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3 years ago

HELP HELP HELP MEH PLEASE ILL MARK BRAINLIEST

Chemistry

2 answers:

Elanso [62]3 years ago

6 0

Answer:

High luster shiny is the characteristic of metals while low luster and dull is a non metal.

Metals are ductile because wires are made up of metals which is due to their ductility. non metals are not ductile.

Non metals are non melliable while metals are melliable

Non metals are poor conductor while metals are good conductor of heat and electricity.

Metals are located on the left side while non metals are located on right side of periodic table.

Explanation:

sveta [45]3 years ago

5 0

Answer:

High luster- shiny: metals

Low luster- dull: non-metals

Is Ductile- can be pulled into thin wires: metals

Not ductile: non-metals

Not malleable- is brittle: non-metals

Is malleable- elements can be hammered into thin sheets: metals

Poor conductors of heat and electricity: non-metals

Good conductors of heat and electricity: metals

Located on the left side of the periodic table: metals

Located on the right side of the periodic table: non-metals

sorry if i got something wrong but i think this is all right

hope this helps :)

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Which choice gives the correct oxidation numbers for all three elements in rb2so3 in the order that the elements are shown in th

vlabodo [156]

<h3>Answer:</h3>

Rb = + 1

S = + 4

O = - 2

<h3>Explanation:</h3>

Oxidation states of the elements were calculated keeping in mind the basic rules of assigning oxidation states which included assignment of +1 charge to first group elements i.e. Rubidium (Rb) and assignment of -2 charge to Oxygen atom. Then the oxidation state of Sulfur was calculated as follow,

Rb₂ + S + O₃ = 0

Above zero (0) means that the overall molecule is neutral.

Putting values of Rb and O,

(+1)₂ + S + (-2)₃ = 0

(+2) + S + (-6) = 0

+2 + S - 6 = 0

S - 6 = -2

S = -2 + 6

S = + 4

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3 years ago

Olivia, a Latina student, is told that she can check only two books out of the library at a time, but Leann, a white student, is

Sliva [168]

Answer:

Explanation:

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3 years ago

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X, Y & Z represents 2, 12 & 17 relatively a. Write the electronic configuration of x, y, and z b. Place the elements in

olasank [31]

The electronic configuration of x, y, and z.

$x=1s^2$

$Y= 1s^22s^22p^63s^2$

$Z= 1s^22s^22p^63s^23p^5$

<h3>What is an electronic configuration?</h3>

Electronic configuration, also called electronic structure, is the arrangement of electrons in energy levels around an atomic nucleus.

$x=1s^2$

$Y= 1s^22s^22p^63s^2$

$Z= 1s^22s^22p^63s^23p^5$

x= Period 1 and group18

Y=Element is in period 3 and Group 2

Z=Element is in period 3 and group 17.

X, Y & Z represents Helium, magnesium, and chlorine.

Learn more about the electronic configuration here:

brainly.com/question/19589767

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2 years ago

what is the pH of a solution that has a hydronium ion concentration 100 times greater than a solution with a pH of 4

Anna71 [15]

Answer:

Explanation:

First, find the hydronium ion concentration of the solution with a pH of 4.

[H₃O⁺] = 10^-pH

[H₃O⁺] = 10⁻⁴

[H₃O⁺] = 1 × 10⁻⁴

Next, multiple the hydronium ion concentration by 100 to find the hydronium ion concentration of the new solution.

[H₃O⁺] = 1.0 × 10⁻⁴ × 100 = 0.01

Lastly, find the pH.

pH = -log [H₃O⁺]

pH = -log (0.01)

pH = 2

The pH of a solution that has a hydronium ion concentration 100 times greater than a solution with a pH of 4 is 2.

Hope this helps.

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4 years ago

6. Which pair of compounds below represents a conjugate acid-base pair?

vova2212 [387]

H2S and HS- are a conjugate acid-base pair.

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3 years ago