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nekit [7.7K]
3 years ago
9

Roger poured water over a pile of sand. Some of the sand washed away. This process is similar to which of the following?AnswerHi

de AThe eruption of a volcanoHide BThe erosion of the walls of a canyonHide CThe uplifting of mountain rangesHide DThe forming of dunes or mounds in a desert
Chemistry
1 answer:
BARSIC [14]3 years ago
3 0
B. The erosion of the walls of a canyon hide. When wind, water,etc washes away sand dirt gravel etc it is an example of erosion. the walls of a canyon hide can erode rather quickly as well.


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The SI unit of time in seconds
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Which of the following is NOT true about equilibrium?
podryga [215]

Answer:

c

Explanation:

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Given the unbalanced equation: ___Al2(SO4)3+___Ca(OH)2—>___Al(OH)3+__CaSO4
nasty-shy [4]

Answer:

The answer to your question is letter B. 9

Explanation:

Unbalanced reaction

                     Al₂(SO₄)₃  +  Ca(OH)₂   ⇒    Al(OH)₃   +   CaSO₄

                     Reactants             Elements      Products

                          2                          Al                     1

                          3                           S                     1

                         14                           O                    7

                          1                           Ca                    1

                          2                           H                     3

Balanced reaction

                    Al₂(SO₄)₃  + 3Ca(OH)₂   ⇒   2Al(OH)₃   +   3CaSO₄

                     Reactants             Elements      Products

                          2                          Al                    2

                          3                           S                    3

                         18                           O                  18

                          3                           Ca                  3

                          6                            H                    6

The sum of the coefficients is 1 + 3+ 2+ 3 = 9

8 0
3 years ago
If an acid or alkali is diluted by a factor of 10, what effect will this have on its pH?
Alisiya [41]

Answer: When an acidic solution is diluted with water the concentration of H + ions decreases and the pH of the solution increases towards 7.

Explanation:

5 0
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