velocity of the ball.

Potential energy is the energy due to the motion of a body down slope.

It is expressed as:

   P.E = mgh

  m is the mass of ball

   g is the acceleration due to gravity of the body

  h is the height.

We can see as the body drops down the slope, the height diminishes and the velocity increases.

learn more:

Potential energy brainly.com/question/10770261

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3 0
3 years ago
Determine the number of grams of Carbon in 215 g of sucrose.
olya-2409 [2.1K]
<span>just find the percent mass of oxygen in sucrose again. and then multiply that by 50.00.</span>
6 0
3 years ago
A particular voltaic cell operates with the reaction: Zn(s)+Cl2(g)---&gt;Zn^2+(aq)+2Cl^-(aq) giving a cell potential of .853 V.
nadya68 [22]

Answer:

The amount of energy liberated will be 49.38 J.

Explanation:

The amount of energy liberated (gibbs free energy) can be calculated using the following equation:

ΔG° = -nFε

n: amount of moles of electrons transfered

F: Faraday's constant

ε: cell potential

20.0 g of Zn is equal to 0.30 mol.

Two electrons are transfered during the reaction.

Therefore, n = 2x0.30 ∴ n = 0.60

ΔG° = - 0.60 x 96.485 x 0.853

ΔG° = 49.38 J

3 0
3 years ago
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