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3 years ago

Which answer below correctly identifies the type of change and the explination for the boiling of water

1 answer:

7 0

Answer:

Physical change because even though gas formation was observed, the water was undergoing a state change, which means that its original properties are preserved.

Explanation:

Water boiling results in the physical state changing from solid to gaseous water. This moment can be called boiling or vaporizing, which is the change from liquid to gaseous state by heating water. Thus, the "Boiling Point" (PE) of a substance is the temperature at which that substance changes from liquid to gaseous state and, in the case of water, is 100 ° C. When the water reaches this temperature its physical change occurs because, despite the formation of gas, the water was undergoing a state change, which means that its original properties are preserved.

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Which statement is true? Inertia causes bodies to slow in their motion, unless they’re pushed by a force. Inertia resists change

GarryVolchara [31]

Inertia decelerates a body.

8 0

3 years ago

Read 2 more answers

Answer this correctly, only sincere answers please. I really need help. I will do all I can to make someone answer this. Thanks!

Marrrta [24]

Answer:

See Explanation

Explanation:

Let us recall that;

[H^+] [OH^-] = 1 * 10^-14

Where;

[OH^-] = 1 x 10^-11

Then;

[H^+] = 1 * 10^-14/1 x 10^-11

[H^+] = 1 * 10^-3

pH = -log [H^+]

pH = -log(1 * 10^-3)

pH = 3

Also;

pH + pOH = 14

pOH = 14 - pH

pOH = 14 -3

pOH = 11

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3 years ago

Why is water considered a pure substance and not a mixture?

Damm [24]

I believe it has something to do with the H2O molecules, because a chemical compound is not a mixture.

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3 years ago

The electrostatic attraction between positively charged nuclei and negatively charged electrons permits two atoms to be held tog

Serggg [28]

Answer:

The correct answer is a. chemical bond. See the explanation below, please.

Explanation:

The resulting electrostatic interaction is called ionic bond between ions of opposite charge (one negative and one positive). This allows the attraction between both charges, constituting a chemical compound. Eg the Sodium (Na +) ion combines with the Chlorine (Cl-) ion forming Nacl (sodium chloride, known as table salt).

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If a refrigerator is a heat pump that follows the first law of thermodynamics, how much heat was removed from food inside of the

kirill115 [55]

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3 years ago