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Lisa [10]
3 years ago
15

What are the requirements for combustion of a candle?

Chemistry
1 answer:
cestrela7 [59]3 years ago
7 0
For a candle to burn, it requires a spark, which provides the activation energy for the oxidation reaction of the hydrocarbon making the candle.
It also requires oxygen to facilitate the oxidation of the hydrocarbon.
Therefore the two main requirements of combustion of a candle are oxygen and a spark (or an initial flame)
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What is a compound in chemistry
kykrilka [37]
Two types of chemical bonds common in compounds are covalent bonds and ionic bonds. The elements in any compound are always present in fixed ratios. Example 1: Pure water is a compound made from two elements - hydrogen<span> and </span>oxygen<span>.</span>
5 0
3 years ago
The number of nitrogen atoms in one mole of nitrogen gas are...
9966 [12]

Explanation:

The number of nitrogen atoms in one mole of nitrogen gas are <em><u>6.02214179×1023 nitrogen </u></em><em><u>atoms</u></em><em><u>.</u></em><em><u> </u></em>

<em>Hope this helps... </em>

3 0
3 years ago
What is the transition element which despite its strength (rigidity), it is characterized by being ductile, and by its high resi
uranmaximum [27]

Titanium is ductile and has high resistance for heat despite its strength.

Titanium (Ti), is a  Group 4b chemical transition  element, it has a silvery gray appearance. Its characteristics are as follows

  • known as the strongest metal with high rigidity
  • low-corrosion resistance
  • low density
  • heat resistance.

Because of these features, Titanium is widely used in building  aircraft, missiles, and ships and also in the production  of  prosthetics.

5 0
3 years ago
A sample of a substance has a mass of 4.2 grams and a volume of 6 milliliters. The density of this substance is
Tanzania [10]

Hello!

Mass =4.2 g

Volume =6 mL

Therefore:

Density = mass / volume

Density = 4.2 / 6

Density = 0.7 g/mL


Hope that helps!

4 0
3 years ago
Read 2 more answers
Determine the mass of the H2CO3 produced.
FrozenT [24]

Answer:

62.03 g/mol

Explanation:

7 0
3 years ago
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