Ms. Lewis is a chemist mixing two solutions together. A chemical reaction takes place, and the solution becomes warm. Which statement best describes what has happened?

Answers

Answer 1

Answer:

The reaction was exothermic.

Explanation:

Exothermic reactions turn warm or release heat, thus the reaction in the solution was exothermic.

Answer 2

Answer:

energy has been transformed from one form to another.


Related Questions

(a) Identify the cellular location where PDC is most active.

Answers

Answer:

The mitochondria

Explanation:

Answer:

Explanation:

The mutation will result in the translation of an inactive/nonfunctional Trp-T enzyme.

• The mutation will result in no translation of the Trp-T enzyme.

• The mutation will result in no/reduced production of I3PA

21. Choose the best answer.
The process of staying the same is

Answers

Answer:

The answer is homeostasis.

Explanation:

What molecule on the side of the DNA ladder do the nitrogenous bases bond to?

1. Ribose sugar

2. Amino acids

3. Phosphate groups

4. Deoxyribose sugar

Answers

The nitrogenous based bond to the Deoxyribose Sugar.

Potassium-40 has a half-life of 1.3 billion years. If a rock was
determined to be around 3.9 billion years old what percentage
of the original potassium-40 would be left in that rock sample?

Answers

Answer: The 3.9 billion year old rock has undergone three half-lives (3.9 divided by 1.3 = 3). After 3 half-lives, 12.5% of the potassium-40 remains undecayed.

The 3.9 billion year old rock has undergone three half-lives (3.9 divided by 1.3 = 3). After 3 half-lives, 12.5% of the potassium-40 remains undecayed.

If youre good at genetic variation answer these pls

Answers

Answer:

1. nucleus

2. They contain half of the genetic material of the parent

3. The offspring receive half of their genetic information from one parent

I hope this is right

PLEASE HELP ME WITH QUESTIONS 7-8 ASAP!!!!!! DON’T PUT ANY LINKS!

Answers

I think both are A I’m not sure

i really need someone to help!! i’ll give brainlist and 50 points!

Answers

Answer:

the polar bear walks 30 seconds per minute

The advantage of being able to clone the gene for human insulin is that
A) using human insulin increases the probability that, in the future, the person suffering from diabetes can be weaned from a dependence on insulin.
B) human insulin is less likely to cause harmful side effects than cow, pig, or horse insulin.
C) cow, pig, or horse insulin cannot keep a diabetic alive for more than three months.
D) there are too few cows, pigs, and horses to provide an adequate supply of their insulin.

Answers

The advantage of being able to clone the gene for human insulin is that using human insulin increases the probability that, in the future, the person suffering from diabetes can be weaned from a dependence on insulin. Thus, option A is correct.

What is clone?

The term clone has been defined as the exact copy of organism. The first clone is the dolly ship which has been created in the scientific manner. Human insulin is less likely to cause harmful side effects than cow, pig, or horse insulin.

There are too few cows, pigs, and horses to provide an adequate supply of their insulin and by using human insulin increases the probability that, in the future, the person suffering from diabetes can be weaned from a dependence on insulin.

Genetically engineered insulin is the synthetic human insulin which has been manufactured from the DNA sources in the laboratory. One advantage of the using genetically engineered insulin has been that it causes fewer allergic reactions as compared to animal insulin.

Therefore, option A is the correct answer.

Learn more about insulin on:

https://brainly.com/question/28209571

#SPJ6

ill give brainly pls help

Answers

The correct answer is 25 letter c

How do weathering and erosion work together to change or build landforms

Answers

Answer:

Erosion is another geological process that creates landforms. When mechanical and chemical weathering breaks up materials on the Earth's surface, erosion can move them to new locations. For example, wind, water or ice can create a valley by removing material. Plateaus can also be formed this way.

Explanation:

How many major organ systems exist in humans?
A. 15

B. 5

C. 11

D. 9

Answers

11, would be the answer

Answer:

C. 11

Explanation:

There are 11 major organ systems that exists in human beings. So, option (C) is the correct answer.

