Answers
Answer and Explanation:
An acid has a pH that is less than 7. A base has a pH that is greater than 7. Something that has a pH of 7 is neutral, but since it doesn't seem that the question is asking about neutral, you can ignore that for this problem.
Situation 1: Base
Situation 2: Acid
Situation 3: Acid
Situation 4: Base
Situation 5: Acid
Situation 6: Base
A. Water directly out of the tap has a pH of 7.2. When you add carbon dioxide (blow into the water), you get a pH of 5.1. This means that the addition of carbon dioxide makes water more acidic.
B. The most basic solution will have the highest pH. This means that it will be water with bleach added to it.
C. The most acidic solution will have the lowest pH. This means that it will be water with instant coffee.
Related Questions
A specific location in America produces electricity from fossil fuels and geothermal energy. The table below shows the amount of carbon dioxide in the atmosphere of the location from 1960 to 2000.
Year 1960 1970 1980 1990 2000
Carbon dioxide concentration (in parts per million by volume) 317 325 339 318 328
Based on the table, which of these conclusions is most likely correct?
Answers
Answer:
Between 1960 and 1970, there was an decrease in the use of geothermal energy.
Explanation:
Got it right on the quiz
On the basis of the table, the conclusion which is most likely to be correct is during 1960, 1970, and 1990, the amount of geothermal energy and fossil fuels was decreased so, less production of electricity.
What do you mean by Fossil fuels?Fossil fuels may be defined as fuels that are found in the Earth's crust and contain carbon and hydrogen, which can be burned for energy.
When the availability of fossil fuels and geothermal energy gets decreased during the years 1960, 70, and 90, the production of electricity decreased.
Therefore, on the basis of the table, the conclusion which is most likely to be correct is during 1960, 1970, and 1990, the amount of geothermal energy and fossil fuels was decreased so, less production of electricity.
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Order the measurements from smallest to
largest.
Parsec
Light-year
Meters
Astronomical Unit
Gigaparsec
Megaparsec
kilometers
Answers
In an experiment, Juanita wants to determine the effect of fertilizer on the growth of grass. what is the independent and dependent variables in this experiment?
Answers
Answer:
Independent Variable: Fertilizer
Dependent Variable: The growth of the grass
Explanation:
The independent variable is the thing you change in an experiment. The dependent variable is the thing that is affected by the independent variable.
dinfenfenfujefebfue.
Answers
what is 1 thing in common about epidemics, pandemics, and outbreaks?
Answers
Answer:
All of them are connected by some sort of widespread sickness or virus
Explanation:
Question 1 (1 point)
Identify the prokaryotic cell in the diagram below.
Question 1 options:
Diagram C
Diagram A
Diagram B
Diagram D
Question 2 (1 point)
Which type of cells can be found in unicellular and multicellular organisms and contains a nucleus and membrane organelles like mitochondria?
Question 2 options:
Eukaryotic
Archean
Bacteria
Prokaryotic
Question 3 (1 point)
A scientist discovers a new organism. It is a single cell and has no nucleus. How should this cell be classified?
Question 3 options:
Animal
Prokaryote
Plant
Eukaryote
Answers
Answer:
C
Explanation:
Answer: C
Explanation:
Purple flowers are dominant over white flowers. The parent generations includes two heterozygous parents. What are the phenotypes of these parent offspring?
Answers
Answer:
purple flowers, white flowers or a mix
Explanation:
parents are heterozygous
X x
X XX Xx
x Xx xx
XX = purple
Xx = mix
xx = white
how do enzymes take place in chemical reactions
a.no answer provided
b.enzymes increase the activation energy of that reaction
c.most enzymes slow down chemical reactions
d.enzymes decrease the activation energy in the reaction
e.enzymes are converted into products in the reaction
Answers
Answer:
It should be B. enzymes increase the activation energy of that reaction.
Pinky's science fair project in junior high focused on an observation that the Crickets outside her window chirp less frequently when the temperature was colder if data was collected consisting of the averge number of cricket chirps at different temperatures in her backyard which varible would be the independent variable
Answers
Air has mass and takes up space. What can we say about air?
A. It is an opinion
B. It is matter
C. It is energy
D. It is an idea
Answers
Answer:
B.
