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liq [111]
4 years ago
12

Why is this reaction considered to be exothermic? a Because energy difference A is greater than energy difference C. b Because e

nergy difference A and energy difference C are about equal. c Because energy difference B is greater than energy difference A. d Because energy difference B is greater than energy difference C. e Because energy difference B is greater than energy difference C plus energy difference A.
Chemistry
1 answer:
Pani-rosa [81]4 years ago
4 0

Answer:

we would need a bit more info for this

Explanation:

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Help please the questions are confusing
SashulF [63]

Answer:

5- number of electrons=11

Explanation:

in a neutral atom number of protons=number of electrons which in this case=11

3 0
4 years ago
Read 2 more answers
The empirical formula for two compounds that have very different properties (one tastes very sour and the other very sweet) is c
DiKsa [7]

I believe that the choices for this question are:

C2H4O2, C4H8O4 <span>
CH2O, C6H12O6 
C3H6O3, C6H12O6 
C2H4O2, C6H12O6 </span>

 

The answer to this based on the molar masses given is:

C2H4O2, C6H12O6 

 

To prove calculate the molar mass:

C2H4O2 = 2*12 + 4*1 + 2*16 = 60

C6H12O6 = 6*12 + 12*1 + 6*16 = 180

3 0
3 years ago
Read 2 more answers
Which interaction produces dispersive forces by creating temporary dipoles that induce dipoles in other molecules?
Tpy6a [65]
This interaction must be one of the intermolecular forces, particularly, Van der Waals forces. From the description given, this force is called <em>induced dipole-induced dipole forces</em>. Dipole is defined as the separation of positive and negative charges. This type of intermolecular force is very weak compared to hydrogen bonding.
5 0
3 years ago
Identify from the following list of molecules and ions which behave as Lewis acids: CO2, NH3, BCl3, Fe3+. (A) CO2 and NH3 (B) NH
allsm [11]

Answer : The correct option is, (D) CO₂, BCl₃, and Fe³⁺

Explanation :

According to the Lewis concept, an acid is defined as a substance that accepts electron pairs and base is defined as a substance which donates electron pairs.

(a) CO_2

It is a Lewis-acid because it can accepts electron pairs.

(b) NH_3

It is not a Lewis-acid because it can not accepts electron pairs but it is a base because it can donates and accept hydrogen ion.

(c) BCl_3

It is a Lewis-acid because it can accepts electron pairs because it has an incomplete octet and an empty 2p orbital.

(d) Fe^{3+}

It is a Lewis-acid because it can accepts electron pairs.

Hence, the ions which behave as Lewis acids are, CO₂, BCl₃, and Fe³⁺

6 0
3 years ago
Convert 23 kg to ounces (2.2 lbs = 1 kg) (1 lb = 16 ounces)
Romashka-Z-Leto [24]

Answer:

23 kgs = 809.6 ounces

Explanation:

given:

1 kg = 2.2 ibs

therefore, 23 kgs = 2.2*23 Ibs = 50.6 Ibs

since, 1 Ib = 16 ounces

therefore, 23 kgs = 50.6*16 ounces = 809.6 ounces

5 0
3 years ago
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