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balandron [24]
2 years ago
12

11 What is the ionic charge for an ion with 12 p* and 10 e? A 0 B +2 C -2 D +1

Chemistry
1 answer:
aliina [53]2 years ago
3 0

Answer:

+2

Explanation:

10 e   will 'balance '   10 p    then there is two + charges leftover

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According to the balanced equation shown below, 1.00 mole of oxalic acid, h2c2o4, reacts with _________ moles of permanganate io
zheka24 [161]
The balanced equation that shows the reaction between oxalic acid and permanganate ion in an acidic medium is: 2MnO4- + 5H2C2O4 + 6H+ -> 2Mn(2+) + 10CO2 + 8H2O. Thus, 1 mole of oxalic acid reacts with 0.4 mole of permanganate ion. This was obtained using stoichiometry:

1 mol H2C2O4 x (2 mol MnO4-/ 5 mol H2C2O4) = 0.4 mol MnO4- 

In this redox reaction, the permanganate is reduced to manganese(II) ion.
6 0
3 years ago
Please helppp asaappppppp
Zanzabum

Answer:

B. s, p, d, f

Explanation:

These things are often referred to as suborbitals and you normally have s,p,d,f.

S has 1 two orbitals

P has 3 orbitals

D has 5 orbitals

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8 0
3 years ago
Which list of phases of H2O is arranged in order of increasing entropy
jarptica [38.1K]
<span>The list of phases of H2O that is arranged in order of increasing entropy is from solid then liquid then gas. Gaseous water has the most entropy because of the random movement of water molecules. And Solid having the least entropy because the water molecules are arranged in a specific order.</span>
6 0
3 years ago
For an alloy that consists of 93.1 g copper, 111.7 g zinc, and 4.0 g lead, what are the concentrations of (a) Cu, (b) Zn, and (c
Andrew [12]

Answer:

(a) weight percent of Cu = 44.59%

(b) weight percent of Zn = 53.49%

(c) weight percent of Pb = 1.91%

Explanation:

Given: Alloy contains- Cu=93.1 g, Zn=111.7 g, Pb=4.0 g

Therefore, the total mass of the alloy (m) = mass of Cu (m₁) + mass of Zn (m₂)+ mass of Pb (m₃)

m= 93.1 g + 111.7 g + 4.0 g = 208.8 g

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(b) weight percent of Zn = (m₂ ÷ m)× 100% =  (111.7 g ÷ 208.8 g)× 100% =53.49%

(c) weight percent of Pb = (m₃ ÷ m)× 100% =  (4.0 g ÷ 208.8 g)× 100% =1.91%

5 0
3 years ago
A brick measures 25 cm by 12 cm by 13 cm. What is the volume of the brick in cm3? How many millilitters of water would this bric
Yuri [45]
<span>25 cm x 12 cm x 13 cm = 3900 cm^3 Water has a density of 1 mL/cm^3, so the brick would displace 3900 mL of water.

</span>
8 0
3 years ago
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