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Alexandra [31]
3 years ago
12

Atom A and Atom B have the same number of protons and neutrons, but they do not have the same nun ber of

Chemistry
1 answer:
Bogdan [553]3 years ago
6 0

Answer:

The atoms have the same chemical symbol.

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NO LINKS07.02 LC)
tresset_1 [31]
I believe they are converted to energy
3 0
3 years ago
Correctly classify each of the following compound as highly soluble or insoluble in water. 1. NaCl 2. CH3Cl 3. CH3OH 4. KOH 5. C
Anna35 [415]
There are solubility rules for inorganic compounds in water as shown in the picture attached. For organic compounds, we use the concept of polarity.

1. NaCl: Since NaCl is a chloride and Na is not included in the list of insoluble, therefore, NaCl is<em> </em><em>highly soluble</em>.

2. CH₃Cl: This compound is organic. Since the electonegativity between C and Cl is great, it tends to be polar. Because water is also polar, this is <em>highly soluble.</em>

3. CH₃OH: This is an alcohol. Alcohols with short chains of hydrocarbon are <em>highly soluble </em>in water because of hydrogen bonding (-OH).

4. KOH: From the table, KOH is <em>highly soluble</em>. In fact, this is a strong solid which readily dissociates in water.

5.  C₆H₆ is the benzene ring. This is a nonpolar molecule, so you would expect this to be<em> insoluble</em> with water.

6. C₆H₁₄ is hexane which is a long chain of hydrocarbons. Because there is no point of hydrogen bonding, this is nonpolar, and therefore,<em> insoluble</em> in water.

7. KNO₃ is <em>h</em><em>ighly soluble</em> because all nitrates are soluble.

8. CCl₄ is an organic compound. Individually, C-Cl bonds are polar. But because there are 4 of them, they cancel out. As a result, there is a balance of partial charges which makes it nonpolar. Thus, this is <em>insoluble in water</em>.

9. NaSO₄: from the table, this is <em>highly soluble</em>.

10. <span>CH</span>₃<span>CH</span>₂<span>OH: Although it is composed of the nonpolar hydrocarbon chain, the OH group is much stronger such that it is <em>highly soluble</em> in water.

11. CH</span>₂Cl₂: This is polar because there is an imbalance due to the C-H and C-Cl bonds. Thus, it is <em>highly soluble</em> in water.

12. CH₃COOH is a carboxylic acid which is even more soluble than alcohols. Thus, this is <em>highly soluble </em>in water.

8 0
3 years ago
Read 2 more answers
A canister of acetylene has a volume of 42 L. The temperature of the acetylene is 305 K and the pressure is 780 torr. Determine
stellarik [79]
First, we need to assume acetylene to adapt an ideal gas behavior. So, we can use the Ideal Gas Law:

PV = nRT

Given:

V = 42 L
T = 305 K
P = 780 torr = 1.026 atm 
R = gas constant, 0.0821 L atm/ mol K
n = amount of gas in the canister

1.026 atm * 42 L = n * 0.0821 L atm/mol K * 305 K

n = 1.72 moles of gas 


3 0
4 years ago
(C=12.01 amu, H=1.008 amu, O=16.00 amu)<br> [?] g/mol CH20
tekilochka [14]

CH₂O = C + 2.H + O

= 12.01 + 2 x 1.008 + 16

= 30.026 amu = 30.026 g/mol

8 0
2 years ago
What is the name of this hydrocarbon?
vovikov84 [41]
A) 2,3-dimethylpentane
6 0
4 years ago
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