1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Komok [63]
2 years ago
11

How many square centimeters are in an area of 8.50 inch^2

Chemistry
1 answer:
Paha777 [63]2 years ago
5 0

Explanation:

Given parameters:

  Dimension = 8.5in²

we are to convert from in² to cm²

 in² = in x in

 cm² = cm x cm

   1 in = 2.54cm

Using dimensional analysis;

   8.5in² x \frac{2.54cm}{1in}  x \frac{2.54cm}{1in}

        =  54.84cm²

We solved this problem using dimensional analysis where we multiplied the unit with 1.

learn more:

Conversion brainly.com/question/555814

#learnwithBrainly

You might be interested in
What is the single replacement reaction of Zinc + Lead(iv) Chloride
ExtremeBDS [4]

Answer:

2Zn+PbCl_4\rightarrow 2ZnCl_2+Pb

Explanation:

Hello there!

In this case, when referring to single replacement reactions, it is crucial for us to figure out the formula of the starting reactants; thus, we know zinc is Zn and lead (IV) chloride is PbCl₄. In such a way, the reaction proceeds as follows:

Zn+PbCl_4\rightarrow ZnCl_2+Pb

Which must be balanced as shown below:

2Zn+PbCl_4\rightarrow 2ZnCl_2+Pb

Regards!

4 0
2 years ago
What is the general trend for electronegativity
Kruka [31]

Answer:

finna look it up

Explanation:

7 0
2 years ago
Which statement holds true when the molar mass of hydrogen is 2.0 grams and that of helium is 4.0 grams?
ehidna [41]
I think you forgot to give the choices along with your question. I am answering the question based on my research and knowledge. "Helium effuses 0.71 times faster than hydrogen" is the statement that <span>holds true when the molar mass of hydrogen is 2.0 grams and that of helium is 4.0 grams. I hope the answer has helped you.</span>
7 0
3 years ago
Explain the three types of cumbusion ??​
Alik [6]

Answer:

Complete Combustion

One of the types of combustion is Complete Combustion. Complete combustion occurs in an unlimited supply of air, oxygen in particular. Also, complete combustion is also known as clean combustion. Here the hydrocarbon will burn out completely with the oxygen and leave only two byproducts, water, and carbon dioxide.

An example of this is when a candle burns. The heat from the wick will vaporize the wax which reacts with the oxygen in the air. The two products of the reaction are water and carbon dioxide. In an ideal situation all the wax burns up and complete combustion takes place

2] Incomplete Combustion

Incomplete combustion takes place when the air is in limited supply. And as opposed to complete combustion it is otherwise known as dirty combustion. Due to lack of oxygen, the fuel will not react completely. This, in turn, produces carbon monoxide and soot instead of carbon dioxide.

An example is burning of paper. It leaves behind ash (a form of soot) as a byproduct. In a complete combustion, the only products are water and carbon dioxide. Also, incomplete combustion produces less energy than complete combustion.

3] Rapid Combustion

Another type of combustion is Rapid Combustion. Rapid energy needs external heat energy for the reaction to occur. The combustion produces a large amount of heat and light energy and does so rapidly. The combustion will carry on as long as the fuel is available.

An example is when you light a candle. The heat energy is provided when we light the candle with a matchstick. And it will carry on till the wax burns out. Hence it is a rapid combustion

4] Spontaneous Combustion

As the name suggests the combustion occurs spontaneously. This means that it requires no external energy for the combustion to start. It happens due to self-heating. A substance with low-ignition temperatures gets heated and this heat is unable to escape.

The temperature rises above ignition point and in the presence of sufficient oxygen combustion will happen. The reaction of alkali metals with water is an example.

5] Explosive Combustion

Explosive Combustion happens when the reaction occurs very rapidly. The reaction occurs when something ignites to produce heat, light and sound energy, The simple way to describe is it to call it an explosion. Some classic examples are firecrackers or blowing up of dynamite.

6 0
2 years ago
Henri draws a wave that has a 4 cm distance between the midpoint and the trough. Geri draws a wave that has an 8 cm
OLga [1]

Answer:

I'm thinking Henri's wave and Geri's wave have the same amplitude and energy, but i'm not %100 sure

Explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • What method of heat transfer is used when the sun heats the earth?
    15·2 answers
  • What is the definition for exothermic and endothermic energy?
    5·1 answer
  • Estimate the volume of the football. Compare the football to the table tennis balls by dragging the football over the
    12·2 answers
  • Any ions with a charge (3+ ) has?
    15·1 answer
  • Water molecules are ____________ because the hydrogen atoms are positively charged on one end and the oxygen atoms are negativel
    11·1 answer
  • If the condition change such that there are 4 mil at 4 atm and at 270 K, what is the new volume?
    14·1 answer
  • Would a material with a higher specific heat cool faster than a material with a lower specific heat?
    11·2 answers
  • How many grams of KOH are required to prepare 500. mL of 0.450 KOH solution?
    5·1 answer
  • Zinc-64 undergoes beta decay as shown:
    12·1 answer
  • Chlorine has 7 valence electrons. Describe the type of bond that sodium would have
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!