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alexgriva [62]
3 years ago
14

Properties describe matter phsical or chemical​

Chemistry
2 answers:
scZoUnD [109]3 years ago
8 0

Answer:

Physical matter

Explanation:

Wewaii [24]3 years ago
6 0

Answer:

Properties describe physical matter.

Explanation:

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san4es73 [151]

Answer:

5 point) Chemists used systems and order because they study the basic unit of all forms of matter, which is the atom . However, there are several different kinds of atoms, called elements . Chemists organize these elements using the periodic table .

Explanation:

3 0
3 years ago
Assuming that both cases describe hydrogen‑like atoms with one electron, for which case is more energy emitted or absorbed?
Nana76 [90]

Assuming that both cases describe hydrogen‑like atoms with one electron, More energy is emitted or absorbed for case 2. The correct option is D.

<h3>What is emitting of energy, by electron?</h3>

The energy of the electron decreases as it changes levels, and emission of photons happens in the atom.

With the electron moving from a higher to a lower energy level, the photon is emitted. The photon's energy is the same as the energy lost by an electron moving to a lower energy level.

Thus, the correct option is D, More energy is emitted or absorbed for case 2.

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5 0
2 years ago
Salt is a type of _______ solid, which means that it will _______ when placed in water. A. soluble, float B. soluble, dissolve C
Allisa [31]
A, because a soluble dissolves in water
5 0
3 years ago
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How do scientists do background research on topics they have question about
Aliun [14]
They use information from other things that relate to that topic and then use that to do their research
3 0
3 years ago
What is the pH of a 6.7 x 10^−5 M H+ solution?
lyudmila [28]

Answer:

pH = 4.17

Explanation:

According to the molar concentration you stated, pH of the solution is: 4.17

Remember that pH = - log [H⁺]

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When:

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pH = 7 → Neutral solution

pH < 7 → Acid solution

3 0
3 years ago
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