Which statement correctly describes a chemical reaction?
O Reactants come out of a reaction.
O Energy is always released.
O Bonds between atoms break and reform.
O Products go into a reaction.

Answers

Answer 1

Answer:

C. Bonds between atoms break and reform.

Explanation:

A chemical reaction takes place when bonds between atoms of the reactants break and new bonds form in the product.


Related Questions

there is a ratio of 5 girls to 3 boys in the chorus there are 24 boys in the chorus how much girl are in the chorus

Answers

Answer:

40 girls

Explanation:

Which best describes Darwin's studies that led to the theory of evolution?
extensive research of an individual organism within a short period
O extensive research of an individual organism over many years
O observations and data collected within a short period
O observations and data collected over many years
What’s the answer to this biology question?

Answers

Answer:

The answer is D observations and data collected over many years

Explanation:

um i don't have one

Answer: D

Explanation:) edge 2022

Ecological succession is...
A. a series of changes that occur in an
ecosystem over time.
B. the evolution of an organism over
time.
C. the movement of new species into
an established ecosystem.

Answers

Answer: progressive changes in the species that make up a community over time.

Explanation:

Answer:Its A. a Series of changes that occur in a ecosystem over time.

Explanation: Ecological succession is the process of change in the species structure of an ecological community over time.

Hope this helps ^^

please help asap thank you

Answers

Answer:

What is the question?

Explanation:

examine the table, if a mutation occurred in the indicated region, which areas would you expect the Pitx1 gene.” check all that apply

Answers

Mutation result in changes in the nucleotides sequence in genes, so a mutation of the Pitx1 gene will change the nucleotide sequence in the gene.

What is a mutation?

A mutation refers to a change that occurs in the sequence of nucleotides in DNA molecules.

Since gene are regions of a DNA molecule that codes for a protein or gene product, a mutation will affect the gene product.

Therefore, for the Pitx1 gene, a mutation will change the nucleotide sequence in the gene.

Learn more about mutations at: https://brainly.com/question/2570717

____ is a blanket of fat wrapped around the main part of the neuron that keeps the brain's electrical signals on one path and increases their speed.

Answers

Answer:

Myelin.

hope this helps

IGCSE biology
name the part of the blood in which most carbon dioxide is transported

Answers

Answer:

the name of part of blood in which most carbondioxide is transported are:

1) dissolved in solution

2) buffered with water as carbonic acid

3) bound to protiens, particularly haemoglobin

Yesterday a car rental agency rented a number of different vehicles.
sedans
1
minivans
1
convertibles
4
3
sport utility vehicles
pickup trucks
1
Considering this data, how many of the first 15 vehicles rented today should
you expect to be convertibles?
convertibles 4 Sport utility vehicles 3 Pickup trucks 1

Answers

Answer:

6

Explanation:

First, write the experimental probability as a fraction in simplest form.

P(convertible)

=

convertibles

total

=

4

1+1+4+3+1

=

4

10

=

2

5

The experimental probability is

2

5

.

We can predict the outcome of the second set of trials by assuming that the ratio will be the same as in the first set of trials. Write a proportion by setting the two ratios equal to each other, then solve.

2

5

=

n

15

2

5

(515)

=

n

15

(515) Multiply both sides by (515)

215

= 5n Simplify

30

= 5n Simplify

6

= n Divide both sides by 5

HELP ASAP

Match each rock type with the correct description.

1. Made from eroded land
sedimentary
2. Changed by heat and pressure
igneous
3. Made from melted minerals
metamorphic

Answers

Answer;

Igneous - Made from melted minerals

Metamorphic - Changed by heat and pressure

Sedimentary - Eroded land

Explanation:

<3

Answer:

1. sedimentary

2. metamorphic

3. igneous

Explanation:

Which of the following describes an important function of Lipids? please no links

A.) Lipids store energy in their bonds.

B.) Lipids from cellulose, which give plants structure.

C.) Lipids help plants absorb the sun's energy.

