Answer:
by it helps to make our living comfortable. it help to know the accurate weight of the quantity. it helps to know about the earth, solar system, structures of earth, etc.
Suppose you have a beaker of sugar and a beaker of salt. They are unlabeled and the white crystals look identical. Your assignment is to identify each one. Tasting would make identification easy, but you should never taste anything in a science lab. Instead, you can use scientific knowledge and investigation to help you identify each substance.
Substance Formula Melting Point Conductivity
Table salt NaCl ? ?
Table sugar C12H22O11 ? ?
Examine the chemical formulas for salt and sugar given in the table. What do they tell you about what type of bonding is present in each compound?
A. Both molecules contain ionic bonds.
B. Both molecules contain covalent bonds.
C. NaCl contains a covalent bond, and C12H22O11 contains ionic bonds.
D. NaCl contains an ionic bond, and C12H22O11 contains covalent bonds.
As per the given scenario, NaCl contains an ionic bond, and [tex]C_1_2H_2_2O_1_1[/tex] contains covalent bonds. The correct option is D.
What is the difference between ionic and covalent bonding?An atom can primarily participate in two types of bonding: covalent and ionic. The sharing of electrons between two or more atoms is referred to as covalent bonding.
When two or more ions come together and are held together by charge differences, ionic bonds form.
Covalent bonds are formed when two nonmetals come together, whereas ionic bonds are formed when a metal and a nonmetal come together.
Molecules formed by covalent bonds have a lower melting point than those formed by ionic bonds. The boiling point has the same relationship.
Electrons are basically involved in the formation of both ionic and covalent bonds.
NaCl is possess ionic bonding between sodium and chlorine ions, while table sugar have covalent bond.
Thus, the correct option is D.
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Which of the following statements is true about vaccine?
A. Vaccine is a blood plasma.
B. Vaccine is a white blood cell.
C. Vaccine is a type of antibody. D. Vaccine is a weakened or dead pathogen.
Answer:
vaccine is a type of antibody
Can I have help pls I do not understand this
pls help
Me with the right answer
Answer:es la b
Explanation:por que los homungulos no hacen parte e de eso
Answer:
Now I do not know for sure but I think it might be D, or C. I'm sorry I couldn't be of more help by specifying it.
Explanation:
Hii.
Good morning sandhya..
what is photosynthetic ..?
Answer:
[tex]\huge\mathcal{\purple{A}\green{n}\pink{s}\blue{w}\purple{e}\green{r}}[/tex]
PHOTOSYNTHESIS IS A PROCESS IN WHICH GREEN PLANTS PREPARE THEIR OWN FOOD BY WATER AND CARBON DIOXIDE IN THE PRESENCE OF CHLOROPHYLL AND SUNLIGHT.
[tex]\rule{255mm}{2mm}[/tex][tex]\rule{255mm}{2mm}[/tex][tex]\rule{255mm}{2mm}[/tex][tex]\rule{255mm}{2mm}[/tex]
Todas las celulas contienen organelas?
Answer:
Cada célula de su cuerpo contiene orgánulos (estructuras que tienen funciones específicas). Al igual que los órganos del cuerpo, cada orgánulo contribuye a su manera a ayudar a que la célula funcione bien como un todo. El núcleo, las mitocondrias y los cloroplastos son todos orgánulos. ... Algunos orgánulos se encuentran solo en algunos tipos de células.
Explanation:
de nada
RNA differs from DNA in the type of a) purines & pyrimidness b) sugars & Purmes c) sugar & pyrimidness. dl pyrimidness (please give right answer only)
Answer:
There are two differences that distinguish DNA from RNA: (a) RNA contains the sugar ribose, while DNA contains the slightly different sugar deoxyribose (a type of ribose that lacks one oxygen atom), and (b) RNA has the nucleobase uracil while DNA contains thymine.
So, the answer is
Explanation:
As temperature rises from 25 degrees to 60 degrees, the material heat and its kinetic energy as the material goes through vaporization to become a gas.
1. absorbs, increases
2. releases, does not change
3. multiplies its, is divided
4. remains the same, decreases
Answer:
1
Explanation:
the material absords heat ( so the temperature increase or the heat can be use to increase kinetic energy)
increase its kinetic energy
what are the reasons for the adaptation of organisms to the environment
Answer:
The reasons for the adaptation of organisms to the environment are
to adapt to their habitat to be able to survive.
Hope it helps you.Answer:
All organisms need to adapt to their habitat to be able to survive. This means adapting to be able to survive the climatic conditions of the ecosystem, predators, and other species that compete for the same food and space.
Which health claims decreased in number during each year listed?
Explanation:
Health claims describe a relationship between a food substance (a food, food component, or dietary supplement ingredient), and reduced risk of a disease or health-related condition.
An example of an authorized health claim is, "Adequate calcium and vitamin D as part of a healthful diet, along with physical activity, may reduce the risk of osteoporosis in later life."
Which is NOT a condition required for allele frequencies to remain the same over time?
a. natural selection
b. random mating
c. very large population
d. absence of mutation
Statement
true or False
Our solar system contains planets, moons, smaller space bodies, the sun, and numerous stars.
why do you think this way?
List all the ways you can think of that carbon passes from the biosphere to the lithosphere
Answer:
Carbon is stored on our planet in the following major sinks (1) as organic molecules in living and dead organisms found in the biosphere; (2) as the gas carbon dioxide in the atmosphere; (3) as organic matter in soils;
why is saline soil a problem
Answer:
Saline soil is a problem because high osmotic stress, nutritional disorders and toxicities.
what are the effects of changes in one of earth four spheres on each of the other spheres?
