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ale4655 [162]
3 years ago
14

Explain what is meant by Pleistocene ice age

Chemistry
1 answer:
makkiz [27]3 years ago
7 0

By Pleistocene ice age is meant the glacial periods that appeared in the Pleistocene. The Pleistocene is the first epoch of the Quaternary. It is an epoch when there was a so called ''ice age'' on the Earth, or rather a glacial period. During this ice age the planet had much lower temperatures on a global scale. The climate was also much drier. Lot of ocean water was frozen in the ice sheets that were stretching deep into the North American and Eurasian continents, which resulted in much lower sea levels that today as well. The places further north than 40 degrees of latitude were almost exclusively covered with ice, so life was almost impossible apart from some coastline places.

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Why is melting point considered a physical property
miskamm [114]

Answer:

Because you can physically see the object melting when it comes to the melting point. The objects texture, color, temperature, shape, and state of matter (solid, liquid, gas) are possibly changing.

6 0
3 years ago
One example of a physical change is
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2 years ago
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The reaction between nitric oxide and oxygen is described by the following chemical equation: Suppose a two-step mechanism is pr
muminat

Answer:

2NO(g) + O2(g) ---> 2NO2(g)

Explanation:

The mechanism for this reaction involves two elementary reactions in which both are bimolecular as shown below;

NO(g) +O2(g) ----> NO2(g) + O(g)

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Hence overall balanced reaction equation;

2NO(g) + O2(g) ---> 2NO2(g)

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3 years ago
500.0 mL of a gas is collected at 745.0 mm Hg. what what will the volume be at standard pressure
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