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Pachacha [2.7K]
4 years ago
6

Solve find the value of x​

Chemistry
2 answers:
Yakvenalex [24]4 years ago
6 0
If this is from a book up the app “slader” it give you the answer and how to solve it :)
Evgen [1.6K]4 years ago
3 0

Answer:

50

Explanation:

2x+5=105

2x=100

2x/2=100/2

x=50

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By referring to particles, explain why the white ring formed in the glass tube
Leya [2.2K]

Answer:

Ammonia and Hydrogen Chloride.

Explanation:

Assuming this is what you're referring to, Ammonia (NH3) and Hydrogen Chloride(NCI3). The concentrated ammonia (NH3) is placed on a pad in one end of a tube and hydrochloric acid (NCI3) on a pad at the other. Shortly after the gases will begin diffusing far enough to meet, a ring of solid ammonium chloride (NH4Cl) will be formed.

7 0
3 years ago
Which is equal to a temperature of 50 degrees F? 18 degrees C, 46 degrees C, 10 degrees C, 32 degrees C?
kakasveta [241]

Answer:

10 degrees C

Explanation:

4 0
3 years ago
Enantiomers are molecules that show handedness and contain at least one chiral carbon. a chiral carbon has ________ different gr
seraphim [82]
Four different groups attached to it. A chiral carbon is an asymmetric carbon.
Enantiomers are a pair of stereoisomer molecules that are chiral. For an example, I have attached an image of a chiral carbon below. 

4 0
3 years ago
alculate the standard enthalpy of formation of ethanoic acid given that the standard enthalpy of combustion for carbon is –394 k
agasfer [191]

Answer:

The standard enthalpy of formation of ethanoic acid is -484 kJ/mol.

Explanation:

C(g)+O_2(g)\rightarrow CO_2(g),\Delta H_{1, comb}=-394 kJ/mol...[1]

H_2(g)+\frac{1}{2}O_2(g)\rightarrow H_2O(l),\Delta H_{2, comb}=-286 kJ/mol..[2]

CH_3COOH(l)+2O_2(g)\rightarrow 2CO_2(g)+2H_2O(l),\Delta H_{3, comb}=-876 kJ/mol..[3]

The standard enthalpy of formation of ethanoic acid :

2C(g)+2H_2(g)+O_2(g)\rightarrow CH_3COOH, \Delta H_{4}=?..[4]

Using Hess's law to calculate :

2 × [1] + 2 × [2] - [3] = [4]

\Delta H_4=2\times (-394 kJ/mol)+2\times (-286 kJ/mol) - (-876 kJ/mol)

=\Delta H_4=-484 kJ/mol

The standard enthalpy of formation of ethanoic acid is -484 kJ/mol.

5 0
3 years ago
Which describes a climate effect on the rate of weathering? Cold climates favor mechanical weathering. Chemical reactions occur
Alex777 [14]

Answer:

Cold climates favor mechanical weathering.

Explanation:

I just took the test and this is the correct answer!

5 0
3 years ago
Read 2 more answers
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