Answer:
An event can cause changes to occur in one or more of the spheres, and/or an event can be the effect of changes in one or more of Earth's four spheres. This two-way cause and effect relationship between an event and a sphere is called an interaction. Interactions also occur among the spheres.
Hope it helps you.a point where the plate boundaries meet
Answer: a transform or a lateral fault
Explanation:
Which statement accurately describes the variables in this study?
Answer:
write full question please
Which of the following
is not a type of fatty acid?
Answer:
which one ?? where are the options????
Phenyl acetic acid is not a type of fatty acid (option D
What is a fatty acid?A fatty acid is a long-chain carboxylic acid. It consists of a hydrocarbon chain with a carboxyl group at one end. Fatty acids are found in animal and plant fats, and they are an important part of the human diet.
Phenyl acetic acid is not a fatty acid because it does not have a long carbon chain. It is a short-chain carboxylic acid with only six carbon atoms. Short-chain carboxylic acids are not considered to be fatty acids.
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Complete question:
Which of the following is not a type of fatty acid?
Stearic acid
Palmitic acid
Propionic acid
Phenyl acetic acid
plants can change the main product of photosynthesis into other substances. Name two of these substances and describe the function of each
Answer:
The products of photosynthesis are glucose and oxygen. Glucose is used by plants for energy and to make other substances like cellulose and starch. Oxygen is released as a byproduct/waste product. In cellular respiration, oxygen is used to break down glucose, releasing chemical energy and heat in the process.
Explanation:
Specifically, plants use energy from sunlight to react carbon dioxide and water to produce sugar (glucose) and oxygen. Many reactions occur, but the overall chemical reaction for photosynthesis is: Carbon Dioxide + Water + Light yields Glucose + Oxygen
Which is an observation?
1.Data and information you gather usually by using
your senses or a tool
2.Conclusions based on evidence
Explanation:
Which is an observation?
l think number 1 is write
Dalton’s theory was identified using
light microscope images of atoms.
the experimental results of other scientists.
water vapor and air experiments.
Answer:
Explanation:
Actually it was the experimental results of other scientists. The main stems of the theory was the indivisibility of small spheres (his image) that represented the elements he knew which reacted with other elements.
They seemed to give the same ratios in reactions (definite proportions) and multiple whole number ratios. Look up Lavoisier.
the major causes of ocean pollution are oil spills and sewage treatment
true or false
answer quick !!
Answer:
true
Ocean pollution is caused by the introduction of toxic pollutants such as industrial wastes , chemicals, oil spills and plastic litter.
There are 3 main categories of environmental problems that have come about because of the population growth. What are they and explain how the growth of the population has brought about each one?
Answer:
i)declination of resources
ii) air, water and land pollution
iii) global warming
Explanation:
As we all know that population is increasing day by day, all the country of the world are facing rapid population growth.we are facing many problems, the population growth is increasing day by day, the more the population, the more resources we need due to this, the resources is decreasing day by day, we need more resources as there is more population, the increasing population makes more pollution due to this global warming is increasing. We know that there is no more more resources in our world if the resources is finished in this day the future generation will not be able to survive and will not be able to use such resources.we should prevent such resources for future generation also the future generation should get the chance to use such resources .the pollution is increasing day by day .we should control it .the main thing is that we should control the rapid population growth population growth should be controlled due to this global warming is increasing which is very dangerous leading to the declination of ozone layer due to which the harmful rays of sun may enter the earth which may cause various problems in us and cause various diseases due to which we may die.the main thing is that we should stop the population growth, we should conduct public awareness programmes and many more programmes to educate people. Population growth also creates deforestation as the number of people are increasing day by day they need more place to live ,they need more Land due to this they cut down the trees of forest and used to make houses there due to which deforestation takes place. we all know that deforestation is the process of cutting down trees. so the tree should not be cut down as it is the source of oxygen for all creatures living in this whole world and the main thing is that we should provide education to the children and the youth and many more. if we are educated we can stop such population growth. so the main thing is that we should stop population growth by giving education. Education is the only one way to stop such population growth.
Define hydrophilic.
How does that change the relationship that phospholipids have to water?
What is the function of steroid? Give an example of a steroid.
use the following terms in the same sentence:prokaryotic,nucleus and eukaryotic
While eukaryotic cells have a membrane-bound nucleus, prokaryotic cells do not.
hope this helps:)
state the enzymes that catalyses the digestion of starch and fats
Let us Practice
Sheila bought a hamster in a small pet shop. To feed it properly, she
needs to know its weight. If the hamster has a mass of 190.0 g, what is
its weight?
Answer:
190*10=1900N
Explanation:
it is mentioned that its mass is 190g. So the weight must be equal to the product of mass and acceleration due to gravity.
taking acceleration due to gravity 10m/s2 the answer must be 1900N
But the accurate vale is 9.8m/s2.
also let me know if the answer was correct.
thanks
what does the term resolution mean
Answer:
the process of reducing or separating something into constituent parts or components.
different between annual plant and Biennial plants
Answer:
Annual plants germinate, bloom, set seed and die all in one year. Biennial plants have a life cycle of two years so they germinate and grow one year, bloom and die the following. Everything which lasts longer than two years is Perennial, which in practical terms usually means it grows and flowers for many years.Explanation:
Hopes this helps. Mark as brainlest plz!¿Qué ocurre cuando inspiramos?
Answer:
Cuando respiramos, el diafragma se mueve hacia abajo, en dirección al abdomen, y los músculos de las costillas empujan a las costillas hacia arriba y hacia afuera. Esto hace que la cavidad torácica se agrande y tome aire a través de la nariz y la boca para enviarlo a los pulmones.