Explanation:
Air takes up space it is just super light therefore it is matter
:)
What is the density of a 700 kg object with a volume of 649 m3? (Density: D = D = m over v.) 0.927 kg/m3 .4543 kg/m3 1.079 kg/m3 4.543 kg/m3
Answers
Answer:
0.927 kg/m3
Explanation:
The density of a 700 kg object with a volume of 649 m30 is 927 kg/m3. Thus, option A is correct.
This problem is solved using density = mass /volume formula
mass= 700 kg
volume= 649 m³
density is therefore = 700 kg / 649 m³ = 1.079 kg/m³
What is density?Density has been calculated by dividing an object’s mass by its volume. The density of the water is generally 1,000 kg/m3 at 4°C. The unit of density has been kg/m3 (kilogram per cubic meter). The SI unit of density is kg/m3.
Density will be a measure of mass per unit volume. It is an intensive property, meaning that its value does not change depending on the size of the object. In physics, density has been defined as the ratio of the mass of the object to its volume. It has been often defined as mass per unit volume.
In chemistry, density has been defined as the measure of the amount of mass per unit volume of a substance. It has an intensive physical property, meaning that its value does not change depending on the size of the object.
Therefore, The density of a 700 kg object with a volume of 649 m30 is 927 kg/m3. Thus, option A is correct.
This problem is solved using density = mass /volume formula
mass= 700 kg
volume= 649 m³
density is therefore = 700 kg / 649 m³ = 1.079 kg/m³
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Which continent is 60 n , 100 w
Answers
Answer:
Pretty sure Canada or North America
Explanation:
Which region of Oklahoma is home to Lake Eufaula? A. the Prairie Plains B. the Sandstone Hills C. the Red River Plains D. the Red Beds Plains
Answers
Answer:
The Prairie Plains
Explanation:
I had the exact same question
Answer:
The Prairie Plains
Explanation:
Which two genotypes in an individual would be expressed as the same phenotype in a diploid organism?
Answers
Answer:
The correct answer is - h0m0zygous dominant and heterozygous .
Explanation:
The h0m0zygous dominant which means genotype with two copies of the particular gene, and heterozgyous genotype which means genotype with one copy of dominant allele and one allele recessive allele has the same phenotypic expression in a diploid organism.
In h0m0zygous dominant only dominant phenotype will be expressed and in heterozygous genotype the phenotype will be dominant.
Thus, the correct answer is - h0m0zygous dominant and heterozygous .
If an atom like aluminum becomes an ion by losing 3 electrons, what is the
charge on the ion?
1+
2+
3+
3-
Answers
Explain using C.E.R (Claim, Evidence, Reasoning) Why there are no planets other than Earth that humans can live on
Answers
Explanation:
because there has not been any signs of live and they are not suidable for humans.
HELP WILL MARK YOU BRAINLIEST!!!
Answers
Answer:
27) C
28) I think is the Deep sea
Explanation:
Why do you think adult male crabs have such a large claw? What could be the purpose of it? And can you think of any other animals that have structures with a similar purpose?
Answers
Answer:
cause they use the small one for feeding and the large one to attract a female crab for mating, the large claws are also used as a weapon
A sequence of DNA that codes for a protein has a substitution mutation. The new codon codes for the same amino acid as the wild-type DNA. What is the most likely effect of the mutation?
Answers
Answer:
There will be no effect of the mutation
Explanation:
Because the mutation codes for the same amino acid, there is no effect
what are the starting substances in a chemical reaction called
Answers
Answer:
Reactants
products are the result of the reaction
Explanation:
1.if you had to come up with a nonprofit, it would be called?
2.the purpose of my nonprofit would be?
3.the reason this would be my nonprofit is?
Answers
There is an algal bloom in a bay in a populated area. As the leading marine biologist in the area, what is the most important thing to do, based on scientific evidence about such blooms? warn people about which food is safe to eat develop a strategy to prevent future algal blooms warn people to stay away from the affected area evacuate all wildlife from the bay
Answers
The most important thing to do is that kindly evacuate all the living forms living in the area where there is an excessive amount of algal bloom.
What do you mean by Algal Bloom?
Algal bloom may be defined as the dense layer of tiny green plants that occurs on the surface of lakes and other water bodies when there is an overabundance of nutrients on which the species of algae depends.
Algal bloom grows as a result of Eutrophication. These growing algal species consume all major nutrients like phosphorus and nitrogen and expand their numbers. As a result of this, other organisms of that area feel the scarcity of minerals and nutrients, due to this a large mass of death has occurred. Algal bloom makes the surrounding water oxygen defiecient. So, to prevent these types of activities, it is better to evacuate all living forms and provide them with the other environment.