Pls help I’m literally so confused

Answers

Answer:

IT IS D

Explanation:

i did this and it was d

Answer:

D

Explanation:

Glycolysis, or the breakdown of glucose, is a process used by almost all organisms as a way to release energy stored within glucose molecules. This energy can then be stored in cells as ATP, which powers cell processes when needed. What does this show, in terms of the evolutionary history of cells using glycolysis?

Answers

Answer:

It was one of the earliest metabolic pathways.

Explanation:

The evolutionary history of cells using glycolysis shows that It was one of the earliest metabolic pathways which is used by nearly all of the organisms on earth for the production of energy for the survival, growth and development. The first organisms used this pathway for the generation of energy and with the passage of time, new pathways are also formed as the organism evolved so we can conclude that glycolysis is the first pathway used by the earliest organisms.

What distinguishes the brain from the spinal cord?

Answers

The spinal cord is a single structure, whereas the adult brain is described in terms of four major regions: the cerebrum, the diencephalon, the brain stem, and the cerebellum. A person's conscious experiences are based on neural activity in the brain.

Answer:

The brain controls voluntary processes.

Explanation:

The brain and the spinal cord are both parts of the central nervous system, but the spinal cord controls only involuntary processes.

Next Activity
Ke'Nyya Woodard
DHS Credit Recovery - 20/21 Biology: Lesson
6 - Energy Conversions
10
Target due: 3/12/21
Answer the following questions.
2) Energy is made in mitochondria and so "powers" the cell and all the cell's activities, that's why this
organelle is called the of the cell.
brain
O center
Ο Ο Ο Ο Ο
membrane
powerhouse
O energy

Answers

Answer:

it is known as the powerhouse of he cell

Explanation:

this is because it extracts energy from food through cellular respiration

The capybara is the largest rodent in the world. The anaconda is a giant water snake
that can eat a single capybara whole. Which of the following describes the
anaconda?
a)prey
b)predator
c)parasite
d)host

Answers

b) predator, this is because the capybara is the prey and c) + d) just dont work

Answer:

Answer is B

Ok I pull up

HELP I WILL GIVE BRAINLIEST
The main point of this page is..???

Answers

Answer:

The Main point of the page is to explain Celestial Objects to audiences who didn't know before.

Explanation:

It's a page to deeper to understanding of Celestial Objects or floating rocks :)

How many daughter cells are created at the end of meiosis I? _______ meiosis II? ______

Answers

Answer:

two for meiosis I

four for meiosis II

Explanation:

Answer:

2, and 4

Explanation:

Hope this helps

HERC2 gene is made of

Answers

Answer:

Dna i think im not sure if it is right?

Explanation:

Answer:

HERC2 is a giant E3 ubiquitin protein ligase, implicated in DNA repair regulation, pigmentation and neurological disorders. It is encoded by a gene of the same name belonging to the HERC family, which typically encodes large protein products with C-terminal HECT domains and one or more RCC1-like (RLD) domains.

Explanation:

Can I put a 4 foot corn snake in a 18 gallon tank?? If not what size?? Thank you!

Answers

No

Explanation:

A cone snake needs at least 20 gallon tank with more width than height.

Woodpeckers and squirrels fight for nesting rights in the same holes and spaces in trees, while the lions and cheetahs of the African savanna fight for the same antelope and gazelle prey. Which of the following statements about these relationships is accurate?

Answers

Answer:

its probably somehting abt competition :)

Explanation:

they fight for a limited resource which is competing

Answer:

These are examples of competition because the organisms are fighting for resources.

Explanation:

They are all fighting for the same things so it would be a competition.

can someone answer this pls??

Answers

Answer:

75% brown, 25% white

Explanation:

This question involves a single gene coding for color in chickens. The allele for brown color (B) is dominant over the allele for white color (b).

According to this question, a brown rooter with genotype 'BB' was crossed with a white hen (bb). The offsprings in the F1 generation will all possess the 'Bb' genotype and be brown colored. However, if these F1 offsprings are self-mated i.e Bb × Bb, the proportion of F2 offsprings will be 1BB, 2Bb, 1bb.