D.) Lipids store hereditary information

Answers

Answer:

B.)  Lipids form cellulose, which gives plants structure.

Explanation:

you can find the link here! JKKKK JJJKKKKK

A boat heading out to sea starts out at Point AA, at a horizontal distance of 1292 feet from a lighthouse/the shore. From that point, the boat’s crew measures the angle of elevation to the lighthouse’s beacon-light from that point to be 12^{\circ}


. At some later time, the crew measures the angle of elevation from point BB to be 6^{\circ}


. Find the distance from point AA to point BB

Answers

The distance from point A to point B is 1320.9 feet

What is trigonometric ratio?

Trigonometric ratio is used to show the relationship between the sides and angles of a right angled triangle.

Let h represent the height of the light house, hence:

tan(12) = h/1292

h = 274.6 feet

Let d represent the distance from point B to the feet of the light house, hence:

tan(6) = 274.6/d

d = 2612.9 feet

The distance from point A to point B = 2612.9 feet - 1292 = 1320.9 feet

The distance from point A to point B is 1320.9 feet

Find out more on trigonometric ratio at: https://brainly.com/question/24349828

Pancreatic fluid contains enzymes that can digest all four types of macromolecules: carbohydrates, lipids, proteins, and nucleic acids. Into which organ does the pancreas excrete those enzymes

Answers

The pancreas releases the enzymes that can digest all biomolecules located in its juice into the stomach organ of the body.

What is pancreatic juice?

Pancreatic juice is a liquid substance that is produced by the pancreas organ and contains series of digestive enzymes.

According to this question, these enzymes embedded in the pancreatic juice can break down all the four biomolecules of food.

This means that the pancreas will release its enzyme-containing content into the stomach for it to act on each class of food.

Learn more about pancreas at: https://brainly.com/question/15720646

What would be the best title for the image shown?


Creating Daughter Cells ,


Cell Differentiation ,


Cell Division ,


Stages of Mitosis

Answers

Answer:

i dont know i just want points

Explanation:

Why are tidal patterns generally predictable?

Answers

Answer:

The rise and fall of the tides, which are driven by the gravitational attraction of the Sun and Moon on Earth's ocean are another cause of currents. ... The speed and direction of tidal currents are predictable. Tidal currents are the only type of current affected by the interactions of Earth, the Sun, and the Moon.

Explanation:

what is buccopharyngeal?​

Answers

Answer:

the cheek or the mouth of a pharynx

Explanation:

Answer:

its basically related to your jaw area

Explanation:

Relating to the cheek or mouth and the pharynx.

hope that helps:)

Help me the first to answer will get brainiest

What organic substance are both of these enzymes digesting ?

Answers

Answer:

if a substance has a pH higher than 7 it is considered to be a

base

if a substance has a pH lower than 7, it is considered to be an

acid

The substance with which an enzyme reacts is its

substrate

hope this helps you!!!!

Explanation:

What biomolecule do plants make during photosynthesis?

Answers

they make carbohydrates

What does NOT occur during the mitosis stage of the cell cycle?

Answers

Separation of the sister chromatids

how you feel about climate change?
Tell me how you feel on one page

Answers

Answer:

I feel negative against Climate Change.

Explanation:

Climate Change is trapping Co2 into the earth's atmosphere, raising the temperature of the Earth. Because of that, it's melting the Antarctic and killing millions of animals. Not only that, but it's also causing droughts, and usually droughts are the cause(s) of famine which kill millions of not only animals, but humans too. Therefore, I feel negative emotions about Climate Change.

If a microscope was not parfocal, how would you expect your specimen to appear when you switch from the lowest power to medium power objective?.

Answers

Answer:

Blurry

Explanation:

Parfocal lenses helps with focusing on a specimen so if the lenses are not parfocal switching to a different magnification would make it blurry and the focus needs to be adjusted.

PLZ help Bees need flowers that produce a lot of pollen. Which biotechnology could scientists use to make flowers full of pollen?

Answers

Answer:Pollinating insects such as honeybees play a critical role in maintaining the natural environment. The decline in honeybee populations is a global issue with significant repercussions with respect to the pollination of plants. The simultaneous expression of multifunctionality from synthesized ionic liquid gels (ILGs) for biotechnology is presented in this study. We also demonstrate that, when mixed with photochromic organic compounds, ILGs display rapid color changes, similar to light-triggered camouflage, on living Musca domestica specimens. By further exploiting the physicochemical properties of ILGs, we were able to achieve effective pollen adsorption by ILG-functionalized Formica japonica specimens from Tulipa gesneriana flowers with high biocompatibility. In addition, a radiowave-controllable bio-inspired flying robot equipped with ILG-coated vertically aligned animal hairs could be used to successfully pollinate Lilium japonicum flowers. Such materially engineered artificial plant pollinators should lead to the development of high-performance robotics that can help counter the decline in honeybee populations.

Explanation: this is an article I found hope it helps

Look at these data. Beak depth, the distance from the top to the bottom of the beak, is controlled by the bird's
genes. The bar chart shows the variation in beak size before a drought. The survival of birds after the drought
with a particular bill depth is shown by the yellow line. Explain how these data support the idea of natural
selection among the finches.

Answers

Directional selection increased the frequency of individuals carrying the larger bill depths and decreased the frequency of individuals carring small and medium bill depths.

What is directional selection?

Natural selection is an evolutive force that favors beneficial alleles and increase their frequency in the population.

Directional selection is the way in which natural selection acts on a population by increasing the proportion of individuals with an extreme phenotypic trait.

This selection presents more frequently in those cases in which interactions between living organisms and the environment modify in the same direction.

Data on the chart

Before the drought ⇒ Bar chart.

The chart indicates that before the drought, the average size of the bill depth was 9.5 mm. This is an intermediate phenotype between the shortest (7.5 mm) and the largest (11 mm).

So, most individuals in the population expressed the intermediate phenotype of the bill depth.

After the drought ⇒ Line chart

The line chart indicates that, after the drought,

→ only individuals with the largest bill depth (one of the extreme phenotypes) expressed the highest survival rates.

→ Individuals with the shortest bill depth (the other extreme phenotype) expressed the lowest survival rates.

→ Individuals with the intermediate phenotype expressed an intermediate survival rate.

Directional selection favored one of the extreme phenotype -largest bill depths- over the other extreme phenotype and over the intermediate phenotype.

The frequency of individuals carrying the largest bill depths increased.

You will learn more about directional selection at

brainly.com/question/9761638

The spread of the flu was lessened by which medical breakthrough?

vaccines

closures

quarantines

antibiotics

Answers

Answer : Vaccines helped lessen the spread of the flu.

If a nerve cell stopped functioning, the cell would
F start producing oxygen.
G begin dividing into more cells.
H become a different type of cell.
J stop sending signals to the brain.

Answers

Answer:

J stop sending signals to the brain

Explanation:

If a nerve cell stopped functioning, the cell would stop sending signals to the brain. The correct option is J.

What are nerve cells?

Nerve cells, also referred to as neurons, are 'excitatory' cells that can convert a variety of stimulation into electrical signals.

It usually aids in consistent sending information about the external as well as internal environment to the central nervous system in the form of action scenes of action potentials.

Neurons are the basic units of the nervous system, including the cells that receive sensory input from the outside world, send motor commands to our muscles, and transform and relay electrical signals at every phase between each one.

Thus, the correct option is J as any damage in the nerve cell can lead to impaired signaling to the brain.

For more details regarding nerve cells, visit:

https://brainly.com/question/2681723

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List the major phyla under the kingdom protoctist

Answers

Answer:

Pyrrhophyta (dinoflagellates)

Euglenophyta (euglenoids)

Chrysophyta (golden algae)

Rhodophyta (red algae)

Explanation:

hope this helps.

Please help me
this is due today
77 points
I will mark brainliest​

Answers

Dude the question is not clear

what is the fastest land animal?

Answers

Answer:

The fastest land animal is the cheetah coming in at 80 miles per hour being the average top speed.

