Okay let me settle this now... I, just as most of you, hate the giant long explanations, most people are here for the answer, so I'll do us all a favor here... It's 14.
B. finding a comet
C. examining the structure of plant cells
D. building a garage
2. Which of the following procedures involves a physical change in one of the substances?
A. creating salt by reacting sodium metal and chlorine gas
B. allowing a nail to rust
C. building a model rocket propelled by mixing baking soda and vinegar
D. grinding chalk into a fine powde 3. You have three molecules of glucose (3C6H12O6). How many oxygen atoms do you have?
A. 1
B. 3
C. 6
D. 18
Question 1:
The right answer is A
Chemistry is a science of experimental nature that studies the composition of matter and its transformations.
Chemistry is thus interested in the elements that constitute matter (atoms, ions, etc.), in their properties and in the chemical bonds that can be created between them.
Question 2:
The right answer is A
Sodium chloride is an ionic chemical compound of the formula NaCl. It is more commonly called table salt or cooking salt, or simply salt in everyday language.
It is clear that it exists in the form of solid salts.
during his training, there was a physical change of sodium (metal) and chlorine (gas) into a salt.
Question 3:
This question is a little bit tricky
If we assume that the question is aimed at finding the total number of oxygen in all three molecules together, the answer is 18.
A glucose molecule is made up of 6 atoms of oxygens if we have three glucose molecules (assuming that they are bound), we multiply by 3 and this gives us 18 oxygen atoms.
b. Chromosomes are threadlike structures that carry genetic information.
c. Humans receive the majority of their chromosomes from their mother.
d. Chromosomes are arranged in 20 distinct pairs in the human body.
Answer: its B actually
Explanation:
Answer:
B: Chromosomes are threadlike structures that carry genetic information.
Explanation:
on edge2021!! hope this helps!!~
Flood is the result of the migration of the boundary between land and water. The spheres involved in flood are atmosphere, lithosphere and hydrosphere.
Spheres of earth - There are four levels of the Earth known as spheres that are hydrosphere (water), lithosphere (land), atmosphere (air) and biosphere (plants and animals).
Flood can have both positive and negative impact on the biospheres of the region. As the water drawn significantly, it destroy the habitats of the terrestrial organisms.
Positive impact is it can bring majority of the nutrients downstream which can help in better production of the crops.
Flood affects hydrosphere by destroying the water bodies such as rivers and lakes. Also it pollutes the water which makes it difficult for the survival of the marine or aquatic animals
So, the spheres involved in flood are atmosphere, lithosphere and hydrosphere.
To know more about spheres :
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Answer:
well... since i know everything, i would say that this is bad because people can drown and we do not want people to die before they can vote.
The fluctuations in abiotic cycles can influence the population in many ways. The population of a particular area depends on the various abiotic cycles such as nitrogen cycle, carbon cycle, phosphorous cycle. The changes in these cycles affects the life of population. Fluctuation results in hibernation of species. Some of the organisms migrate to another place in search of normal environment. The early breeding results in creating problems. It disturbs the ecological balance by using the limited supply of resources. The fluctuation in phosphorous cycle can affect the aquatic population. As the dependency of population on abiotic cycles is as important as the biotic factors the fluctuations can cause many problem.
a. saccharides
b. nucleotides
c. fatty acids
d. amino acids
Answer:
amino acids
Explanation:
Saccharides are for polysaccharides
Nucleotides are for DNA
Fatty acids are for lipids
Amino acids line up in a chain during translation into a protein.
Proteins are made up of long chains of building blocks called amino acids. There are 20 different amino acids that can be combined to create a protein. The sequence of these amino acids determines the protein's structure and function.
Proteins, which are integral to bodily processes, are composed of long chains of building blocks known as amino acids. There are 20 different types of amino acids that can be combined to make a protein. The sequence of the amino acids determines the structure and function of each protein. Unlike saccharides, which make up carbohydrates, nucleotides that build up nucleic acids, and fatty acids which are the building blocks of lipids; amino acids are unique in their role as the building blocks of proteins.
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b. peptide
c. disulphide
d. single covalent
e. double covalent