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Alex777 [14]
3 years ago
7

ANSWER ASAP

Chemistry
1 answer:
ArbitrLikvidat [17]3 years ago
5 0

Answer:

c. 3.00 M HCl

Explanation:

From dilution formula

C1V1 = C2V2

C1=?, V1= 10.0ml, C= 1.5, V2= 20.0ml

Substitute and Simplify

C1×10= 1.5×20

C1= 3.00M

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Answer:

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Explanation:

Electrolysis of acidified water

Water is a poor conductor of electricity, but it does contain some hydrogen ions , H +, and hydroxide ions, OH -. These ions are formed when a small proportion of water molecules naturally dissociate . ... H + ions are attracted to the cathode , gain electrons and form hydrogen gas.

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2 years ago
Which order shows the materials having the highest to lowest temperature after 15 minutes of being under the lamps?
diamong [38]

Answer:

The answer to the question is

<h2>A. Air, Soil, Sand, Water</h2>

Explanation:

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4 years ago
Read 2 more answers
HELP PLEASE!!
AleksandrR [38]

Answer:

The mass of the object would be 491.55g/mL. Hope this helped! :)

Explanation:

D= 7.25g/mL                                                           M=D•V

V= 67.8mL

M=7.25g/mL•67.8mL

M= 491.55g

8 0
3 years ago
3.The simplest way of separating visible solid impurities that do not dissolve in water from water
stiv31 [10]

The simplest way of separating visible solid impurities that do not dissolve in water from water is by using a sieve (option A).

<h3>What is sieving?</h3>

Sieving is a act of passing substances through a sieve, which is a device with a mesh bottom to separate, in a granular material, larger particles from smaller ones, or to separate solid objects from a liquid.

Sieving is a physical method of separation widely used to separate substances that cannot dissolve in a liquid from that liquid.

Therefore, the simplest way of separating visible solid impurities that do not dissolve in water from water is by using a sieve.

Learn more about sieving at: brainly.com/question/2760394

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3 0
1 year ago
For the following reaction, 76.0 grams of barium chloride are allowed to react with 67.0 grams of potassium sulfate. barium chlo
Nataliya [291]

For the following reaction, 76.0 grams of barium chloride are allowed to react with 67.0 grams of potassium sulfate.

The reaction consumes _____ moles of barium chloride. The reaction produces _____ moles of barium sulfate and _____ moles of potassium chloride.

Answer: a) The reaction consumes 0.365 moles of barium chloride.

b) The reaction produces 0.365 moles of barium sulfate and 0.730 moles of potassium chloride.

Explanation:

To calculate the moles :

\text{Moles of solute}=\frac{\text{given mass}}{\text{Molar Mass}}    

\text{Moles of barium chloride}=\frac{76.0}{208g/mol}=0.365moles

\text{Moles of potassium sulphate}=\frac{67.0}{174g/mol}=0.385moles

BaCl_2(aq)+K_2SO_4(aq)\rightarrow BaSO_4(s)+2KCl(aq)

According to stoichiometry :

1 mole of BaCl_2 require 1 mole of K_2SO_4

Thus 0.365 moles of BaCl_2 will require=\frac{1}{1}\times 0.365=0.365moles  of K_2SO_4

Thus BaCl_2 is the limiting reagent as it limits the formation of product and K_2SO_4 is the excess reagent.

As 1 moles of BaCl_2 give = 1 moles of BaSO_4

Thus 0.365 moles of BaCl_2 give =\frac{1}{1}\times 0.365=0.365moles  of BaSO_4

As 1 moles of BaCl_2 give = 2 moles of KCl

Thus 0.365 moles of BaCl_2 give =\frac{2}{1}\times 0.365=0.730moles  of KCl

Thus the reaction consumes 0.365 moles of barium chloride. The reaction produces 0.365 moles of barium sulfate and 0.730 moles of potassium chloride.

6 0
3 years ago
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