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Nana76 [90]
3 years ago
8

1. Antarctica is a frozen land, so cold and icy that no trees can grow there. Yet scientists have discovered fossils(remains pre

served in rock) of ancient trees in Antarctica
What do you think this means
Chemistry
1 answer:
algol [13]3 years ago
8 0

Answer:

This means that Antarctica once had a warmer climate.

Explanation:

Trees usually grow in warm climates, and Antarctica has little to no plant life.

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Study the graph in Figure 6.32 and answer to these questions. (see attached image)
Dimas [21]

Hey there :)

We can see that the solubility of salt increases with increasing temperature. This happens with most substances.

To find out the maximum mass of copper sulfate that can be dissolved in water at these temperatures, just interpret the graph.

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<u>1)</u>

a: <u>0 °C - 14 g of copper sulfate/100 g of water</u>

b: <u>50 °C - 34 g of copper sulfate/100 g of water</u>

c: <u>90 °C - 66 g of copper sulfate/100 g of </u><u>water</u>

<u>2)</u> From the graph, we can infer that temperature affects the solubility of the salt.

<em>Answered</em><em> </em><em>by</em><em> </em><em>Benjemin360</em><em> </em>:)

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