Explanation:

Answer:

Cheetahs are the world's fastest land animal, capable of reaching speeds of up to 70 mph.

Explanation:

At 60–90cm, the muscular tail is half the head and body length. It acts like a counterbalance, aiding high speed manoeuvring. The exceptionally long vertebral column has amazing flexibility, and as it flexes and straightens this boosts stride length.Compared with other cats, all of the leg bones are stretched. The tibia and fibula are also fused to give more stability at speed, though this interferes with climbing.

Which of the following can affect the rate at which a chemical reaction will occur?

Answers

Temperature and pH levels are both correct
Reactant concentration, the physical state of the reactants, surface, temperature and catalyst all affect reaction rate

What volume of silver metal will weigh 2.5 kg? The density of silver is 10.5 g/cm3.

Answers

Answer: 238.0952 cm3

Explanation:

Convert 2.5 kg to grams (=2500), Then divide by 10.5 g to find out the cubic centimeter measurement

PLEASE HURRY IM TIMED What are the characteristics of a fibrous root system? (Select all that apply.) made up of one large root made up of many roots made up of thin roots made up of branched roots

Answers

Answer:

Fibrous roots are made up of many thin, branched roots. A taproot system has one large root. Many small, thin roots grow out from the large root

Explanation:

Hope this helps btw put in own words !!

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You can tell that Gandhi has a realistic grasp of actions Britain might take when he saysO "This letter is not in any way intended as a threat."O "Many think that non-violence is not an active force."O "It is, I know, open to you to frustrate my design by arresting me."O "You have unnecessarily laid stress upon the communal problems that unhappily affect this land." PLEASE ANSWER (100points) Why were railway authorities not present at the Wannsee Conference?They were unnecessary.Transportation plans were already in place.German and other Western European Jews had already been transported east.Western Jews were exempted from the Final Solution.Planned transport would occur by boat. PLEASE HELP ME Compare and contrast the strengths and weaknesses of the Articles of Confederation to those of the new Constitution. Which of the following are correctly balanced reactions?Check all that apply.A. Si + Cl2 SICIAB. 2H2 + O2 + 2H20C. Ca + FeO + 2Fe + CaoD. 2Na+ Br2 2NaBr The list below describes some of the decisions made by the Council of Trent.Reaffirmed important doctrines of ScriptureReaffirmed the seven sacraments, including the EucharistReaffirmed that the Church is the ultimate interpreter of ScriptureReaffirmed that the Bible and the Church are equal authoritiesReaffirmed practices such as the veneration of saints and relics.Which title best fits this list?Catholic Church Rules Established by the PopeAttempts to Restore Faith in the Catholic ChurchComplaints against the Catholic Church by ReformersDemands of the Catholic Church Made to European Monarchs Can someone also check on this one please and thanks Unit 1 Scale Drawings Review(6 OT 6)This diagram is a scale drawing of a store.4 inches1 inches3 inches2 inchesScale: 1 inch - 16 feetTo the nearest 50 square feet, what is the area of the actual store?A. 2,350 square feetB. 2,400 square feetC. 2,450 square feetD. 2,500 square feet Fill the gaps with the correct preposition Find odd one out----- please help will mark BRAINLIEST Find the values of x and y that make the quadrilateral a parallelogram. Find the unknown angle:R?1733030S prove that f=ma where the symbols have their usual meaning. Whats the type of reaction and word equation for: C2H6O+2O2= 2CO2 + 3H2O Find the values of a, b and c. The radius of a semicircle is 32. 4 km. What is the diameter of the figure. (Decimal answer only) What is the fluid in blood that contains water, nutrients, proteins, salts, and hormones?. Which statements are true about balancing chemical equations?Check all that apply.A. Atoms that are in only one of the reactants and only one of theproducts should be done last.B. Single atoms should be done last.C. Balancing chemical equations involves trial and error.D. Balancing chemical equations does not involve trial and error.SIIRRAT please answer this question Distinguish between electron affinity and electronegativity