1. compare and differentiate weathering erosion.

2 answers:

7 0

Weathering is wearing away the surface of the rock, an example, wind and water cause small pieces of rock to break off at the side of the mountain. EROSION happens when rocks and sediments are picked up and moved to a different area, an example is water getting into cracks then when it freezes it expands causing the area to crack apart

lesantik [10]3 years ago

6 0

Explanation:

weathering is the act of break down of big rocks by sun

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If copper carbonate system is heated for too short a time, what will you notice for mass percent of copper be too large or too s

sammy [17]

Answer:

The mass percent of copper as element is the same.

Explanation:

First of all we need the reaction that is presented below:

$CuCO_{3 (s)} +Heat$ → $CuO_{(s)} + CO_{2 (g)}$

The mass percent of copper (Cu) as element is the same because of during the reaction the element only transform its nature from copper carbonate ( $CuCO_{3 (s)}$ ) to copper oxide ( $CuO_{(s)}$ ), the latter is a solid and will remain in the system.

On the other hand, you will note that the global percentage mass will be small because of the reaction produce ( $CO_{2 (g)}$ ) that is a gas and this one will escape for the system.