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2 years ago

Choose the correct order of electron structures from largest to smallest.

Chemistry

2 answers:

Yakvenalex [24]2 years ago

6 0

A. principal energy level, sublevel, orbital, electron

likoan [24]2 years ago

5 0

Answer:

Principal energy level, sublevel, orbital, electron. A table relating these classifications is attached.

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Which scenario represents an unbalanced force?

ladessa [460]

A . A person Jumping represents an unbalanced force.

Explanation:

If equal amount of force applied on any object from both the directions, then the object will not move and so the force is a balanced force.

If an unequal amount of force on an object from both sides then the object will move in the opposite direction of the maximum force applied, so it is called as an unbalanced force.

When the force is unbalanced then its velocity will change, so options C and D are omitted.

In Option B the vase is sitting on a table, just kept so there is no action of any unbalanced force.

But a person jumping represents an unbalanced force, since the person do not jump with constant velocity and it will vary.

7 0

3 years ago

Look at the diagram below.

antiseptic1488 [7]

If it gains an electron it will be negatively charged and if it loses an electron it will be positively charged

7 0

2 years ago

Read 2 more answers

A molecule can be made of which of the following? many elements a single element a single atom

o-na [289]

Answer: Option (a) is the correct answer.

Explanation:

When two or more atoms are chemically combined together then the product formed is known as a molecule.

These atoms can be bonded through either covalent or ionic bonds.

For example, a water molecule consists of two hydrogen atoms combined with an oxygen atom. Chemical formula of water is $H_{2}O$ .

Thus, we can conclude that an element can be made of many elements.

6 0

2 years ago

Read 2 more answers

A 4.3 L gas bubble at STP is heated to 984 K, and the pressure increases to 1520 mmHg. What is the new volume?

Natalka [10]

Answer:

v2=40.35L

Explanation:

p1v1/t1=p2v2/t2

v2=t2p1v1/t1p2

v2=984*760*22.4/273.15*1520

v2=40.35 L

5 0

2 years ago

The volume of a gas at 27.0c and 0.200atm is 80.0 ml .what volume will the same gas sample occupy at STP?

FrozenT [24]

Answer:

V₂ = 14.56 mL.

Explanation:

We can use the general law of ideal gas: PV = nRT.

where, P is the pressure of the gas in atm.

V is the volume of the gas in L.

n is the no. of moles of the gas in mol.

R is the general gas constant,

T is the temperature of the gas in K.

If n is constant, and have different values of P, V and T:

(P₁*V₁) / T₁ = (P₂ * V₂) / T₂

Knowing that:

V₁ = 80.0 mL, P₁ = 0.20 atm, T₁ = 27 °C + 273 = 300 K.

V₂ = ??? mL, P₂ (STP) = 1.0 atm, T₂ (STP) = 0 °C + 273 = 273 K.

Applying in the above equation

(P ₁* V₁) / T₁ = (P₂ * V₂) / T₂

(0.20 atm * 80.0 mL) / 300 K= (1.0 atm * V₂) / 273 K

V₂ = (0.20 atm * 80.0 mL * 273 K) / (300 K * 1.0 atm)

V₂ = 14.56 mL

So, the answer is: V₂ = 14.56 mL.

7 0

2 years ago