how can mass help identify an unknown substance

Answers

Answer 1
You can identify an unknown substance by measuring its density and comparing your result to a list of known densities. Density = mass/volume
Answer 2

Answer:

Explanation:

You cannot use mass to tell one substance from another.

two very different objects can have the same mass.


Related Questions

if 28% of the bases in a DNA strand are guanine, what percentage are thymine

Answers

Answer:

22%

Explanation:

According to Erwin Chargaff in his complementary base pairing rule, a DNA molecule consists of four nucleotide bases that pair with one another in the follow order: Adenine (A) to Thymine (T), and Guanine (G) to Cytosine (C).

According to Chargaff, the amount of Adenine in the DNA equals the amount of Thymine while the amount of Guanine in the DNA equals the amount of Cytosine. The sum of all the bases equals 100%. That is;

A + T + G + C = 100%

In this question, if 28% of the bases in a DNA strand are Guanine, the amount of Cytosine will also be 28%. Hence,

28% + 28% + A + T = 100

56% + A + T = 100

A + T = 100% - 56%

A + T = 44%

Since, A = T

A/T = 44/2

A/T = 22%

Hence, the amount of Thymine in the DNA strand will be 22%

When two plates slide past each other, what kind of plate boundary is
that?

A.Convergent
B.Divergent
C.Transform

Answers

Answer:

C. Transform

Explanation:

A transform plate boundary occurs when two plates slide past each other.

The burning and cutting of the trees will affect the carbon cycle by adding___________ to the atmosphere in the case of burning the trees and by not removing enough __________ from the atmosphere in the case of cuting the trees.

Answers

Answer:

The burning and cutting of the trees will affect the carbon cycle by adding carbon dioxide to the atmosphere, in the case of burning the trees and by not removing enough carbon dioxide from the atmosphere in the case of cuting the trees.

Explanation:

When burning and cutting down trees, these actions significantly alter the carbon cycle, adding carbon dioxide in the case of burning trees and preventing said carbon dioxide from being eliminated when cutting down the trees that, through the process of photosynthesis, are responsible for cleaning the atmosphere transforming carbon dioxide into oxygen.

Where these processes lead to carbon cycle stagnation in the short and long term.

WILL GIVE BRAINLIEST!!!!!!
An amino acid is to a polypeptide as:

glycogen is to glucose.

testosterone is to a steroid hormone.

a phospholipid is to a plasma membrane.

a nucleotide is to a nucleic acid.

Answers

The second option, but please correct me if I'm wrong.

Which of the following statements are true? (Select all that apply.)
Government health insurance plans are typically more expensive than private plans.
Private health insurance plans are typically more expensive than government plans.
Government health insurance plans target specific groups of patients, such as the elderly, veterans,
or children.
Private health insurance plans target specific groups of patients, such as the elderly, veterans, and
children

Answers

Answer:b and c

Explanation:

Edg 2020

The true statements are:

Government health insurance plans target specific groups of patients, such as the elderly, veterans, or children.

Private health insurance plans target specific groups of patients, such as the elderly, veterans, and children.

These sentences properly describe government and private health insurance. Medicare and Medicaid cover the elderly, low-income, and other categories. Insurance companies offer private health insurance plans to certain groups with varied coverage options and costs based on demographics and demands.

The question does not provide enough information to compare government and private health insurance costs. Coverage, geography, age, and individual circumstances affect costs. Thus, comparing government and private plan costs is inaccurate.

Learn more about health insurance, here:

https://brainly.com/question/14876522

#SPJ6

Explain the connection between the oxidation of water in photosystem II of the light-dependent reactions and the synthesis of glyceraldehyde-3-phosphate in the light-independent reactions.

Answers

Answer:

Please find the explanation below

Explanation:

This question is describing the processes involved in photosynthesis. In the light-dependent stage of photosynthesis, specifically photosystem II (PSII), water is oxidized in a process called PHOTOLYSIS OF WATER. This process produces electrons and Hydrogen ions (H+). The electrons produced via this process is accepted by NAD+ to yield NADH.