Since BB, Bb and Bb offsprings are Brown in color and bb is white in color, this means that the expected phenotypic appearance of the F2 offsprings will be:

¾ or 75% brown and ¼ or 25% white

What is the difference between between pulmonary artery and pulmonary vein?​

Answers

Pulmonary vein brings oxygenated blood to the heart from the lungs

Pulmonary artery take deoxygenated blood to the lungs

https//animebrainly.com

Answer number 5 HURRY PLEASE

Answers

Pretty sure it’s D because fossils develop over time

Answer:A) the  fossil  records shows that organisms have changed  very little over time

Explanation:

PLEASE HELP ME, it's URGENT!! TO GET A BRAINLIEST FROM ME, PLEASE EXPLAIN WHY YOU CHOSE THAT OPTION

A protein being built from individual amino acids would be an example of
A. Anabolism
B. Catabolism
C. Cell Division

Answers

Answer: A

Explanation:

Anabolism is the synthesis of a complex molecules from simplier ones. An example of this is the production of proteins from indiviudal amino acids.

Catabolism is the breakdown of complex molecules into simplier units. An example of this would be breaking down a protein into its individual amino acids.

Answer:

The breaking down of starch into its component sugars would be an example of  

✔ catabolism

.

A protein being built from individual amino acids would be an example of  

✔ anabolism

.

A molecule of sugar being broken apart to release energy would be an example of  

✔ catabolism

.

Explanation:

Please Help me (About Energy)

Answers

who is this Justin Bieber??!

The 1st one!

Hope this helps!:)


You throw a ball to win the
game. What systems are
working together to perform
the act of you throwing a
ball?
How do the nervous, muscular, & skeletal system
interact with each other to throw the ball?

Answers

The nervous system is sending nerve receptors to your brain so that your arm the muscular system will throw the ball the skeletal system allows yourself to hold the ball and works with the muscles to contract and the amp system allows your body to create energy so you can throw the ball

What is the two male and female reproductive organs called in hydras body?​

Answers

Answer:

Explanation:

Reproductive structures of hydra include the testis (consisting of sperm cells) and the ovary (carrying the egg) that are located under the ectoderm

Answer:

ovary is in girls.and testis is in boys.it is called the organs which presented in hydras body.

Explanation:

u can use first answer too.

GIVING BRAINLIEST!!!!

What defines a climate zone?

A) An area that has similar average temperatures and precipitation throughout
B) An area that has the same types of plants and animals throughout
C) The average temperature and precipitation in an area over a long period of time
D) The weather conditions in an area at a certain time

Answers

Answer:

I think  D...     or A

Explanation:

Climate zones are areas with distinct climates, which occur in east-west direction around the Earth, and can be classified using different climatic parametres. ... Due to temperature differences caused by the differences in radiation, recurring climatic conditions develop, such as winter and summer.

The climate zone described the area that contains the same temperature and precipitation.

What is a climate zone?

It is the area that contains different kind of climates that arise in the east-west direction around the earth. Also, it should be categorized by applying the various climate parameters. It should be bell-shaped in nature and the circular around the poles.

Therefore, the option a is correct.

And, the rest of the options are wrong.

Learn more about climate here: https://brainly.com/question/21557583

Orbits of the planet are

A) elliptical with earth at one of the foci

B) elliptical with the sun at one foci

Answers

Answer:

