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Alenkinab [10]
3 years ago
13

ANSWER ASAP! How does a combustion reaction form?

Chemistry
2 answers:
Harlamova29_29 [7]3 years ago
4 0
A combustion reaction is when a fuel, usually a hydrocarbon, reacts with excess oxygen to form carbon dioxide gas and water vapor.
shutvik [7]3 years ago
4 0
A combustion reaction is a reaction in which a substance reacts with oxygen gas, releasing energy in the form of light and heat. Combustion reactions must involve O2 as one reactant. The combustion of hydrogen gas produces water vapor.
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Help me pleaseeee, ty if you doo:))
allochka39001 [22]

Answer:

9 is the correct answer

4 0
3 years ago
How does matter change phase?
crimeas [40]

Answer:

Phase changes typically occur when the temperature or pressure of a system is altered. When temperature or pressure increases, molecules interact more with each other. When pressure increases or temperature decreases, it's easier for atoms and molecules to settle into a more rigid structure.

Explanation:

Hope it helps UvU

7 0
3 years ago
The density of a pure substance is its mass per unit volume. The density of cresol has been measured to be 1024 g/L . Calculate
Ierofanga [76]

Answer: The mass of 405 ml of cresol is 415 grams

Explanation:

Density is defined as the mass contained per unit volume.

Density=\frac{mass}{volume}

Given : Density of cresol = 1024 g/L

Volume of cresol = 405 ml = 0.405 L   ( 1L=1000ml)

Putting in the values we get:

1024g/L=\frac{mass}{0.405L}

mass=1024g/L\times 0.405L=415g

Thus mass of 405 ml of cresol is 415 grams

3 0
3 years ago
What are the chemical properties of kevlar
Gnesinka [82]

Answer:

<h2>Kevlar has unique properties such as:</h2><h2><em>High tensile strength</em>, <em>high toughness</em>, and <em>chemical stability </em>at high temperatures<em> </em>in polyamides (polymer with repeating unit links by amide bonds.) </h2><h3>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~</h3>

Δ What is Kelvar? Δ

~ Kevlar is a heat-resistant and strong synthetic fiber

~ Kevlar is widely used as a friction material in the automotive industry, and a combustion protection material in the aerospace industry. <em>~Looked that up!</em>

<h3>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~</h3>

<em>Hope I helped!!!</em>

<em>GL :)</em>

5 0
4 years ago
What is an ion and how does it form? What are the two types of ions
vladimir2022 [97]

Answer:

Ions form when an atom gains or loses electrons in order to find a more stable configuration.There are two types of ions cations and anions

Explanation:

hope this helps if not let me know have a blessed day

4 0
2 years ago
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