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aivan3 [116]
3 years ago
10

A salt forms in the reaction of barium with chlorine. What is the most likely formula unit of this salt?

Chemistry
2 answers:
Scrat [10]3 years ago
6 0
The answer to this question would be: BaCl 2
Barium is an alkali metal with 56 atomic number. Barium located in the group 2 of the periodic table because it has 2 valence electrons. Chlorine is a nonmetal that has 1 valence electron. When react, it would need 2 chlorine for each barium as the valence electron of barium is twice the chlorine. 
ExtremeBDS [4]3 years ago
5 0

Answer:

BaCl 2

Explanation:

The other answer explains it pretty well! I am just confirming that this is correct! :) Good luck!

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For a reaction system at equilibrium, LeChatelier's principle can be used to predict the A) activation energy for the system B)
SCORPION-xisa [38]

For a reaction system at equilibrium, LeChatelier's principle can be used to predict the "effect of a stress on the system".

<u>Option: C</u>

<u>Explanation:</u>

Le Chatelier's theory can be implemented to forecast a system's behavior due to variations in pressure, temperature, or concentration that will lead in predictable and contested variations in the system adjustments to establish a new state of equilibrium. This means that adding heat to a process would favor the endothermic path of a reaction, because this decreases the amount of heat generated in the system.

Here shift in equilibrium take place when volume increase, the total pressure decreases, which have potential to reverse the reaction, while on increasing pressure of system, the total volume decreases of the gaseous system, which can shift an equilibrium in the direction of the fewer molecules.

6 0
3 years ago
What are four physical properties of aluminum foil?
Gemiola [76]
1) solid
2) ductile
3) malleable
4) silver in color

Malleable means that it is "flexible" or can be permanently reshaped easily.  Ductile means that it can be drawn out into a wire.  Aluminum foil's state of matter is solid, and it appears in a silver color.
6 0
3 years ago
Read 2 more answers
A graduated cylinder is filled with 50.7 mL of water. If a 10.0 g piece of zinc metal is added to the water, and the volume rise
Triss [41]

Answer:

<h3>The answer is 7.14 g/mL</h3>

Explanation:

The density of a substance can be found by using the formula

density =  \frac{mass}{volume} \\

From the question

mass = 10 g

volume = final volume of water - initial volume of water

volume = 52.1 - 50.7 = 1.4 mL

We have

density =  \frac{10}{1.4}  \\  = 7.142857...

We have the final answer as

<h3>7.14 g/mL</h3>

Hope this helps you

5 0
3 years ago
How many diatomic molecules are there? List all of them
wariber [46]

Answer: Br2 I2 N2 Cl2 H2 O2 F2 (7 elements)

Explanation:

How to remeber this: Hal-NOH or BrINCIHOF

halogens Nitrogen, Oxygen, and Hydrogen.

7 0
3 years ago
The low-grade iron ore taconite, which contains Fe3O4, is concentrated and made into pellets for processing. If one ton of tacon
xenn [34]

<u>Answer:</u> The percent composition of Fe_3O_4 in taconite is 37.6 %.

<u>Explanation:</u>

We are given:

Mass of taconite pellets = 1 ton = 907185 g      (Conversion factor: 1 ton = 907185 g)

Mass of iron produced = 545 lb = 247212 g    (Conversion factor:  1 lb = 453.6 g )

We know that:

Molar mass of iron = 55.85 g/mol

Molar mass of Fe_3O_4 = 231.53 g/mol

1 mole of Fe_3O_4 contains 3 moles of iron atom and 4 moles of oxygen atom

(3 × 55.85) = 167.55 g of iron is produced from 231.53 grams of Fe_3O_4

So, 247212 grams of iron will be produced from = \frac{231.53}{167.55}\times 247212=341611.43g of Fe_3O_4

To calculate the percentage of Fe_3O_4 in taconite, we use the equation:

\%\text{ composition of }Fe_3O_4=\frac{\text{Mass of }Fe_3O_4}{\text{Mass of taconite}}\times 100

Mass of taconite = 907185 g

Mass of Fe_3O_4 = 341611.43 g

Putting values in above equation, we get:

\%\text{ composition of }Fe_3O_4=\frac{341611.43g}{907185g}\times 100=37.6\%

Hence, the percent composition of Fe_3O_4 in taconite is 37.6 %.

8 0
3 years ago
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