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antoniya [11.8K]
2 years ago
12

What is the mass of one mole of NaCl?

Chemistry
1 answer:
vampirchik [111]2 years ago
5 0

Answer:

Sodium has an atomic weight of 22.990, and chlorine an atomic weight of 35.45. Therefore the mass of NaCl is 58.44 g/mol.

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If the students were told that one of the materials was titanium and that titanium is still a solid when heated to 1,000°C, whic
Paladinen [302]

The sample having solid substance is considered as titanium.

<h3>Which sample was titanium?</h3>

That sample is considered as Titanium which is still present as a solid substance because all the other samples turns into liquid state due to high temperature.

While on the other hand, the sample which contains titanium has a solid particles and still solid on high temperature so we can conclude that the sample having solid substance is considered as titanium.

Learn more about titanium here: brainly.com/question/11496905

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2 years ago
Which of the following will decrease the frequency of collisions?
kogti [31]

Answer:

The question isn't worded properly, but if 1 or 2 are DECREASED, the frequency of collisions of specified molecules will decrease.

Explanation:

Catalysts only facilitate reaction once molecules collide. Increased temperature makes molecules move more, and thus collide more. For concentration, if there are more molecules in the same amount of room/liquid, there will be more collisions because there are more of the molecules to collide.

8 0
3 years ago
Indicate the number of significant figures in the measured number 0.0020 <br> A. 4<br> B. 5<br> C. 2
Sergio [31]

<u>Answer:</u>

The correct answer option is C. 2.

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Since there is one non-zero number and one ending zero in the decimal position, therefore 0.0020 has 2 significant figures.

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Why would you classify hydrogen as a nonmetal 2017?
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