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What must happen before a chemical reaction can begin?
The activation energy must be exceeded.
The activation energy must be reached.
The concentrations of products and reactants must be equal.
The concentration of reactant molecules must be reduced.

Answers

Answer 1

Answer:

A

Mark me as brainliest ONLY if my answer is correct

I apologize if my answer is incorrect I will better my answering strategies if it is incorrect.

Explanation:

Answer 2
A - the activation energy is the minimum energy needed for the reaction to take place

Related Questions

Cancer cells do not respond normally to the specialized proteins that control the cell cycle; they divide excessively and may invade other tissues of the body.

a. True
b. False

Answers

the answer would be “a. True” hope I helped in time!

The Smiths went to dinner at Cheesecake Factory and their bill was $123.75 plus 7.5% sales tax. What is the total bill? Round to the nearest cent.

Answers

The total bill that was given to the Smiths at the Cheesecake factory was $133.03

An equation is an expression used to show the relationship between two or more numbers and variables.

Given that the Smiths bill was $123.75 plus 7.5% sales tax. Hence:

Total bill = $123.75 + Sales tax

Sales tax = 7.5% of bill = 0.075 * $123.75 = $9.28

Total bill = $123.75 + $9.28 = $133.03

The total bill that was given to the Smiths at the Cheesecake factory was $133.03

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How would you classify me?
A new single-celled organism without a nucleus was
found near extremely hot thermal vents on the
ocean floor.

Answers

The answer is bacteria

Using 3-5 sentences explain how human activties can affect climate change.

Answers

Answer:

Human activities can affect climate change because of just how much waste we produce. One huge example is our burning problem, which slowly strips away at the ozone layer that protects animals from heat and melting snow. Because of the ozone layer, the arctic has been protected for many years but now it's slowly disappearing, melting ice and killing animals who have not learned to survive in such hot weather. Another example is when humans cut down too many trees to sustain the environment; it often causes a massive lack in natural oxygen and unroots many homes of small critters and worms. In conclusion, humans can heavily affect climate change because of our ignorance and how we refuse to learn for the future.

Explanation:

the larynx, trachea, bronchi, and bronchioles all make up the

Answers

Answer:

Lower Respiratory Tract

Explanation:

The lower respiratory tract or lower airway is derived from the developing foregut and consists of the trachea, bronchi (primary, secondary and tertiary), bronchioles (including terminal and respiratory), and lungs (including alveoli). It also sometimes includes the larynx, which we have done here. This is where gas exchange actually takes place.

the folded organelle just outside of the nucleus that is covered in ribosomes and plays a role in protein synthesis is called the:

Answers

Answer:

endoplasmic reticulum (ER)

Explanation:

What is one important difference between savannas and temperate grasslands? A. Savannas only rarely experience fires. B. Temperate grasslands are mostly treeless. C. Savannas are inhabited by grazing mammals. D. Temperate grasslands have nutrient-poor soil.

Answers

The one important difference between savannas and temperate grasslands

is that Temperate grasslands are mostly treeless.

Temperate grasslands have varying types of plants and animals in the

region. They have very few trees and are mainly dominated by grasses.

The temperate grasslands have lesser amount of rainfall than the

savannas.

The Savannas have different types of plants ranging from shrubs to

woody trees. The temperate grasslands have nutrients due to the

formation of organic matter from dead plants leaves and roots and aren't

generally regarded as having nutrient poor soil.

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A group of scientists are observing a new found cell. They want to classify it as either a prokaryotic cell or a eukaryotic cell. If you were one of the scientists, what would be your basis for classification?​

Answers

The question can be solved by using the difference between eukaryotic and prokaryotic cell.Prokaryotic cell does not have a well defined nucleus. The nuclear material lies naked in the cytoplasm. It is known as nucleoid. While, eukaryotic cell has a well defined nucleus with a nuclear membrane.Prokaryotic cell has a single chromosome while eukaryotic cell has more than one chromosome.Finally, prokaryotic cell do not have membrane-bound cell organelles while eukaryotic cell have membrane-bound cell organelles.

Hope you could get an idea from here.

Doubt clarification - use comment section.

Based on their locations on the periodic table, which best compares the properties of the metalloids arsenic (As) and
antimony (Sb)?
Arsenic has a more metallic behavior than antimony because arsenic's atoms have fewer electron shells.
O Arsenic has a more metallic behavior than antimony because arsenic's atoms have more electron shells.
Arsenic has a more nonmetallic behavior than antimony because arsenic's atoms have more electron shells.
Arsenic has a more nonmetallic behavior than antimony because arsenic's atoms have fewer electron shells.

Answers

Answer:

Arsenic has a more metallic behavior than antimony because arsenic’s atoms have more electron shells.

Explanation:

the person above me is wrong

6. Type A and Type B blood are codominant to each other. They are both dominant
over Type O blood. Draw a Punnett square showing all the possible blood types for
the offspring produced by a type "O" mother and an a Type "AB" father

Answers

Answer:

Possible blood types

Genotype: AO or BO

Phenotype: A & B

Food Allergies ___________.
A. only impact Highly Susceptible Populations.
B. are very uncommon.
C. are serious and can be fatal.
D. are a cause of foodborne illness.

Answers

[tex] \: \: \: \: \: \: [/tex]

C. are serious and can be fatal.

hope it helps

#carryonlearning

Answer: are serious and can be fatal

Explain why the wound of a diabetic patients fails to heal heal easily?​

Answers

[tex]\large\huge\green{\sf{Answer:-}}[/tex]

When white blood cells are unable to function correctly, the body is less able to fight bacteria and close wounds. People with uncontrolled diabetes may develop poor circulation. As circulation slows down, blood moves more slowly, which makes it more difficult for the body to deliver nutrients to wounds.

NO LINKS HELP NEEDED ASAP

In a cohort study of a group of people born in a certain year, what characteristic is used from the cohort. A. age B. occupation C. behavior D. geography

Answers

Answer:

D.

Explanation:

What structural adaptation in chickens allows them to lay their eggs in arid environments rather than in water

Answers

the lumen of the digestive tract.

In what phase do mosses spend most of their life cycle?

Answers

Answer: The familiar, green, photosynthetic moss plants are gametophytes. The sporophyte generation is very small and dependent on the gametophyte plant.

Which of the three types of RNA is
involved directly with the process of
transcription?
A. transfer RNA (TRNA)
B. ribosomal RNA (TRNA)
C. messenger RNA (mRNA)

Answers

MRNA is involved directly in transcription

What process is the "copying" portion of protein synthesis? What is being copied? Why does it have to be copied?

Answers

The process of protein synthesis is known as translation. During this process, the mRNA is being copied into an orderly sequence of amino acids to produce a polypeptide.

During gene transcription, a fragment of DNA called gene is used as a template to generate a complementary messenger RNA (mRNA) sequence.

Afterward, this mRNA will be used as a template to create a protein by a process called translation.

The linear order of triplets of nucleotides or codons in mRNA will be used to add ordered amino acids to the growing polypeptide chain (i.e., the protein).

Learn more about mRNA in:

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Neurotransmitters that do not bind with the postsynaptic neuron are sometimes taken back up into the presynaptic neuron in a process called

Answers

Answer:

Reuptake

Explanation:

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Prokaryotes and Eukaryotes share which
of the following structures?

DNA, cytoplasm, ribosomes, cell membrane

DNA, cytoplasm, ribosomes, mitochondria

nucleus, cytoplasm, ribosomes, mitochondria

Answers

Answer:

Dna,cytoplasm,ribosomes,cell membrane

Explanation:

A chemical agent that kills pathogenic microbes in general is a(n) sanitizer. fungicide. disinfectant. antiseptic. germicide.

Answers

Answer:

Disinfectant

Explanation:

A dog who inherits an allele for
curly hair and an allele for straight
hair has curly hair because the
allele for-

E. curly hair is recessive.
F. curly hair is dominant.
G. straight hair is dominant.
H. curly hair is inherited from both
parents.

Answers

F. curly hair is dominant

. What is needed to support or back up a claim? examples and non-examples thoughts and feelings reasons and examples facts and opinions

Answers

Answer:

Reasons And Examples,

Explanation:

You need to figure out what your claim is about to support or back it up

Hope This Helps! Please Mark Brainiest

How do El Niño and La Niña differ?

Answers

Answer:

El Niño refers to the above-average sea-surface temperatures that periodically develop across the east-central equatorial Pacific. It represents the warm phase of the ENSO cycle. La Niña refers to the periodic cooling of sea-surface temperatures across the east-central equatorial Pacific.

Explanation:

How does cellular respiration occur in the dark and light?

Answers

photosynthesis occurs only in the light, and cellular respiration occurs in both the dark and the light

(i givs brainliest ovo + 50 points) Which of the following is an example of static electricity?

A. Clouds
B. Lights
C. Rain
D. Thunder

Answers

Answer:

B. Lights

Explanation:

One way to see this is that every other source is natural, while this is mainly caused manly.

how is the magnetic field of a magnet represented ?

first to answer gets brainliest!​

Answers

Answer:

Continuous lines of force/magnetic flux

Which of Earth's spheres are involved in the water cycle?
O A. Atmosphere, hydrosphere, and biosphere only
Imy
O B. Atmosphere and lithosphere only
O C. Atmosphere, lithosphere, and hydrosphere only
O D. Atmosphere, lithosphere, hydrosphere, and biosphere

Answers

Answer:

the answer is D.

Explanation:

all of the spheres interact with each other in order to make the water cycle occur.

The answer is D, atmosphere, lithosphere, hydrosphere and biosphere

A ____ is the coding and
is the trait.

Answers

The genetic code dictates which proteins the cell manufactures. Proteins are strands of amino acids. The sequence of nucleotides in DNA genes determines the order of amino acids in a protein. This is the direct connection between your genes and your traits.

Please help, i'm failing biology and REALLY need honest answers.
( DNA unit test, unit 6 lesson 13. CONNEXUS )

How are new viruses made?(1 point)

A. asexual reproduction

B. sexual reproduction

C. viral DNA or RNA copied by viral cells

D. viral DNA or RNA copied by a host cell

Answers

Answer: i’m pretty sure it’s C

Explanation:

C
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If two trucks have the same mass, but truck A is traveling 15 km/h, and truck B is traveling 30 km/h, what statement is true? Question 2 options: Truck A has greater kinetic energy. Truck B has less kinetic energy. Truck B will have a greater stopping distance. Truck A will have a greater stopping distance.

Answers

Given that the two trucks have the same mass but different velocities, that is truck A is traveling 15 km/h and truck B is traveling 30 km/h,  hence  Truck B will have a greater stopping distance.

The reason why Truck B will have a greater stopping distance is because it speed is greater hence more distance to cover.

From the following expression

Speed = Distance/Time

Distance = Speed*Time

More on the kinetic Energy

Following from the given problem truck B will also have more kinetic energy because it velocity is more

Formula

KE= 1/2mv^2

Hence the more the velocity for a constant mass the greater the Kinetic energy

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Answer:

B

Explanation: i tookt he test

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