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NikAS [45]
4 years ago
15

Why does it help to keep the distillation head warm?

Chemistry
1 answer:
aleksley [76]4 years ago
3 0
Distillation is the process of extracting all of the substances from a liquid solution by condensation or evaporation. The device used in this process of distillation is called distillation head. The liquid is heated and components with different boiling points are forced into the gas phase.The distillation head should be kept warm in order this process to last long time enough.
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Which construction can you use to prove the Pythagorean Theorem based on similarity of triangles?
Vinvika [58]
<span>To prove the Pythagorean Theorem based on similarity of triangles, you can always use the 2nd construction.

The 2nd construction is achieved by drawing a perpendicular line joining between the right angle of the triangle and the hypothesis (as shown in the attachment).

Note: The Pythagorean Theorm is stated as follows:
(length of hypotenuse)^2  = (length of side1)^2 + (length of side2)^2</span>

7 0
4 years ago
What is radioactive decay?
swat32

Answer:

Radioactive decay is the process by which an unstable atomic nucleus loses energy by radiation. A material containing unstable nuclei is considered radioactive. Three of the most common types of decay are alpha decay, beta decay, and gamma decay, all of which involve emitting one or more particles or photons.

Explanation:

7 0
3 years ago
What important thing to understand about fitness?
Oksana_A [137]

Answer:

There are many benefits to being fit.

Explanation:

Fitness isn't just about the physical part but also the mental wellbeing. For example the physical involves exercising, not just to lose weight or look more beautiful (remember everyone has unique looks) but to live longer, reduce the rick of diseases such as heart diseases and to enhance our bodies. Whereas the mental has to do with the brain, how you train the brain e.g logic puzzles, riddles and so on.

3 0
3 years ago
A battery can provide a current of 4.60 A at 3.40 V for 2.50 hr. How much energy (in kJ) is produced? 1st attempt kJ Energy
Lunna [17]

Answer:

The energy produced equals 140.760 kJ

Explanation:

The relation between power, current and voltage is

Power=Current\times Voltage

Applying the given values in the relation above we get

Power=4.60\times 3.40=15.64W

Now Since Power=\frac{Energy}{Time}\\\\Energy=Power\times Time

Again applying the calculated values we get

Energy=15.64\times 2.50\times 3600=140760Joules=140.76kJ

4 0
4 years ago
nter your answer in the provided box. Nitric acid (HNO3) is used in the production of fertilizer, dyes, drugs, and explosives. C
OLga [1]

Answer:

Explanation:

pH = - log[ H⁺ ]

[ H⁺ ] = .39

pH = - log .39

= - log (39 x 10⁻²)

= 2 - log 39

= 2 - 1.59

=  .4 1

8 0
3 years ago
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