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3 years ago

What physical changes occured while you ate breaskfast?

Chemistry

2 answers:

oksano4ka [1.4K]3 years ago

8 0

Answer: It made you not hungry anymore and filled you up. It also helped your brain be more focused.

Explanation:

A physical change is a change that doesn't create a new substance or change the substance. Usually this involves a size or shape change. ... A chemical change is a change that creates a new substance or changes the substance. Usually, this involves color change, temperature change, and/or a new substance being formed.

hope this help luv

KatRina [158]3 years ago

3 0

Answer:

Now eating can change food both physically and chemically. Once your spit touches the food chemicals in the saliva begin to change the food chemically.

Explanation:

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Identify the most common reaction conditions for the dehydration of 2,3-dimethyl-2-pentanol.Select all that apply.A. The presenc

defon

Answer:

D. The presence of a base catalyst.

E. The presence of an acid catalyst. and

F. The presence of heat.

Explanation:

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3 years ago

If you were givin 2.50 moles of.sodium bromide, how many grams of salt do you have

mihalych1998 [28]

Answer: 257.23

Explanation:

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2 years ago

Classify the substances according to the strongest solute-solvent interaction that will occur between the given substances and w

-BARSIC- [3]

Explanation:

Ion-dipole interactions are defined as the interactions that occur when an ion interacts with the dipole of a molecule (polar molecule).

For example, $CuCl_{2}$ , $CuSO_{4}$ , $CaCl_{2}$ , NaCl etc are all the molecules that will show ion-dipole interactions.

Dipole-dipole interactions are defined as the interactions that occur when partial positive charge on an atom is attracted by partial negative charge on another atom.

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For example, $NH_{3}$ , $CH_{3}OH$ etc are the molecules which show dipole-dipole interactions.

5 0

2 years ago

Help I'm giving you a lot of points and do not put random or crazy stuff the real question

dybincka [34]

Answer:

Endothermic

Explanation:

Because Endothermic is cold and exothermic is hot and if you are using an ice pack it would be Endothermic and if you were using something that was hot it would be exothermic

6 0

2 years ago

The density of mercury, the only metal to exist as a liquid at room temperature, is 13.6 g/cm3. What is that density in pounds p

saw5 [17]

Answer:

0.492 lb/in^3

Explanation:

From Density of Mercury (13.6g/cm3) given,

Mass = 13.6g

Volume = 1cm3

Now we covert these variables as follows :

For Mass:

454 g = 1 lb

13.6g = 13.6/454 = 0.03lb

For volume:

2.54 cm = 1 in

1cm = 1/2.54 = 0.394in

Volume = (0.394in)^3 = 0.061 in^3

Density = Mass /volume

Density = 0.03lb/0.061 in^3

Density = 0.492 lb/in^3

6 0

3 years ago