All categories

2 years ago

Heating chemicals is defined by the process of combustion.

1 answer:

8 0

The statement "Heating chemicals is defined by the process of combustion" is false, combustion is a chemical reaction in which fuels combine with oxygen from the air to release heat.

<h3>What is combustion?</h3>

It is a rapid oxidation process of certain fuel elements, that is, consisting mainly of hydrogen, carbon and sometimes sulfur.

All combustion processes require the participation of an oxidant, mainly oxygen from the air.

It is based on the exothermic chemical reaction of a substance or mixture of substances called fuel.

Therefore, we can conclude that a combustion process is a type of exothermic reaction that causes a rapid oxidation process therefore the statement "Heating chemicals is defined by the process of combustion" is false.

Learn more about the process of combustion here: brainly.com/question/17580726

You might be interested in

Sofie claims to be a tasting expert. To test her abilities, someone bakes Sofie a cake using 3 of the following

Otrada [13]

Answer:

1/20

Explanation:

8 0

2 years ago

If 50. 0 g of ch₃oh (mm = 32. 04 g/mol) are added to a 500. 0 ml volumetric flask, and water is added to fill the flask, what is

Elza [17]

Taking into account the definition of molarity, the concentration of CH₃OH in the solution is 3.12 $\frac{moles}{liters}$ .

<h3>Definition of molarity</h3>

Molar concentration or molarity is a measure of the concentration of a solute in a solution and indicates the number of moles of solute that are dissolved in a given volume.

The molarity of a solution is calculated by dividing the moles of solute by the volume of the solution:

$Molarity=\frac{number of moles}{volume}$

Molarity is expressed in units $\frac{moles}{liters}$ .

<h3>Concentration of CH₃OH</h3>

In this case, you know:

number of moles= 50 g× $\frac{1 mole}{32.04 g}$ = 1.56 moles, being 32.04 $\frac{g}{mole}$ the molar mass of CH₃OH
volume= 500 mL= 0.5 L (being 1000 mL= 1 L)

Replacing in the definition of molarity:

$Molarity=\frac{1.56 moles}{0.500 L}$

Solving:

<u><em>Molarity= 3.12 </em></u> $\frac{moles}{liters}$

Finally, the concentration of CH₃OH in the solution is 3.12 $\frac{moles}{liters}$ .

Learn more about molarity:

<u>brainly.com/question/9324116</u>

<u>brainly.com/question/10608366</u>

<u>brainly.com/question/7429224</u>

8 0

2 years ago

Use finite differences to determine the degree of the polynomial

dybincka [34]

Answer:

Step-by-step explanation:

4 0

2 years ago

An ice skater is spinning about a vertical axis with arms fully extended. If the arms are pulled in closer to the body, in which

12345 [234]

It should be noted that the angular momentum remain constant and kinetic energy of the skater increases.

<h3>What is Angular momentum?</h3>

Angular momentum can be regarded as the property of any rotating object given by moment of inertia times angular velocity, since No net torque is done on the object, then angular momentum is constant.

Kinetic Energy which is also the energy of motion in the Ice skater will increase since their is a pull.

Learn more about angular velocity and energy at:

brainly.com/question/26889176

8 0

2 years ago

A piece of equipment costs $30,000, and is expected to generate $8,500 of annual cash revenues and $1,500 of annual cash expense

djverab [1.8K]

Answer:

C. 4.29 years

Explanation:

The computation of the payback period is shown below:

Payback period = Initial investment of the equipment ÷ Cash flows

where,

Initial investment = $30,000

And, the cash flows is

= $8,500 - $1,500

= $7,000

So the payback period is

= $30,000 ÷ $7,000

= 4.29 years

By dividing the initial investment by the cash flows we can get the payback period and the same is applied above.

please mark me brainliest!!

6 0

2 years ago