3 years ago

What is the definition of periodic trend

1 answer:

4 0

Answer:

That periodic trends are specific patterns that are present in the periodic table that illustrate different aspects of a certain element, including its size and its electronic properties.

Explanation:

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Which method preserves an image of a leaf?.

Sav [38]

Answer:

Tree sap flows over the leaf and preserves it.

Explanation:

Amber would preserve the image.

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3 years ago

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Write a hypothesis to predict how reaction rate will change when temperature changes. For example: “ If i heat a reaction, then

cricket20 [7]

If I heat a reaction then the rate will increase because the higher the temperature the faster the reaction.

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3 years ago

I 13 Suggest why this group is called Group 8.

yarga [219]

Answer:

because it's in group 8

Explanation:

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Carbon is a synthetic element and is not normally found in nature.<br><br> True or False

Inessa05 [86]

False. Carbon is definitely one of the 92 naturally occurring elements within the periodic table.

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3 years ago

An object has a mass of 20g and occupies a volume of 40 ml. Calculate the Density of the object.

Vsevolod [243]

Answer:

<h3>The answer is 0.5 g/mL</h3>

Explanation:

The density of a substance can be found by using the formula

$density = \frac{mass}{volume} \\$

From the question we have

$density = \frac{20}{40} \\$

We have the final answer as

Hope this helps you

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3 years ago