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Nina [5.8K]
3 years ago
5

Bài 19 với ạ, ai giúp em với ❤️❤️❤️❤️❤️

Chemistry
1 answer:
Bumek [7]3 years ago
3 0

Answer:

we're are u from

Explanation:

also the writing from that paper look really cool

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A cylinder has a volume of 30 cubic centimeters. The gas inside is at a temperature of 420 K and a pressure of 110 kPa. Find the
oksian1 [2.3K]

Answer:

The answer to your question is T2 = 610.9 °K

Explanation:

Data

Volume 1 = V1 = 30 cm³

Temperature 1 = T1 = 420 °K

Pressure 1 = P1 = 110 kPa

Volume 2 = V2 = 40 cm³

Temperature 2 = T2 = ?

Pressure 2 = P2 = 120 kPa

Process

To solve this problem use the combined gas law.

               P1V1/T1 = P2V2/T2

-Solve for T2

               T2 = P2V2T1 / P1V1

-Substitution

                T2 = (120 x 40 x 420) / (110 x 30)

-Simplification

                 T2 = 2016000 / 3300

-Result

                   T2 = 610.9 °K

5 0
3 years ago
Which of the following describe a neutron?
dalvyx [7]
Neutron is subatomic particel with with mass approximately one atomic mass unit, and neutron mass slightly larger than proton.
neutron have natural charge and i suppose that the mass may be called as: a. mass number of 1.

hope this help
6 0
4 years ago
Which correctly describes the relationship between genes and chromosomes?​
Vlada [557]

Answer:

Chromosomes are structures within cells that contain a person's genes.

Explanation:

Genes are segments of deoxyribonucleic acid (DNA) that contain the code for a specific protein that functions in one or more types of cells in the body. Chromosomes are structures within cells that contain a person's genes. Genes are contained in chromosomes, which are in the cell nucleus.

6 0
3 years ago
Which of these is a mixture? A) milk B) salt C) sulfuric acid D) carbon dioxide
Charra [1.4K]

The correct answer is A . MIlk is a mixture because pure substances were combined together without formation of bonds, hence it would be easy to separate the substances. On the other hand, salt, sulfuric acid and carbon-dioxide are made from bonding between elements in the periodic table to form compounds. Salt is formed through bonding between Na and Cl atoms, while sulfuric acid H_2SO_4 is  made from bonding H^+ and SO_4^-^2 ions. Carbon-dioxide CO_2 is made from bonding between C and O elements. Compounds bond at a specific ratio while mixtures have no specific ratio of mixing.

7 0
4 years ago
Read 2 more answers
What is an homeostasis?
ladessa [460]

Answer:

it's a property of a cell, tissue and organisms that allows to maintain and regulate the stability and constancy to function properly

7 0
3 years ago
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