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Maslowich
3 years ago
13

Number of electrons in the outer ring of bromine

Chemistry
1 answer:
Bond [772]3 years ago
8 0
Simple, 

looking at the periodic table..

1s2,2s2,2p6,3s2,3p6,4s2,3d10,4s5

Thus, there are 5 valence electrons in the outer ring of Bromine.
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Jolene wants to experiment with sugar cubes. Which of the following causes a sugar cube to only change physically, not chemicall
Ugo [173]
If you cut the cube and keep all the pieces you are causing only physical change
5 0
3 years ago
For the reaction 2A(g) â B(g), the equilibrium constant is Kp = 0.76. A reaction mixture initially contains 4.0 atm of gas (PA =
timofeeve [1]

Answer: (a) The reaction mixture will proceed toward products.

Explanation:

Equilibrium constant is defined as the ratio of pressure of products to the pressure of reactants each raised to the power their stoichiometric ratios. It is expressed as K_p

K is the constant of a certain reaction when it is in equilibrium, while Q is the quotient of activities of products and reactants at any stage other than equilibrium of a reaction.

For the given chemical reaction:

2A(g)\rightleftharpoons B(g)

The expression for Q_p is written as:

Q_p=\frac{p_B}{(p_A)^2}

Q_p=\frac{(2.0)}{(2.0)^2}

Q_p=0.5

K_p=0.76

Thus as K_p>Q_p , the reaction will shift towards the right i.e. towards the product side.

7 0
3 years ago
How does the arrangement of particles in a gas differ from the arrangements in liquids and solids?
Paladinen [302]
The arrangement of particles in a gas is random. they have no orderly arrangement and are free to move around while the particles in solid are in an orderly and rigid arrangement and cannot move about. particles in liquid are also arranged orderly but are not rigid
3 0
3 years ago
How do you calculate mass using density and volume?
skad [1K]
Example:

Mass = ?

Density = 25 g/mL

Volume = 5 mL

therefore:

d = m / V

25 = m / 5

m = 25 x 5

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hope this helps!

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Scientist can use trees to look at climates of the past. How? What information can they gather and how do they gather it? Explai
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Explanation:

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These are layers of cambium in each successive years formed. They have an annual growth pattern and are known as tree rings.

Tree rings can be used to decipher the age of a tree.

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learn more:

Climate change brainly.com/question/7824762

#learnwithBrainly

6 0
3 years ago
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