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Ugo [173]
3 years ago
5

If she suddenly dropped the books, this would increase their energy. If she instead decided to hold the books over her head, thi

s would increase their energy.
Chemistry
1 answer:
Anna35 [415]3 years ago
7 0

Answer:

the answer is is is true

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Jane is on a merry-go-round that is moving at a constant speed. Her velocity is also constant.
tester [92]

the correct answer is False.

6 0
3 years ago
what is the heat of a reaction, in joules, with a total reaction mixture volume of 67.9 ml if the reaction causes a temperature
Ahat [919]

The heat of reaction is  1.8 KJ. A calorimeter is a device used in calorimetry, a procedure for calculating heat capacity and measuring the heat of chemical processes or other physical changes.

<h3>How to calculate calorimeter?</h3>
  • A calorimeter is a device used in calorimetry, a procedure for calculating heat capacity and measuring the heat of chemical processes or other physical changes.
  • Among the most popular kinds are differential scanning calorimeters, isothermal micro calorimeters, titration calorimeters, and accelerated rate calorimeters.
  • Calorimeter, a tool for estimating a material's heat capacity and measuring the heat produced during a mechanical, electrical, or chemical reaction. bomb thermometer.

Volume of water = 67.9 mL

Since the density of water is 1.00 g/mL

Density = mass/volume

Mass of water = Density × volume

Mass of water =  1 g/mL × 67.9 mL

Mass of water = 67.9g or 0.0679 Kg

Temperature change =  6.5 oC

Specific heat capacity of water= 4.184 J/Kg

From;

H = mcθ

m = mass of water

c = heat capacity of water

θ = temperature rise

Substituting values;

H = 0.0679 Kg × 4.184 J/Kg × 6.5 oC

H = 1.8 KJ

To learn more about calorimeter refer to:

brainly.com/question/1407669

#SPJ4

3 0
1 year ago
How many centimeters are in 15 3/8 inches.
dalvyx [7]

Answer:

39.0525 Cm

Explanation:

3 0
4 years ago
Read 2 more answers
carbon tetrachloride has been widely used in the cleaning industry in fire extinguishers and refrigerated. construct an explanat
Lady bird [3.3K]

Answer:

The dense vapours of carbon tetrachloride forms a protective layer on the burning objects and avoids the oxygen or air to come in contact with the fire from the burning objects and provides incombustible vapours.

Explanation:

Hope This Helps

Happy Hoildays

~Zero~

8 0
3 years ago
When (R)-2-chloro-3-methylbutane is treated with potassium tert-butoxide, a monosubstituted alkene is obtained. When this alkene
Aleks [24]

Answer:

See explanation and image attached

Explanation:

The reaction of (R)-2-chloro-3-methylbutane with potassium tert-butoxide yields a monosubstituted alkene .

Since the base is bulky, the Hoffman product predominates because attack occurs at the less hindered carbon atom to yield the major product as shown.

The alkene reacts with HBr at the secondary carbon atom to yield a carbocation intermediate which is flat and planar. Attack on either face of the carbocation yields a racemic mixture of the (2R) and (2S) products.

Rearrangement of the carbocation to yield a tertiary carbocation gives the 2-bromo-2-methyl butane product as shown in the image attached.

6 0
3 years ago
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