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aksik [14]
3 years ago
9

Help me cuz it's due in 5 minutes!!!! ​

Chemistry
1 answer:
Katyanochek1 [597]3 years ago
6 0
115 is the correct answers for your questions
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What allowed Mendeleev to make predictions of undiscovered elements
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Answer:

he predicted the properties from known elements above and belws the unknown in the same group

Explanation:

What allowed Mendeleev to make predictions of undiscovered elements

He realized that an element on this table with one known element above it and one known  element below it had to have properties between the two known elements

How did Mendeleev predict gallium and germanium?

Based on gaps in the periodic table Mendeleev deduced that in these gaps belonged elements yet to be discovered. Based on other elements below and above in the same group he predicted the existence of eka-aluminum, eka-boron, and eka-silicon, later to be named gallium (Ga), scandium (Sc), and germanium (Ge).

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A car stopped at the top of the hill

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It's potenial energy because, the car could go down the hill and create kinetic energy. Hope this helps! Please give me brainly it is correct!

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answer last one “How many moles of hydrogen are consumed to produce 100 g ammonia” ? explanation and answer required then u get
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The answer is 17.03052. We assume you are converting between grams Ammonia and mole.

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Change for a liquid state to a solid state is known as what phase change?
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B. To change from a liquid state to a solid state is called Freezing

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