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Illusion [34]
3 years ago
8

What is a reference point?

Chemistry
1 answer:
Kipish [7]3 years ago
6 0

Answer: A basis or standard for evaluation, assessment, or comparison; a criterion.

something that is used to judge or understand something else Definition of point of reference. : something that is used to judge or understand something else The professor used the study as a point of reference for evaluating and discussing other theories.

Explanation:

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Can atoms be created or destroyed during a chemical reaction?
ValentinkaMS [17]

Answer:

No.

Explanation:

During chemical reaction, atomes cannot be created or destroyed, they can only react together to form <em>E</em><em>l</em><em>e</em><em>m</em><em>e</em><em>n</em><em>t</em><em> </em>or <em>C</em><em>o</em><em>m</em><em>p</em><em>o</em><em>u</em><em>n</em><em>d</em><em> </em>at the <em>P</em><em>r</em><em>o</em><em>d</em><em>u</em><em>c</em><em>t</em><em> </em>side.

7 0
3 years ago
The hydrophobic effect is the primary driving force for protein folding because: Question 4 options: a) A folded protein is able
Marysya12 [62]
A) folded protein happens because this is the most stable conformation that has the most number of internal hydrogen bonds , which result in hydrophobic functional groups being on the outer sides of the protein and causing the hydrophobic effect

6 0
3 years ago
I don't understand any of these
77julia77 [94]
Ok well whats the questions
3 0
3 years ago
Give the ground-state electron configuration for each of the following elements. After each atom is its atomic number in parenth
Anni [7]

Answer:

(a) ₁₉K: 1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹

(b) ₁₀Ne: 1s² 2s² 2p⁶

---

(a) 3

(b) 6

(c) 7

Explanation:

We can state the ground-state electron configuration for each element following Aufbau's principle.

(a) ₁₉K: 1s² 2s² 2p⁶ 3s² 3p⁶ 4s¹

(b) ₁₀Ne: 1s² 2s² 2p⁶

Second part

(a) Al belongs to Group 13 in the Periodic Table. It has 13-10=3 electrons in the valence shell.

(b) O belongs to Group 16 in the Periodic Table. It has 16-10=6 electrons in the valence shell.

(c) F belongs to Group 17 in the Periodic Table. It has 17-10=7 electrons in the valence shell.

3 0
3 years ago
Help with this chemistry problem
xz_007 [3.2K]
  N2  +   3H2  ---->    2NH3

! mole of nitrogen reacts with 3 moles of hydrogen to give 2 moles of ammonia.

So by proportion  number of moles NH3 obtained from 0.60 moles of N2 =

  0.6 *2  = 1.2 moles Answer
6 0
3 years ago
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