The NADH is an electron carrier produced during the light-dependent stage and used to reduce 3-phsophoglycerate (PGA) produced in the light-independent stage to glyceraldehyde-3-phosphate (G3P).

Photosynthesis

Use respiration in a sentence.






Answers

Answer:

Respiration is one of the chemical reaction that happens in all living cells.

Explanation:

Answer:

rhwheveeyeweuxeyeyeyheve

What does the Monosaccharide do for the human body ?

Answers

A monosaccharide commonly known as simple sugar is the simplest form of carbohydrates. Major function of monosaccharides is its use of energy within living organisms.Glucose is a commonly known carbohydrate that is metabolized within cells to create fuel. In the presence of oxygen, glucose breaks down into carbon dioxide and water, and energy is released as a byproduct

What makes producers so unique compared to other organisms in any ecosystem?
A. They are the only organisms capable of capturing energy.

B. They are the only organisms that are green.

C. They can recycle nutrients and water.

D. They can take energy from other organisms.​

Answers

Answer:

A

Explanation:

In ecology, we define producers as organisms that are able to make their own food through photosynthesis or chemosynthesis. ... An organism that cannot make its own food cannot be a producer in ecology by definition.

is centrioles a plant or animal cell?​

Answers

Answer:Animal cells but some plant cells also have it.

Explanation:

which of the following can lower the carrying capacity of a particular area?

Answers

Answer:

honestly I think its C smaller organisms .I could be completely wrong so keep that in mind

Which renewable energy source would be MOST appropriate for lands near a flowing stream or river?
microhydro
geothermal
wind energy
O biofuels

Answers

Answer:

microhydro

Explanation:

just look at a picture lol. Also I got it right on a test :)

Answer:

microhydro

Explanation:

What abiotic and biotic factors are used to classify biomes?

Answers

Answer:

Abiotic factors are the physical and chemical factors that determine the characteristics of a biotope: luminosity, pressure, temperature, humidity, salinity, etc. ... Biotic factors are those related to living beings that inhabit a biotope and the relationships that are established with each other.

Explanation:

can someone help me asapppp

Answers

Answer:

Am I supposed to tell you if it's right or wrong? or what...??

Explanation:

Answer:

C

Explanation:

The Law of Segregation states that: Question 6 options: Dominant traits will segregate with other dominant traits Genes segregate equally into gametes Recessive traits always segregate together Genes do not influence each other with regard to sorting into gametes

Answers

Answer:

Genes segregate equally into gametes

Explanation:

Gregor Mendel, due to his contribution to genetics, is referred to as the FATHER OF GENETICS. Among his contribution is the principles that governs inheritance in organisms. One of those principles is LAW OF SEGREGATION.

LAW OF SEGREGATION states that the alleles of a particular gene will separate into gametes in an equal manner. For example, in a gene Aa, each gamete produced by the organism with this gene will contain either allele A or allele a in equal proportion.

When and why does aerobic respiration occur during cellular respiration in plants?

Answers

A :-) This only happens during the day, and at night the plant only undergoes respiration, not photosynthesis. Aerobic respiration happens when there is plenty of oxygen (normal level in air is 21%). Anaerobic respiration happens where there is less oxygen than this.

If a man and woman are tested and found to be carriers of the sickle cell what is the probability that they will have a child that has sickle cell anemia

Answers

Answer: If both parents have SCT, there is a 50% (or 1 in 2) chance that the child also will have SCT if the child inherits the sickle cell gene from one of the parents.

Answer:

negative

Explanation:

because most the time two positives make a negative

Robert Hooke made this drawing after using a microscope to observe dead cork bark. What does Hooke's drawing show? A. Cell division
B. Cell organelles
C. Living cells
D. Cork cells​

Answers

Answer:

THE Awnser is D

Explanation:

A.P.E.X

Answer:

d

Explanation:

dead cork cells

Which statement is true about Earth's poles?
A. Only the north magnetic and geographic poles wander.
B. Only the magnetic poles wander
C. The geographic poles both wander
D. The magnetic poles stay in the same place.

