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Kay [80]
4 years ago
10

Which two substances could be produced in a combustion reaction?

Physics
1 answer:
OverLord2011 [107]4 years ago
6 0

Answer: B. Carbon dioxide and water

Explanation: Combustion simply refers to burning. A combustion reaction may thus be explained as a chemical process which involves the reaction between a substance and an oxidizer usually oxygen gas. The combustion reaction in most cases involves the reaction between hydrocarbons which are combustible compounds and oxygen gas. The reaction between the combustible compound and oxygen gas is then followed by the release of energy, with the product being carbondioxid and water. Below is an example of combustion reaction.

Combustion the Methane CH4.

Here, CH4 reacts with oxygen gas(O2) to produce carbondioxide and water.

CH4 + 2O2 ------> CO2 + 2H2O

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Describe the earth's rotation on it axis
Lisa [10]
<span>Earth's rotation is the rotation of the planet Earth around its own axis. The Earth rotates from the west towards east. As viewed from North Star or polestar Polaris, the Earth turns counter-clockwise.</span>
3 0
4 years ago
Read 2 more answers
If a small motor does 520 J of work to move a toy car 260 m, what force does the engine exert on the car?
ohaa [14]

Answer:

<h2>2 N</h2>

Explanation:

The force engine exert on the car can be found by using the formula

f =  \frac{w}{d}  \\

w is the workdone

d is the distance

From the question we have

f =  \frac{520}{260}  = 2 \\

We have the final answer as

<h3>2 N</h3>

Hope this helps you

4 0
3 years ago
Which is the best example of a scientific discovery resulting from new technology?
Anna11 [10]

third

Explanation:

i think so because finding structure of dna can help a lot for well being of human being

8 0
3 years ago
A plane flies from base camp to lake a, 205 km away in the direction 20.0° north of east. after dropping off supplies it flies
miss Akunina [59]
Draw a diagram to illustrate the problem as shown in the figure below.

Camp A  is 20° north of east from the camp, therefore
m∠CAB = 80°
where C => base camp.

Let d = distance from lake B to the base camp, at x° west of south.
Apply the Law of Cosines to determine d.
d² = 205² + 175² - 2*205*175*cos80⁰
     = 6.0191 x 10⁴
d = 245.338 km

Apply the Law of Sines to obtain
\frac{sin(x+30)}{205}= \frac{sin80^{o}}{245.338}\\ \\ sin(x+30)=( \frac{205}{245.338})sin80^{o}=   0.8229
x+30 = sin⁻¹ 0.8229 = 55.4°
x = 25.4°

Answer:
The distance from lake B to base camp is 243.3km (nearest tenth).
The direction is 25.4° west of south.

7 0
3 years ago
Metaphysics is the systematic inquiry into the nature of reality.<br> True<br> False
Andrews [41]

Metaphysics is the systematic inquiry into the nature of reality. This is a True statement.

<h3>What is metaphysics?</h3>

Metaphysics is defined as the branch of philosophy that deals with the nature of reality and how life started on earth.

The concept of metaphysics believes that what cannot be reached through objective studies of material reality can be studied.

There are three major categories of metaphysic that is being studied which include the following:

  • Ontology or general metaphysics,

  • Psychical or religious metaphysics, and

  • Physical metaphysics.

In conclusion, metaphysics is the systematic inquiry into the nature of reality because it questions reality outside of human sense of perception.

Learn more about philosophy here:

brainly.com/question/16999698

#SPJ1

3 0
1 year ago
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