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mina [271]
2 years ago
14

A stream that flows into two different rivers is part of two

Chemistry
1 answer:
larisa [96]2 years ago
8 0
Answer: A stream that flows into two different rivers is part of two tributaries

Please let me know if this helped you and is correct!
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3.
Andreyy89

Answer:

The answer to your question is the second option

Explanation:

Reaction

               Al₂(SO₄)₃  + KOH   ⇒   Al(OH)₃   +   K₂SO₄

Process

1.- Check if the reaction is already balanced

                Reactants             Elements             Products                                                                                

                      2                     Aluminum                   1

                      3                     Sulfur                          1

                     13                     Oxygen                      7

                      1                    Potassium                    2

                      1                     Hydrogen                   3

The reaction is unbalanced

2.- Balance the reaction

                 1Al₂(SO₄)₃  + 6KOH   ⇒  2Al(OH)₃   +  3K₂SO₄

               Reactants             Elements             Products                                                                                

                      2                     Aluminum                   2

                      3                     Sulfur                          3

                     18                     Oxygen                      18

                      6                    Potassium                    6

                      6                     Hydrogen                   6

Now the reaction is balanced. The coefficients are 1, 6, 2, 3.

5 0
3 years ago
Read 2 more answers
Which of the following best explains why Pangaea broke apart into the modern-day continents?
Oksana_A [137]

Answer:

C. Balanced forces caused a change in the motion of the plates.

Explanation:

Scientists believe that Pangea broke apart for the same reason that the plates are moving today. The movement is caused by the convection currents that roll over in the upper zone of the mantle. This movement in the mantle causes the plates to move slowly across the surface of the Earth.

6 0
3 years ago
Lithium reacts with bromine
ivanzaharov [21]
2Li + Br2 → 2LiBr
Lithium react with bromine to produce lithium bromide. The reaction proceeds at room temperature.
:)
6 0
3 years ago
How many grams of Fe can be produced when 6.50 g of Fe2O3 reacts?
AveGali [126]

Answer:

Mass of Fe produced = 4.468 g

Explanation:

Given data:

Mass of Fe produced = ?

Mass of Fe₂O₃ react = 6.50 g

Solution:

Chemical equation:

2Fe₂O₃        →     4Fe + 3O₂

Number of moles of Fe₂O₃ ;

Number of moles = mass/molar mass

Number of moles = 6.50 g/159.69 g/mol

Number of moles = 0.04 mol

Now we will compare the moles of iron and ironoxide.

                    Fe₂O₃             :             Fe

                         2                :              4

                       0.04             :             4/2×0.04 = 0.08 mol

Mass of iron produced:

Mass = number of moles × molar mass

Mass = 0.08 mol × 55.85 g/mol

Mass = 4.468 g

6 0
3 years ago
What does a red shift indicate about a galaxy?
Ad libitum [116K]
The only cause we know of that could shift the spectrum of a source toward longer wavelengths isthe source moving away from us. That's how we interpret the red shift when we see it, and that's where the whole idea of the expanding universe comes from. But ... just like gravity and the Earth going around the sun ... it can't be proved, so it's "only a theory".
6 0
3 years ago
Read 2 more answers
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