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Solnce55 [7]
2 years ago
14

On a warm summer day, a group of friends went swimming at the pool. They experienced hot, humid air at noon; but a few hours lat

er the temperature dropped, and a thunderstorm occurred. Which explanation below BEST describes what caused this event?
Chemistry
1 answer:
Nadya [2.5K]2 years ago
6 0

Answer:

hello dear, the question that you posted is incomplete but not to worry I will give you some key points in order to be able to answer this kind of question.

Explanation:

So, since we do not have the complete question, let us proceed this way; we are given that the season is a warm SUMMER day and the atmospheric condition or the weather is HOT, HUMID at noon but later in some few hours the TEMPERATURE DROPPED and then, a thunderstorm occurred.

(1). The fact that the weather is in a humid condition that is relative humidity will make it possible to absorb more moisture.

(2). Also, we have a HOT weather which means that the rate at which EVAPORATION take place is high.

(3). The drop in temperature means that water molecule has been absorb from the surface of the earth which also includes the water molecules that would have adhere to their bodies. The air expands and move up and as the air move up they become colder and later condensed and this is the cause of the THUNDERSTORM -- a conventional rainfall.

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kompoz [17]

Answer:

The snow gains heat to melt (endothermic), then the water releases heat to freeze (exothermic). ... Beaker becomes hot because the reaction is pushing heat out from itself onto .... solidification (ΔHsolidification) when 10.00kJ of energy are lost as 30.00g of water.

Explanation:

3 0
2 years ago
Using only the following elements P, Br, and Mg, give the formulas for:A. an ionic compound. B. a molecular compound with polar
Talja [164]

Answer:

<h2>1. Ionic compound- MgBr_2</h2><h2>2. Polar molecular compound- PBr_3</h2>

Explanation:

Mg is a metal that has 12 atomic numbers and thus its electronic configuration is 1s^22s^22p^63s^2. The outer most shell of this element has 2 electrons so it loses 2 electrons and thus form Mg^2^+ ions. Br is a nonmetal and has 35 atomic number so its electronic configuration is 1s^22s^22p^63s^23p^64s^23d^1^04p^5. Since its outermost shell has 7 electrons so it can accept one electron and thus forms Br^-. So magnesium ion and bromide ion combine and forms an ionic compound MgBr_2.

P is also a nonmetal and combine with Br with covalent bond and due to electronegativity differences form polar covalent compound such as PBr_3.

8 0
1 year ago
Which of the following describes a scenario in which the molecular geometry would have the smallest bond angle(s)? (A) four bond
maw [93]

Answer: The correct answer is "B" two bonding domains(or bonding pairs) or two non bonding domains(or lone pairs)

Explanation:

Molecular geometry/structure is a three dimensional shape of a molecule. It is basically an arrangement of atoms in a molecule.It is determined by the central atom, its surrounding atoms and electron pairs.According to VSEPR theory, there are 5 basic shapes of a molecule: linear, trigonal planar, tetrahedral, trigonal bipyramidal and octahedral.

A)Four bonding domains and zero non bonding domains: shape is tetrahedral and bond angle is 109.5°

B)Two bonding domains and two non bonding domains(lone pairs): shape is bent and bond angle is 104.5°

C)Three bonding domains and one non bonding domain: shape is trigonal pyramidal and bond angle is 107°

D)Two bonding domain and zero non bonding domain: shape is linear and bond angle is 107°

E)Two bonding domain and one non bonding domain: bent shape and bond angle is 120°

F)Three bonding domains and zero nonbonding domain: shape is trigonal planar and bond angle is 120°

Hence Two bonding domains and two non bonding domains have the smallest bond angle.

6 0
2 years ago
A metal tank containing hydrogen gas has a pressure gauge that reads 575 psi. What is causing the pressure inside of the tank?
liberstina [14]

Answer:

Compression of hydrogen gas within the container.

6 0
2 years ago
Identify the precipitate(s) formed when solutions of na2so4(aq), ba(no3)2(aq), and nh4clo4(aq) are mixed.
Lostsunrise [7]

Answer : BaSO_{4} will be the precipitate which will be formed.


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7 0
2 years ago
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