Heelp plsWhich element has the lowest electronegativity?
nitrogen (N)
lithium (Li)
bromine (Br)
potassium (K)

Answers

Answer 1
Answer:

Answer: Potassium (K) has the lowest electronegativity among the given elements.

Explanation:

Electronegativity is a measure of an element's ability to attract electrons towards itself when it is involved in a chemical bond with another element. Potassium has the lowest electronegativity because it has only one valence electron that is located far from the nucleus, making it easier to lose that electron and become a positively charged ion. In contrast, nitrogen, lithium, and bromine have higher electronegativities because they have more valence electrons or the valence electrons are closer to the nucleus, making it more difficult to remove or share electrons.

Answer 2
Answer:

The element with the lowest electronegativity among the given options is potassium (K). Potassium has an electronegativity value of approximately 0.82 on the Pauling scale, which is the lowest value among the four elements listed. In contrast, nitrogen (N) has an electronegativity of approximately 3.04, bromine (Br) has an electronegativity of approximately 2.96, and lithium (Li) has an electronegativity of approximately 0.98. Electronegativity is a measure of an atom's ability to attract electrons towards itself in a chemical bond. The lower the electronegativity value, the less the atom attracts electrons towards itself.

Brainliest?


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1.11g of methane CH4 is burned in a bomb calorimeter containing 1000 grams of water. The initial temperature of water is 24.85 degrees Celsius. The specific heat of water is 4.184 J/g degrees Celsius. The heat capacity of the calorimeter is 695 J/degrees Celsius. After the reaction the final temperature of the water is 35.65 degrees Celsius. Calculate the heat absorbed by the water. Then calculate the heat absorbed by the calorimeter.

Answers

Given: 
M methane = 1.11g CH4
M calories  = 1000g or g of H2O
C heat capacity = 4.184 J/g °C of H2O
C heat capacity = 695 J/°C
Ti = 24.85 °C
Tf = 35.65 °C

Ask: ΔH = ?
Formula: q=mCΔT
                 = (1000 g) (696 J/°C) (10.8°C)
                 = 7506000 J H2O (endothermic) release heat
            
                q reaction = -q calorimeter
                                 = -7506000 J = ΔH

Potato strips placed in a container of concentrated salt water will ultimately __.

Answers

Shrivel/shrink and become flaccid because the water inside of the potato leaves the potato and joins the salt water due to the lower concentration in the salt water

How might you estimate the minimum temperature

Answers

To estimate for the minimum temperature of a daily forecast of low temperature, the first estimate would be the dew point temperature approximately an hour before the daily high temperature is reached. I hope this helps you on your assignment. 

Complete the first row in the table by filling in the missing information about a system at equilibrium.A:

Q < Keq

Q > Keq

Q = Keq

Answers

Answer:

A. Q = Keq

B. Equilibrium quantities of reactants and products

C. Q > Keq

D. System will shift toward reactants

E. Overabundance of reactants

F. System will shift toward products

Here are all the answers :)

Final answer:

To fill in the table about equilibrium, if Q < Keq the reaction will move right (produce more products), if Q > Keq it will move left (produce more reactants), and if Q = Keq the system is at equilibrium with no net change.

Explanation:

To complete the first row in the table about a system at equilibrium, we need to fill in the missing information based on the reaction quotient (Q) and the equilibrium constant (Keq).

  •    

For a system at equilibrium, not only is Q = Keq, but also the change in Gibb's free energy (ΔG) is zero. This relationship can be represented as 0 ΔG° + RT ln K at equilibrium.

Help PLEASE :DElaborate on the changes in molecular motion of particles as they change from solid to liquid to gas.
Question 16 options:
This is the answer >>>>>>>>As the phase changes occur, the freedom of motion of the particles increases.
As the phase changes occur, the freedom of motion of the particles decreases.
As the phase changes occur, the freedom of motion of the particles compresses.
As the phase changes occur, the freedom of motion of the particles is constant.

Answers

Answer:

A) As the phase changes occur, the freedom of motion of the particles increases.

Explanation:

As the phase changes occur, the freedom of motion of the particles increases.

Which foods contain acids? Check all that apply:a.) limes b.) sourdough bread c.) water d.) sugar e.) honey f.) milk g.) lemons h.) tomatoes

Answers

Answer:

Limes

Lemons

Tomatoes

Explanation:

They all contain citric acid - the others are basic

Answer:

a.) Limes

b.) Sourdough bread

g.) Lemons

h.) Tomatos

Explanation: