Answer:
its B
Explanation:
The incident that happen before a chemical reaction can begin the activation energy must be reached. Thus, option B is correct.
What is activation energy?
The extra energy is the minimum amount of extra energy which required by reacting molecule to convert into the product.
Factor at which activation energy depends are as follows:-
1: Activation energy depends upon the nature of reactant if reactant is ionic then required activation energy is less and if reactant is covalent then required activation energy is high.
2: Nature of catalyst if catalyst is positive then required activation energy is less and if catalysts is negative then required energy is high.
3: Activation energy doesn't depend on pressure, temperature, volume etc.
Temperature is one the important factor at which any reaction is depend. In any reaction if temperature is increases the rate of reaction is increases and if temperature is decreases the rate of reaction is decreases.
Here, is the Arrhenius Equation which shows the temperature dependence of the rate of a chemical reaction.
k=Ae^−EaRT
Where,
k= rate constant of the reaction
A= Arrhenius Constant
Ea= Activation Energy for the reaction (in Joules mol^-1)
R= Universal Gas Constant
T= Temperature in absolute scale (in kelvins)
Therefore, The incident that happen before a chemical reaction can begin the activation energy must be reached. Thus, option B is correct.
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Which of the following is the best definition of a system?
A. The form and arrangement of an object
B. a group of connected or related things?
C. Something that takes up space and has mass?
D. A collection of organs?
Answer
answer would be d
Explanation:
if correct brainlist?
Answer:
B. a group of connected or related things?
Explanation:
A system must have some form of relationship between the components inside of it. All these components work together to do a certain task or to run efficiently.
For example, let's take the court justice system. Inside the system is broken down into a range that can go from small claims court to the Supreme Court of the United States. This system is to ensure that their is not only a smaller burden on the supreme court to be able to take care more of national & international claims, but also so that if a citizen feel that they have a unfair ruling, they may bring it up to a different court that may not have local preferential to a certain degree.
All parts of a system is connected or related to each other, either as a cause, and effect, or a solution.
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When the air near the Earth’s surface warms, an area of ____ pressure is created.
This causes light, warm air to flow ____
Answer:
none
Explanation: i am sorry but i only want points....
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You want to measure the effect of different amounts of oxygen on the rate of yeast growth. What is the independent and dependent variable?
Answer: depndent the difrent amounts indendent yeast growth
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11. In which of the following examples will water move into the cells of the large intestine from the outside environment by the process of osmosis?
Osmosis occurs in the large intestine to transfer water from the feces into the neighboring cells.
What is the process of osmosis?Water is transported across cell membranes through diffusion and osmosis. The body reabsorbs absorbable solutes and electrolytes from meals (namely salt, potassium, and chloride ions).
The total solute concentrations and the permeabilities of the solutes in relation to water define the effective osmolality of a biological fluid, the large intestine to transfer water from the feces into the neighboring cells.
Water molecules move by osmosis across the cell membrane from a lower solute concentration to a higher solute concentration.
Therefore, osmosis, a kind of diffusion, is how water enters and exits the cell's large intestine to transfer water from the feces.
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Where is the nucleus found?
Answer:
in an animal cell, the center
Explanation:
Answer:
The nucleus is found in the center. :)
Explanation:
Hope this helped! Have a great day!
The night sky is filled with images of wild animals. Which animal is the circled constellation named after?
scorpion
serpent
snake
salamander
Answer:
Scorpion
Explanation:
Answer:
A
Explanation:
The rats that came to Easter island are described as unintended stowaways who climbed aboard the ships. Because they are not originally from the island, they are considered a _____ series.
Answer:INVASIVE
Explanation:
how do infrared waves, uv waves,and microwaves affect us
Answer:
Here is your answer
Explanation:
Infrared radiation has a longer wavelength and lower frequency than visible light. Too much exposure can damage your eyes and skin. On a global scale, trapped infrared radiation contributes to global warming.
UV rays, either from the sun or from artificial sources like tanning beds, can cause sunburn. Exposure to UV rays can cause premature aging of the skin and signs of sun damage such as wrinkles, leathery skin, liver spots, actinic keratosis, and solar elastosis. UV rays can also cause eye problems.
Microwave radiation can heat body tissue the same way it heats food. Exposure to high levels of microwaves can cause a painful burn. But these types of injuries – burns and cataracts – can only be caused by exposure to large amounts of microwave radiation.
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Are Eukaryotic cells the most sophisticated cell?
Answer:
Eukaryotic cells are more complex than prokaryotes, and the DNA is linear and found within a nucleus. Eukaryotic cells boast their own personal "power plants", called mitochondria.
Explanation:
THIS IS A PSYCHOLOGY QUESTION.
Describe the major theories for the purpose of sleep. Why do we sleep?
