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blsea [12.9K]
3 years ago
8

Which element has the largest atomic radius? A) As B) N C) P D) Sb

Chemistry
1 answer:
disa [49]3 years ago
3 0

Answer:

The correct answer is option D, Sb

Explanation:

Atomic radius of As = 185 pm

Atomic radius of N = 155 pm

Atomic radius of P = 195 pm

Atomic radius of Sb = 206 pm

If we arrange the following element on the basis of their atomic radius in the increasing order , we will get the following

N (155 pm) < As (185 pm) < P (195 pm) < Sb (206 pm)

Thus among all the given element Sb has the largest atomic radius

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Explain The Law of Conservation of Mass​
gayaneshka [121]

Answer:

The Law of Conservation of Mass dates from Antoine Lavoisier's 1789 discovery that mass is neither created nor destroyed in chemical reactions. In other words, the mass of any one element at the beginning of a reaction will equal the mass of that element at the end of the reaction.

Hope it's helpful to you

7 0
3 years ago
The empirical formula of a gaseous fluorocarbon is CF2. At a certain temperature and pressure, a 1-L volume holds 8.93 g of this
dimaraw [331]

Answer:

C₄F₈

Explanation:

Using their mole ratio to compute their mass

molar mass of carbon = 12.0107 g/mol

molar mass of fluorine gas = 37.99681

let x = mass of carbon

given mass of fluorine = 1.70 g

x / 12.01067 = 1.70 / 37.99687

cross multiply

x = ( 1.70 × 12) / 37.99687 = 20.4 / 37.99687 = 0.53688 g

mass of one mole of CF₂ = 0.53688 + 1.70 = 2.23688 g

number of mole of CF₂ = 8.93 g / 2.23688 = 3.992 approx 4

molecular formula of CF₂ = 4 (CF₂) = C₄F₈

3 0
3 years ago
Rank the following species according to the decreasing energy needed to raise the temperature of 10.0 g of the substance by 25.0
bonufazy [111]

Answer 1) : To rank the species according to the decreasing energy needed to raise the temperature of 10 g of the substance by 25 °C, the oder of energy needed is given below as per their specific heat.

Which requires more energy as per their specific heats;

  1. water  4.184
  2. aluminum  0.897
  3. cast iron  0.460
  4. Copper  0.385
  5. Silver 0.235

Answer 2)To rank items as equivalent, overlap them.

The average kinetic energy of the molecules after point D,

The average kinetic energy of the molecules from point B to point C,

The average kinetic energy of the molecules before point A.

6 0
3 years ago
What type of substance is magnesium carbonate?
tresset_1 [31]
Magnesium salt is the type of substance
7 0
3 years ago
Read 2 more answers
Please help! Find the distance to each destination in AU. Use the correct conversion factor.
Zepler [3.9K]

Explanation:

The question involves converting from one unit (Kilometres) to another unit (Astronomical unit)

The relationship between both units is given as;

1 Km = 6.68459e-9 Au

Kulper belt

6.5 billion km = 6.5e9 Km

1 Km = 6.68459e-9 Au

6.5e9 Km = x

Solving for x;

x = 43.45 Au

Alpha Centauri

44 trillion km = 4.4e13

1 Km = 6.68459e-9 Au

4.4e13 km = x

Solving for x;

x = 294121.83 Au

4 0
3 years ago
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