Therefore, The most important thing to do is that kindly evacuate all the living forms living in the area where there is an excessive amount of algal bloom.
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Answer:
Yo, The answer your looking for is D.
Explanation:
A major disturbance that almost caused a total collapse, but that the ecosystem was able to recover from eventually.
Answers
The provided question is incomplete, the correct question is attached with the answer:
Answer:
The correct answer is - the grasses which is diseased.
Explanation:
In the event that the grasses were diseased, the environment will recoup itself from this sort of disturbance. On the off chance that the number of inhabitants in snakes and hawks of prey increments so the biological system will recoup itself from this disturbance since snakes are the food of hawks.
So, if the number of inhabitants in snakes increments so more food is accessible for birds of prey as snakes and that is the reason populace of birds of prey likewise increments and the number of inhabitants in snakes is controlled.
An ecosystem is a system where an organism lives collectively and socialise with their surroundings. A robust ecosystem is necessary to keep the control nutrient cycle and food cycle.
A major disturbance from which the ecosystem overcame was when both the grasses and snakes got infected. The explanation for this is:
Increasing the number of snakes affected the size of the grass and decreased the number of rabbits as they were getting eaten by the snakes and hawks.Increasing the number of snakes also increased the number of their prey hawks.Increased hawks population controls the population of snakes and in this way, the biological food cycle will be maintained.Therefore, disease in grasses and snakes caused a major disturbance that almost caused a total collapse, but the ecosystem was able to recover.
To learn more about ecosystem and food cycle follow the given link:
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Which of the following resources would be considered green energy but not a renewable resource?
1.Wind
2.Solar
3.Hydropower
4.Nuclear
Answers
Answer: I think it's Nuclear, sorry if I'm wrong!
Explanation:
are viruses made of cells
Answers
Answer:
no
Explanation:
they are basically just packages of nucleic acid and protein
A microbiologist i under optimal is working with two genera of bacteria, A and B, to determine if cells are competent Strain minuteinti condit and DNA fragments that carry the gene for green fluorescent protein is added to each cut,e o each oulturew samples from each treatment are plated to nutrient agar and incubated, after which the plaes a ony the plates from sationary phase demonstrate fluorescent colonies. What can be concluded from the result? A. Both bacteria A and bacteria B cells are competent. B. Competence in bacteria A is constitutively expressed C. Competence in bacteria B is dependent on the phase of growth D. Neither bacteria A nor bacteria B cells are competence
Answers
Answer:
The correct option is C: "Competence in bacteria B is dependent on the phase of growth"
Explanation:
Since this set of cells produced fluorescent bacterial colonies, it means it took up the foreign strain of DNA and integrated in into its own plasmid. Since the other strain of cells was not able to present fluorescent bacterial colonies, something might have gone wrong or mishandled while preparing the competent cells.
Every day, people cook with and consume a variety of foods that contain lipids. Some foods are healthier sources of
lipids than others. The table shows the amount of saturated fat in various foods.
Food (1 tbs or 14 g)
Olive oil
Margarine
Butter
Lard
Canola oil
Amount of Saturated Fat in Foods
Saturated fat (g)
2
2.
7
5
1
1
Which food is the least healthy source of lipids, based on the data in the table?
O margarine
olard
butter
canola oil
Answers
Im sorry to "burst your bubble"..
But the correct answer would be: C- Butter
:))
The greater the percentage, the more mitochondria. What is the function of mitochondria? Why do heart cells have a higher percentage of mitochondria than liver and pituitary gland cells?
Answers
Explanation:
Mitochondria are the power house of the cell, they priduce atp from a series of processes. The ATP or Adenosine triphosphate is broken down to ADP or Adenosine diphosphate. To put simply emergy is released when a bond is broken due to hydrolysis which releases energy. More mitochondria are found in areas where mkre energy is required such as cells in,muscles, liver cells,and brain cells. ATP is extremely important for the heqrt as wnergy is required for the pumping of blood by contraction of the heart muscle.
hope this helps
can give a detailed exp if required
How many pairs of sister chromatids are in tetrapods of a horse?
Answers
Bats have oversized years which help the bats you sound waves to detect the motion of their prey which example of the characteristics of life is most similar
Answers
Answer:
A rat hides in its hole when it sees an approaching predator is the most similar example of the characteristics of life.