What type of element is Iron
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Which of the following are health issues related to algal blooms?
i. rashes
ii. allergic reactions
iii. intestinal problems
A. i only
B. ii and iii only
C. i, ii, and iii
D. i and iii only
Answer:
C. i, ii, and iii
Ribosomes and several types of RNA assemble proteins
True
False
Answer:
False
Explanation:
Answer:
the answer is true
Explanation:
they use amino acids to help with the RNA and ribosome protein forming process
An easy way to think of independent and dependent variables is, when you're conducting an experiment, the independent variable is what you change, and the dependent variable is what changes because of that. You can also think of the independent variable as the cause and the dependent variable as the effect. True True False
Answer:
True, True, True
Explanation:
Not exactly sure what you are asking, but I'm guessing you want confirmation.
3 to 4 examples of biological enzymes
Answer:
1.Lipases
2.Amylase
3.Maltase
4.Trypsin
What happens to blood once oxygen hits and why?
Answer:it changes colour
Explanation:
When blood passes through the lungs, the hemoglobin absorbs oxygen from the air we breathe and turns bright red. Our heart then pumps this blood all over the body. When it reaches its destination, the oxygen is released from the hemoglobin, and the hemoglobin turns a darker red-brown.
Does anyone know the answer to this hypothesis homework in science? I need help with #2 3 and 4
Answer:
2. Independent Variable
3. Dependent Variable
4. We write a hypothesis statement because it is part of the scientific process. Our hypothesis is a statement that supports our claim and can be tested.
Explanation:
what are the two types of eukaryotic cells?
Answer:
animals, plants, protists, and fungi
What type of weather is Idaho experiencing? (Northwest United States)
A Clear skies and sunny weather due to a low pressure system b Heavy precipitation and clouds due to a low pressure system c Heavy precipitation and clouds due to a high pressure system d Clear skies and sunny weather due to a high pressure system
Answer:
Among wet days, we distinguish between those that experience rain alone, snow alone, or a mixture of the two.
Explanation:
Increasing the rate of an impulse is the function of the_________.
A myelin sheath
B. axon terminals
C. cell body
D. axon
Answer:
Myelin sheath
Explanation:
Increasing the rate of an impulse is the function of the myelin sheath. Thus, the correct option is A.
What is Impulse?The Impulse may be characterized as an electrical signal that can be transmitted along a nerve fiber in response to an external or internal stimulus.
The Myelin sheath increases the rate of nerve impulses. This is because it insulates the part of axons and reduces the chances of any disturbance in between due to the assemblage of voltage-gated sodium channels.
Therefore, increasing the rate of an impulse is the function of the myelin sheath. Thus, the correct option is A.
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BIOLOGY please answer
Answer:
the same
Explanation:
why must a scientific explanation be supported by data
Answer:
Supporting a scientific inquiry with data helps reduce the bias opinion that's humans have.
? 3. Explain why Surtsey provided ideal conditions for studying primary succession:
Answer:
Due to newly formed land.
Explanation:
Surtsey provided ideal conditions for studying primary succession because due to volcanic eruption all the vegetation and living organisms are destroyed from the surface and the land has no vegetation. Primary succession only occurs when the land is colonized for the first time after the formation of land due to natural disaster such as volcanic eruption etc. So we can say that Surtsey provided the conditions for observing primary succession.
If you have a container with hydrogen atoms and oxygen atoms in it do you automatically have water?
Answer:
no
Explanation:
you have to have the right amount and the right situation for it to turn into water. for instance The unequal sharing of electrons gives the water molecule a slight negative charge near its oxygen atom and a slight positive charge near its hydrogen atoms. When a neutral molecule has a positive area at one end and a negative area at the other, it is a polar molecule.
Students are each given a 20-gram sample of an unknown solid compound in a clear plastic bag. They are instructed to break the material into smaller parts by gently hitting it with a hammer. Some of the parts break into large chunks and some look like a fine powder.
What is the question you are trying to ask?
Which best describes the relationship between temperature and dissolved oxygen in a lake?
As temperature increases, dissolved oxygen increases.
As temperature increases, dissolved oxygen decreases.
As temperature decreases, dissolved oxygen decreases.
A change in temperature has no
effect on dissolved oxygen.
Explanation:
Air and Water Temperature Increases
For example, increases in water temperatures are expected to result in the following: Lower levels of dissolved oxygen due to the inverse relationship that exists between dissolved oxygen and temperature. As the temperature of the water increases, dissolved oxygen levels decrease.
How is a snail dangerous to cattle?
Would it be easier or harder to pick up a slippery wet object when your fingers are wrinkled? Explain why or why not
Answer:
easier because your fingers are dried up and are not adding moisture to the slippery wet object
Explanation:
The hindbrain is mainly responsible for:
A. communication between all parts of the brain.
B. logical thought and language.
C. processing sensory input.
D. basic life functions and muscular coordination.
Answer:
basic life functions and muscular coordination.
Explanation: