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LenaWriter [7]
3 years ago
15

Many scientists, including Joseph Priestly, hypothesized that fuels lost mass as they burned due to the loss of a substance call

ed phlogiston. Since phlogiston was missing, these fuels could not undergo any further combustion. Which of the results in the experiment above refute this hypothesis?
a. Ethanol
b. Charcoal
c. Wood
d. Mercury
Chemistry
1 answer:
DanielleElmas [232]3 years ago
6 0
<h2>D this is a lot of hour to found but its ok thank you for sharing your question i hope this help</h2>

<h3>Carry on learning:)</h3>
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Which statement describes why sodium reacts more vigorously than magnesium to hydrochloric acid? Refer to the periodic table. Ci
lions [1.4K]

Sodium has a lower ionization energy than magnesium describes why sodium reacts vigorously than magnesium chloride.

<h3>Why is sodium more reactive than magnesium?</h3>
  • Sodium is more reactive than magnesium because it has the ability to easily lose electron, hence have lower ionization energy.
  • Sodium belong to group one on the periodic table and they are called akali metal while magnesium belong to group two on the periodic table and they are called alkali Earth metal.

  • Sodium and magnesium belong to the in the 3rd period. Iin the outermost energy level sodium has one electron but magnesium has 2 electrons. Therefore, there is more attraction abetween the nucleus and electrons in magnesium than that of sodium.

Therefore, sodium is more reactive than magnesium chloride because of lower ionization energy.

For more details on sodium reactivity, check the link below.

brainly.com/question/6837593

8 0
2 years ago
Read 2 more answers
How reactive is an atom of Sodium(Na) and why?
s344n2d4d5 [400]
3rd one:
it is very reactive because it does not have a full Valence shell.

this is because it's in group 1 so it has one electron in its outer shell, and it wants to have a full outer shell ( which it can gain by losing the electron in a reaction).

Hope this helps :)
5 0
2 years ago
1. How many moles of hydrogen are needed to completely react with two moles of nitrogen?
Arlecino [84]

N2 + 3H2  -->  2NH3

Answer: 6 moles of hydrogen are needed to react with two moles of nitrogen.

Explanation:

4 0
2 years ago
The smallest part of a molecule is called
yarga [219]

Answer:

D atom

Explanation:

The smallest particle of a substance that retains the chemical and physical properties of the substance and is composed of two or more atoms

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2 years ago
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add

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