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vovikov84 [41]
3 years ago
14

Based on graph 4 across a period the electronegativity​

Chemistry
2 answers:
Romashka-Z-Leto [24]3 years ago
7 0
4


Answer with explanation
viva [34]3 years ago
3 0
Can you please type the question here?
You might be interested in
Q2.
Serga [27]

Answer:

266 liters Carbon iv oxide will be formed

Explanation:

The first thing we need to do here is to calculate the number of moles of oxygen reacted.

This can be calculated using the ideal gas equation;

Mathematically;

PV = nRT

From the question;

P = pressure = 10.5 atm

V = volume = 400 liters

n = number of moles = ?

T = temperature = 125 + 273 = 398K

R = molar gas constant = 0.0821 L•atm•K^-1•mol^-1

Substituting these values, we have ;

n = PV/RT

n = (10.25 * 400)/(398 * 0.0821) = 125 moles

From the question;

15 moles oxygen gave 10 moles CO2

125 moles oxygen will give x moles CO2

x = (125 * 10)/15 = 83 moles

Now, we want to know the volume of CO2, present in 83 moles using the given reaction conditions.

Mathematically;

PV = nRT

V = nRT/P

= (83 * 0.0821 * 398)/10.25 = 265.65 which is approximately 266 Liters

4 0
3 years ago
If a wave bounces off a surface at an angle this is an example of _______________.
kirill115 [55]

answer should be Reflection

6 0
3 years ago
Which substance can not be broken down by a chemical change
Marina CMI [18]
A substance that cannot be broken down into even by chemical means is called an element. About 90 elements on the Periodic Table can be found naturally on Earth. Three of the most common ones are aluminium, silicon and oxygen.
Sorry I couldn't give you a more specific answer as your question wasn't multiple choice.
8 0
3 years ago
AHAHA KENMA SUPREMACY
hoa [83]
YESSSSS I ADORE HIM-
5 0
3 years ago
Read 2 more answers
The weak base ammonia, NH3, and the strong acid hydrobromic acid react to form the salt ammonium bromide, NH4Br. Given that the
Leya [2.2K]

The pH of a 0.053 M solution of ammonium bromide at 25° C is equal to 33.9.

<h3>What are acids and bases?</h3>

Acids are a substance that has a pH lower than 7 and bases are a substance that has a pH of more than 7.

the pH of any solution will be calculated as:

pH = -log[H⁺]

Given the chemical reaction in equilibrium with ICE table will be:

                         NH₄⁺  +  H₂O  ⇌  NH₃  +  H₃O⁺

Initial:                 0.289                       0          0

Change:                 -x                         +x        +x            

Equilibrium:      0.289-x                      x           x

Equation for Kb for this reaction is:

Kb = [NH₃][H₃O⁺] / [NH₄⁺]

Given value of Kb = 1.8 × 10⁻⁵

On putting values equation becomes

1.8 × 10⁻⁵ = x² / 0.053 - x

The value of x is negligible as compared to 0.053 so the equation becomes

1.8 × 10⁻⁵ = x² / 0.053

x = 2.28 × 10⁻³

i.e. [NH₃] = [H₃O⁺] =  33.9 × 10⁻³

Calculating the pH by putting this concentration value on the equation

pH = -log(33.9 × 10⁻³)

pH = 33.9

Thus, the pH will be 33.9.

To learn more about acids and bases, refer to the link:

brainly.com/question/13646534

#SPJ1

7 0
2 years ago
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