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3 years ago

Atom , classify ithelppoppppoeowiie

Chemistry

1 answer:

timama [110]3 years ago

5 0

Answer:

A atom is a small unit to which matter can be divided without releasing electrically charged particles

Explanation:

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Calculate the number of moles in 8 g of water.

polet [3.4K]

Answer:

refer the above attachment

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2 years ago

How old are the lunar highlands? 1. 1.8 to 2.6 billion years old 2. 3.1 to 3.8 billion years old 3. 4.0 to 4.3 billion years old

Anastaziya [24]

They are about 4.5 billion years old. Hope this helps.

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4 years ago

Read 2 more answers

In looking at the bolded atoms in the answer choices, which pair consists of molecules having the same geometry?

ICE Princess25 [194]

Correct Answer: option C:The pair which consist of molecules having the same geometry is CH2CCI2 and CH2CH2.

Reason:
Both of the above molecules contain double bonds. They are characterized by sp^2 hybridization. Also, they possess a trigonal planar geometry. In trigonal planar system, the molecule consist of three equally spaced sp^2 hybrid orbitals, which arranged at angle 120 degree.

7 0

4 years ago

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Water (2150 gg ) is heated until it just begins to boil. If the water absorbs 5.91×105 JJ of heat in the process, what was the i

Serjik [45]

Answer:

Initial temperature of water was 34,3°C

Explanation:

The heat absorbed in the process (Q) can be written as:

Q = mcΔT

Where the heat is 5,91x10⁵J, m is mass of water (2150g), c is specific heat of water (4,184J/g°C). And ΔT is change in temperature (100°C - x). Replacing:

5,91x10⁵J = 2150g×4,184J/g°C×(100°C - x)

5,91x10⁵J = 899560J - 8995,6J/°Cx

-3,0856x10⁵J = - 8995,6J/°Cx

34,3°C = x

Thus, initial temperature of water was 34,3°C

I hope it helps!

3 0

3 years ago

A balloon at 30.0°C has a volume of 222 mL. If the temperature is increased to 56.1°C and the pressure remains constant, what wi

svp [43]

Answer:

415.15 mL

Explanation:

To solve the statement, you can use the law of Charles - Gay Lussac, which states that "the volume of gas is directly proportional to its temperature at constant pressure." Mathematically:

$\frac{V1}{T1} = \frac{V2}{T2} = Constant$

You can calculate the volume V₂ Clearing it from the equation and replacing the values granted by the statement to perform the calculation:

V₂ = V₁ x T₂ / T₁ = 222 mL x 56.1 ° C / 30.0 ° C = 415.15 mL

Therefore, the gas at 56.1 ° C will occupy a volume of 415.15 mL

7 0

3 years ago

Atom , classify ithelppoppppoeowiie​

Atom , classify ithelppoppppoeowiie