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3 years ago

Wegener's claim was that the continents drifted from their original positions in Pangea

Chemistry

1 answer:

steposvetlana [31]3 years ago

7 0

Answer:

Imagine that you are a farmer in ancient Egypt. You must carefully plan around the flooding of the Nile in order to raise your crops.

Starting with planting (number 1), use the numbers 1 - 5 to place the following events in the correct order.

1 The floodwater recedes and you plant your crops.

The Nile begins to rise.

The Nile Valley is flooded again.

The hot season begins, and the Nile begins to dry up.

You harvest your crops

Explanation:

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What year will Aquarius be visible from Earth’s North Pole?

Minchanka [31]

Answer:

Aquarius beginning in the mid-3rd millennium. The north and south celestial poles are the two imaginary points in the sky where the Earth's ... In about 5,500 years, the pole will have moved near the position of the star ... The south celestial pole is visible only from the Southern Hemisphere.

Explanation:

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3 years ago

Areas in Mexico and Central America are known as

Tanzania [10]

They are known as “American Central”

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3 years ago

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Please write balanced equations for these reactions! WILL GIVE BRAINLIEST! 50 POINTS

Romashka [77]

Answer:

(NH4)2S(aq) + Pb(NO3)2(aq) --> 2NH4NO3 (aq) + PbS (s)

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3 years ago

Precipitation reactions always occur when two aqueous solutions are mixed (T/F)

Studentka2010 [4]

Answer: The given statement is false.

Explanation:

Precipitation reaction is defined as the chemical reaction in which two aqueous solution upon mixing together results in the formation of an insoluble solid.

For example, $NaCl(aq) + AgNO_{3} \rightarrow NaNO_{3}(aq) + AgCl(s)$

Here AgCl is present in solid state so, it is the precipitate.

But it is not necessarily true that two aqueous solutions will always result in the formation of a precipitate.

For example, $NaCl(aq) + KNO_{3}(aq) \rightarrow KCl(aq) + NaNO_{3}(aq)$

Hence, we can conclude that the statement precipitation reactions always occur when two aqueous solutions are mixed, is false.

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3 years ago

As pH increases, what happens to the hydrogen ion concentration?

levacccp [35]

Answer:

According to libretexts the answer would be B. decreases.

Explanation:

If the hydrogen concentration increases, the pH decreases, causing the solution to become more acidic. This happens when an acid is introduced. ... If the hydrogen concentration decreases, the pH increases, resulting in a solution that is less acidic and more basic

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3 years ago

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