CHEMISTRY HIGH SCHOOL

Fluorine (F) and bromine (Br) are in the same group on the periodic table. How do atoms of these elements compare when they form bonds?

Answers

Answer 1
Answer:

Answer:

they both gain one electron

Explanation:

they are both halogens and they each have one unpaired electron so that unpaired electron join together to make them form a bond
Answer 2
Answer:

Answer:

c

Explanation:

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Answers

Answer:

C

Explanation:

According to the law of conservation of energy, the energy released by the system must be transferred to and absorbed by the surroundings

Answers

True! 
 Energy released by system is absorbed by surroundings.

46 What occurs at one of the electrodes in both an electrolytic cell and a voltaic ccl1?( I) Oxidation occurs as electrons arc gained at the cathode.
(2) Oxidation occurs as electrons are lost at the anode.(3) Reduction occurs as electrons are gained at the anode.
(4) Reduction occurs as electrons are lost at the cathode.

Answers

Oxidation occurs as electrons are lost at the anode at one of the electrodes in both an electrolytic cell and a voltaic cell. The answer is number 2. The rest of the choices does not answer the question given above.

Rank the following structures in order of decreasing electrophilic strength.

Answers

Electrophiles are positively charged or neutral species having empty orbitals that are attracted to an electron rich center. Examples of these are the Bronsted acid. Bronsted acid accepts an electron pair for hydrogen.

Determine the pH of 0.450 M HC7H5O2. The Ka for HC7H5O2 is 6.5 × 10⁻⁵.

Answers

the pH of 0.450 M HC7H5O2. The Ka for HC7H5O2 is 6.5 × 10⁻⁵.

=2,27

What is the value for ΔSºreaction for the following reaction, given the standard entropy values? Al2O3(s) + 3H2(g) → 2Al(s) + 3H2O(g) –35 J/mol*K +35 J/mol*/K +179 J/mol*K –179 J/mol*K

Answers

Let me help you by giving the formula as it will be more useful for you. delta S = Sum(n) (Delta S(products)) - Sum(m)(Delta S(reactants)). There are m and n in formula that are coefficients of the reactants and products that are given in the equation.

The answer is C just got it right
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