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2 years ago

100 PTS+BRAINILIEST: Why does it get colder as you go higher through the atmosphere, if you are getting closer to the sun??

Chemistry

2 answers:

sattari [20]2 years ago

8 0

Answer/Explanation:

Heat from the sun hits the ground and is absorbed. The higher you go, it gets more colder due to the fact that the air doesn't hold onto the radiation as it goes straight through the ground, which is why the top of mountains are very cold, and people are able to die in minutes.

Nutka1998 [239]2 years ago

7 0

As you go higher, there are less air molecules and matter therefore meaning there is a lower pressure pushing down on you. Plus, when it is lower that means the particles will do some work meaning it will lose energy and when energy decreases so does the temperature and we define temperature as the average energy of the particles, in simpler words: When the pressure gets lower, the temperature also will get lower, which is why the higher you are the air temperature will get lower, and the lower you are the air temperature will get higher.

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When a reaction occurs between atoms with ground state electron configuration 1s2 2s1 and 1s2 2s2 2p5 the predominant type of bo

fenix001 [56]

Answer: The bond formed between the elements will be ionic bond.

Explanation: We are given two elements having electronic configurations:

Element 1: $1s^22s^1$

Element 2: $1s^22s^22p^5$

Element 1 can easily loose 1 electron to attain stable electronic configuration and Element 2 can accept 1 electron to attain stable electronic configuration.

For these elements, there will be a complete transfer of electron from Element 1 to Element 2. Hence, this will form a ionic bond.

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3 years ago

Determine the volume of fluid in the graduated cylinder shown.

Sladkaya [172]

Answer:

22.5 mL

Explanation:

We are given an amount of a fluid in a graduated cylinder and required to determine its volume.

Liquids always take the shape of the container they are placed in. In the graduated cylinder shown, note how the top of the fluid curves downwards. The volume of the liquid is usually determined at the bottom of this curve or what is called the meniscus.

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3 years ago

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3 years ago

Solution A is a 1.00 L buffer solution that is 1.188 M in acetic acid and 1.188 M in sodium acetate. Acetic acid has a pKa of 4.

Tomtit [17]

Answer:

pH change is -0.07

Explanation:

Using H-H equation for acetic acid:

pH = pKa + log [Acetate salt] / [Acetic acid]

Replacing:

pH = 4.74 + log[1.188M] / [1.188M]

pH = 4.74

The HCl reacts with sodium acetate producing acetic acid, thus:

HCl + CH₃COONa → CH₃COOH + NaCl

That means the final moles of sodium acetate are initial moles - moles of HCl and moles of acetic acid are initial moles + moles of HCl.

As the volume of the buffer is 1.0L, initial moles of both substances are 1.188moles. After reaction, the moles are:

sodium acetate: 1.188mol - 0.1mol = 1.088mol

Acetic acid: 1.188mol + 0.1mol = 1.288mol

Using again H-H equation:

pH = 4.74 + log[1.088M] / [1.288M]

pH = 4.67

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3 years ago

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