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3 years ago

9

Sometimes rock formations form because pieces of the rock has been crumbled and been blown/washed away. This is and example of w

hat?

2 answers:

butalik [34]3 years ago

6 0

Hi. I think it's erosion.

liubo4ka [24]3 years ago

5 0

Mechancial weathering i think

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What is the viscosity and flammability of refinery gas?

Liono4ka [1.6K]

Hydrocarbons

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3 years ago

Why does the atmosphere have holes in it? A. Pollution B. Fuel from Cars/Machines

a_sh-v [17]

Answer:

the answer is d .

Explanation:

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2 years ago

Which object is a good conductor of heat and electricity?

Alex

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C

Explanation:

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2 years ago

How many electrons are in an ion of calcium (Ca2+)?<br> A. 2<br> B. 18<br> C. 0<br> D. 22

Elanso [62]

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2 years ago

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

2 years ago