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Bogdan [553]
3 years ago
5

Why did rutherford conclude from his gold foil experiment that an atom is mostly comprised of empty space?

Chemistry
1 answer:
Nady [450]3 years ago
6 0
'cause many alpha-particle goes without any deflection........
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What is produced when calcium reacts with fluorine in a synthesis reaction?
Thepotemich [5.8K]
C is the correct answer (CaF2) (sorry dont have subscript)

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How many moles are in a mass of 800.0 g of magnesium?
qaws [65]

Answer:

32.92 moles of Mg

Explanation:

To convert grams to moles (Or vice versa) of any chemical compound we need to use the molar mass of the substance (That is, how many grams weighs 1 mole of the chemical).

The magnesium, Mg, has a molar mass of 24.305g/mol. That means in 800.0g of Mg you have:

800.0g * (1mol / 24.305g) =

<h3>32.92 moles of Mg</h3>
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3 years ago
Explain what is respiration in your own words..
nadezda [96]

Answer:

Plants using glucose to make ATP molecules during the process of photosynthesis which results in the plant releasing oxygen.

This is cellular respiration. ↑

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2 years ago
240 g of water (specific heat = 4.186 J/g°C, initial temperature = 20°C) is mixed with an
ivolga24 [154]
The answer for this would be 69.6
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3 years ago
A compound has an empirical formula of AB and a molar mass of 90 g/mol. What is its
Lelu [443]

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A3B3

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Molecular formula = n x empirical formula

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