Answers

Answer: C: They both wander

Explanation: A P E X

Which of these correctly complements the molecule with its function? a Carbohydrate—manufactures cell membranes b Nucleic acid—supplies energy to cells c Lipid—stores genetic information d Protein-provides structure; builds muscle

Answers

Answer:

D

Explanation:

What amino acid sequence is produced by the following DNA template strand? 3’ ATG CCC TTA GAT GGT AAC 5’

Answers

Wouldn’t it be as follows

TAC GGG AAT CTA CCA TTG

Because you have to match the other strand

Which of the following is the source of the carbon in sugar produced during photosynthesis?

A) carbon dioxide
B) water
C) rubisco
D) ATP

Answers

A) Carbon dioxide is the source of carbon
I’m sure it’s carbon dioxide

which substance are necessary for the synthesis of most material in organism

Answers

Answer:

yes

Explanation:

Enzymes are substances necassary for the synthesis of most material in organisms

Please help me with this work sheet

Answers

i cant really see it try to take another one

How do we detect the cosmic microwave background radiation?
by looking for radiation at the blue end of the spectrum

through radio telescopes

by looking for a glow in the night sky

through magnifying glasses

Answers

Answer:

Through radio telescopes :)

Explanation:

Answer:

through radio telescopes

can someone please help me

Answers

Answer:

Explanation:

ionic bonds

Answer:

C) hydrogen bonds

Explanation:

DNA is constructed of two strands, consisting of sugar molecules and phosphate groups. Between these two strands are nitrogen bases, the compounds which make up organisms' genes, with hydrogen bonds between them. Those hydrogen bonds have sometimes been seen as crucial to holding the two strands together

Compare and contrast the structure and function of lysosome and golgi

Answers

Lysosomes are membrane-bound spherical vesicles which contain hydrolytic enzymes that can break down virtually all kinds of biomolecules. At the same time, Golgi bodies or Golgi apparatus is part of the cellular endomembrane system,which packages proteins into membrane-bound vesicles inside the cell before the vesicles are sent to their destination. Lysosomes are isolated round or oval vesicular bodies while the Golgi bodies exist in a specific stack-like manner comprising of cisternae, tubules and vesicles.

While the Golgi apparatus is believed to originate from the endoplasmic reticulum, lysosomes are one of the vesicular packages of the Golgi cisternae. Golgi complex produces lysosomes as well as other secretory granules. Newly synthesized proteins, lipids, carbohydrates in association with the ER, are transported to the bioregion of the complex. They are sorted out and suitably modified in this complex; they are then packed in vesicles at trans region. Some of the granules contain hydrolytic enzymes and form lysosomes, while others are secreted for respective functions.

Which of the numbered labels is pointing to an energy producing organelle in the diagram?
A. 2
B. 9 and 10
C. 3
D. 6

Answers

Answer: 3

Explanation:

because it’s the mitochondria

Answer:

The answer is c

Explanation:

the answer is c because the thing that is labeled three is the mitochondria

Which of the following statements is true?

Organs are more complex than the tissues they are made from.
Carbon dioxide is absorbed by the lungs and stored in alveoli.
Running, jumping, and biking are controlled by the cerebrum.
The heart and lungs do not need each other to supply the body with oxygen.

Answers

Answer:

It is Running, jumping, and biking are controlled by the cerebrum.

Explanation:

I had question this on my test last week

Answer: Organs are more complex than the tissues they are made from.

Explanation:  

which of the following is identical in a skin cell and a muscle cell from the same individual?
a. cellular shape
b. amount of ATP
c. genetic material
d. cell function​

Answers

Answer:

C

Explanation:

skin and muscle cells are similar in that they contain the same DNA

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