Answer:
Heterogeneous mixtures are substances not mixed together.
Explanation:
I hope that is right
Answer:
22g of He
Explanation:
Volume of gas at STP is given as :
Volume occupied(dm³) = number of moles x 22.4dm³mol⁻¹
In order to solve this given problem, we would first find the number of moles from the different masses of atoms and molecules given.
Number of moles =
Now, let us obtain the molar mass of the given atoms and elements:
For Ne; molar mass is the atomic mass = 20gmol⁻¹
He = 4gmol⁻¹
O₂ = (16 x2)gmol⁻¹ = 32gmol⁻¹
Cl₂ = (35.5x2)gmol⁻¹ = 71gmol⁻¹
Number of moles of Ne = = 1.1mol
Volume occupied by Ne at STP = 1.1 x 22.4 = 24.64dm³
Number of moles of He = = 5.5mol
Volume occupied by He at STP = 5.5 x 22.4 = 123.2dm³
Number of moles of O₂ = = 0.688mol
Volume occupied by O₂ at STP = 0.688 x 22.4 = 15.4mol
Number of moles of Cl₂ = = 0.3099mol
Volume occupied by Cl₂ at STP = 0.3099 x 22.4 = 6.94dm³
Answer:
c) Amino acids
Explanation:
Proteins are long-chain molecules made of amino acids. They are linked through a covalent peptide bond. Therefore, the option (c) is the correct answer.
Answer:
Some of these sentences both refer to the same term.
1. The epithelial membrane that lines the closed ventral cavities of the body. - 5. Makes up the pleura and pericardium. This is called the <u>serous membrane</u>.
2. The epithelial membrane that lines body cavities open to the exterior membrane
. - 4. Found lining the digestive and respiratory tracts. These statements refer to the <u>mucous membrane</u>.
3. Consists of keratinized stratified squamous epithelium. - <u>cutaneous membrane</u>.
6. Lines blood vessels and the heart. - <u>endothelium.</u>
Explanation:
All of these membranes are formed by epithelial tissue - one of the four basic tissues found in the human body, with important tasks that many times <u>give the organs they're part of their main function</u>.
<u>The epithelium can vary in shape and size in order to adapt to the necessities of the organ</u>. If the organ needs protection from abrasions, like the skin or the stomach, this tissue will have many layers and be called "<em>stratified epithelium</em>". On the other hand, an organ with the function to exchange substances, like the blood vessels or the alveoli, will have only one layer of epithelium, to ease the diffusion of gases and other molecules.
The other three basic tissues are: connective tissue, muscle tissue, and nervous tissue.
Contained within the genetic material are the instructions for regulating and manufacturing the genes that control cellular function, but, it was not until the DNA that scientists began to perform a series of experiments that ultimately determined the genetic material and the basic structure of the molecule.
<h3>What is Genetic Material?</h3>
- A multicellular creature's somatic cells have similar genetic material, which regulates the composition of the organism.
- Since the genetic material can duplicate alongside the cell, new cells inherit the same genetic makeup as their parent cells.
- Chromosomes are where the genetic material is found, according to research on the structure and function of the genetic material.
- It wasn't known early on whether proteins or DNA carried the genetic information because chromosomes include both proteins and DNA.
- Because proteins lack the most crucial characteristic of genetic material, replication, Hershey and Chase's tests demonstrated that DNA, not proteins, was the genetic material.
To learn more about Genetic Materials refer to:
brainly.com/question/15172442
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