CHEMISTRY HIGH SCHOOL

When an inflated balloon is exposed to cold air,a. the temperature inside the balloon rises.
b. the pressure inside the balloon rises.
c. the volume of the balloon decreases.
d. the volume of the balloon increases

Answers

Answer 1
Answer: The correct answerwould be C. The volume of the balloon will decrease. As depicted in Charles’Law which states that volume and temperature are directly proportional to each other,when the pressure of the gas is at a constant. When this theory is applied, theballoon will decrease in volume when it is exposed to cold air because the gas pressureinside the balloon remains the same. It is easier to remember this concept withthe equation V/T = K where V is volume, T is Temperature and K is constantpressure. 

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In nature, rings with ____ carbon atoms are the most abundant

Answers

Answer:  Five and Six

Explanation:   In nature, usually we can observe the rings with 5 or 6 carbon atoms are most abundant.

First of all, the rings with 5 or 6 carbon atoms are the most stable rings which are not affected by any free energy factor or enthalpy factor or entropy factor.

Moreover 6 membered rings are found to be the most stable ones because of the extra stability provided by the term known as Aromaticity like Benzne is known to be most stable and most aromatic compound.

5 membered rings are found in our body as ribose sugar which makes the important nucleic acids which are RNA (ribose nucleic acids)and DNA(de oxyribose nucleic acids) .
In nature, rings with five to six carbon atoms are the most abundant

What does the atomic mass describe?a. The mass of the protons in the atom
b. The mass of the nucleus of the atom
c. The mass of the neutrons in the atom
d. The mass of the electrons in the atom

Answers

B., the mass of the nucleus of the atom.
Both the protons and the neutrons are inside the nucleus. The atomic number of an atom is the number of protons, and if you subtract the atomic number from the atomic mass you can find the number of neutrons an atom has. 
So, the mass of the protons plus the mass of the neutrons, which are both inside the nucleus, equals the atomic mass. 

Environmental science is the study of

Answers

Answer: Environment and the ecology.

Explanation:

The environmental science studies various aspects of environment involving the living and non- living components and their interaction. The ecology is the branch of environmental science which deals with the study of ecology in which involves the interaction of living beings with their non-living physical environment and with each other.
The environment and it's ecosystems.

The process of a material going through a change of state from a gas to a liquid is called _____. melting freezing condensation vaporization

Answers

Condensation is the change in state of matter from gas to liquid.

The process of a material going through a change of state from a gas to a liquid is called _____.

condensation

Plz solve this i need helpprozac C17H18F3NO is a widely used antidepresent that inhibits the uptake of sertonin by the brain. how many molecules are in 3 grams of prozac?

Answers

Molar mass prozac

C17H18F3NO = 309.33 g/mol

1 mol -------------- 309.33 g
x mol -------------- 3 g

x = 3 / 309.33

x = 0.00969 mol

1 mol ------------- 6.02x10²³ molecules
0.00969 --------- y molecules

y = 0.00969 * 6.10x10²³

y = 5.83x10^21 molecules

hope this helps!.

1. How did Dmitri Mendeleev deal with elements that had not yet been discovered?A. He left blanks for them in his periodic table, as he predicted they would be discovered.
B. He gave them names and properties and placed them in the table.
C. He created them in his laboratory and placed them in the table.
D. He ignored them, placing them in the table and shifting others when they were discovered. 2. Which of the following elements have properties similar to those of astatine (At)? A. F, Br, I B. Ar, S, P C. F, Ar, Ne D. Na, Mg, Al 3.What is true of the ionic size of the elements in a group as one moves from top to bottom in that group?
A. Ionic size stays the same within the group.
B. Ionic size does not vary in any predictable way within the group.
C. Ionic size decreases from top to bottom within the group.
D. Ionic size increases from top to bottom within the group.

Answers

The most sensible answer for the first qurstion is definitely A.He left blanks for them in his periodic table, as he predicted they would be discovered.
He couldn't just just imagine index and go with a flow, he left space for it in order to dicrover it through reactions.
What about the next question, the answer is A. F, Br, I, its properties similar to those of astatine (At).
The last one :D. Ionic size increases from top to bottom within the group.
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