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alexgriva [62]
2 years ago
7

What happens to the humidity if the temperature drops and the amount of moisture in the air stays the same?

Chemistry
1 answer:
solniwko [45]2 years ago
4 0

Answer: B. The humidity increases

Explanation:

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If a glass bottle breaks into thousands of tiny pieces what type of change occurs
mixas84 [53]

Physical change occurs.

6 0
2 years ago
A car driver accelerates to a speed of 35 mph and then takes her foot off the gas pedal. Even though she does not press the brak
RSB [31]
The list of options to answer this question is:

A.kinectic energy is transformed into thermal energy.

B.electrical energy is transformed into potential energy.

C.potential energy is transformed into kinectic energy.

D.mechanical energy is transformed into chemical energy.

The answer is the option A. A.kinectic energy is transformed into thermal energy.

As you know energy cannot be lost but transformed.

When friction force acts over the tyres it increases the speed of the particles in the tyres which is thermal energy, this thermal energy increase comes from kinetic energy loss.
7 0
3 years ago
Determine the number of protons, electrons, neutrons, valence electrons and valency in Oxygen atom (O) and Oxide ion (O2-). Comp
wolverine [178]

Answer:

<em />

<em>                    Atom (O)           Ion (O²⁻)</em>

<em>Protons             8                       8</em>

<em>Electrons          8                      10</em>

<em>Neutrons          8                       8   </em>      ← only for the oxygen-16 isotope.

* The number of neutrons depends on the specific isotope. It is equal to the mass number of the isotope less the number of protons.

Explanation:

<em>Oxygen</em> is the element with atomic number 8. That means that the oxygen atoms have 8 protons.

Protons have relative positive charge equal to +1 and electrons have relative negative charge -1: same magnitude opposite sign.

Thus, the neutral oxygen, O, has also 8 electrons and 8 protons.

As per the number neutrons it depends on the specific isotope.

The isotopes are identified by the mass number, which is the number of protons plus neutrons. For instance, oxygen-16 isotope has mass number 16, 8 protons and 8 neutrons, while oxygen-15 isotope has mass number 15, 8 protons and 7 neutrons.

Oxide ion O²⁻ is the oxygen ion with -2 charge, meaning that it has 2 more electrons than protons. Then, it has 8 protons and 10 electrons, again the number of neutrons depend of the specific isotope.

The stability of an atoms or ion refers to its trend to remain in the same state or react to form another species. The ions O²⁻ are less stable than the neutral atoms O, because the negative charge will be attracted to any positive ion so ti will react faster than the neutral oxygen atom (O).

8 0
3 years ago
Which of the following is equal to 1 mole?
nadya68 [22]
They are all equal to one mole (all of the above).
7 0
3 years ago
Suppose you had used carbon tetrachloride, a liquid of density 2.20 g/mL, to determine the actual volume measured by your pipet.
VARVARA [1.3K]

Answer:

Carbon tetrachloride would be 2.2 fold heavier than water

Explanation:

Carbon tetrachloride (2.20g/mL) is denser than water (1.00g/mL)

4 0
2 years ago
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