Elliptical with the sun at one foci

Other Questions
Fill in the missing information:1. Complete Nuclear Symbol ________2. Atomic # ________3. Mass number ________# Protons 22# Electrons 18# Neutrons 264. Charge _________ 10 + 4 (5 + x)Helpppppll A zoo keeper was in charge of determining the population of meerkats at the zoo. He observed the meerkats and noted 8 of them and the special markings are on their face. The next day he went back out and observed the meerkats again. Out of the 20 that he saw, 4 of them were the same meerkats that he saw yesterday. How many meerkats can he assume are living at the zoo? Plz show work thanks Which research question would work best to write a paper about the decreasing number of elephants in South Africa?A. When did the population of elephants start to change?B. How many elephants currently live in South Africa?C. Where do other elephants live?D. What is causing the population of elephants to decrease? Simplify. Keep your answer in exponent form.:) help Find the value of x.A.55B.25C.35D.10 how do i put that on a line?please help me. 6 is 4% of whatnumber? how can louisiana citizens influence government and public policy? What is the correct name for the cyclic alkane shown on the right?1,3-dimethyl, 3-ethylcyclohexane1-ethyl, 1,4-dimethylcyclohexane1-ethyl-1,3-dimethylcyclohexane1-ethyl-1,3-dimethylcyclopentane1,3 dimethyl, 3- ethylcyclopentaneA skeletal model of a six-sided polygon has a single line to a C H 3, and a bent line to a C H 3 from one corner. The second corner away from that counterclockwise also has a single line to a C H 3. (What are the Constitutional requirements for appointing federal government officials?Please answer HALPPPPP PLZZZ I'll give Brainliest for the first answer CORRECT Fossils show that ancient horses had shorter legs than modern horses. What is most likely responsible for the evolution of long legs in the horse species?Immersive Reader(5 Points)The horses legs stretched because humans started to ride on horses.The horses began to eat different foods, which made their leg bones grow longer.The horses legs stretched because the horses started to run faster than ancient horses.The horses born with longer legs were more likely to survive and reproduce. Which is the quotient of 4 divided by 1/4? 2, 8, 16, 24 Jen is renting a mountain bike . The bike rental shop charges a $55 deposit for the bike and helmet plus an additional $15 per day Remplissez les espaces blancs avec la forme correcte des verbes entre parentheses au PASS COMPOS, lIMPARFAIT ou au PLUSQUEPARFAIT selon le contexte:UN SENS DU DEVOIRCe / C (1.) __ (tre ) un dimanche aprs-midi dt, au bord dun lac. Le soleil (2.) __ (briller), il ny (3.) __ (avoir) aucun nuage dans le ciel. Il y (4.) __ (avoir) beaucoup de monde autour du lac. quelques gens (5.) __ (faire) des pique-niques, des enfants (6.) __ (jouer) au ballon, dici-l une jeune fille (7.) __ (lire) lombre des arbres et des hommes (8.) __ (dormir) avec un mouchoir sur le visage. Un petit garon (9.) __ (promener) son chien. Il (10.) __ (samuser) jeter un morceau de bois dans leau. Le chien (11.) __ (ramener) le bout de bois chaque fois et le garon le (12.) __ (relancer) dans leau. un certain moment, le chien (13.) __ (ne plus revenir). Il (14.) __ (tre) au milieu du lac, il (15.) __ (sembler) en difficult. Le petit garon l (16.) __ (appeler) avec toutes ses forces, mais le chien (17.) __ (ne pas bouger). On (18.) __ (pouvoir) voir que le chien (19.) __ (avoir) du mal nager, quil (20.) __ (tre) puis et quil (21.) __ (se noyer), mais on (22.) __ (ne pas comprendre) pourquoi. Tout le monde (23.) __ (se mettre) regarder la scne. Une jeune fille (24.) __ (sortir) son tlphone portable de son sac pour appeler les secouristes et elle (25.) __ (sapprocher) du garcon pour essayer de le consoler. Les enfants (26.) __ (arrter) de jouer et ils (27.) __ (se diriger) vers le bord du lac pour voir de plus prs. Soudain, un cycliste (28.) __ (arriver). Il (29.) __ (voir) ce qui (30.) __ (se passer) et tout de suite il (31.) __ (comprendre) la situation. Il (32.) __ (poser) son vlo par terre, il (33.) __ (enlever) sa montre, ses chaussures, sa chemise et ses chaussettes et il (34.) __ (plonger) dans leau du lac. Le cycliste (35.) __ (tre) en bonne forme physique, il (36.) __ (avoir) un corps trs muscl et il (37.) __ (savoir) nager trs bien et en trs peu de temps il (38.) __ (sapprocher) du chien. Il (39.) __ (observer) que le chien (40.) __ (tre) pris par la branche dun arbre qui (41.) __ (flotter) sur leau. Avec ses gros muscles, le cycliste (42.) __ (casser) la branche. Le chien et le cycliste (43.) __ (revenir) sur le bord du lac. Le chien (44.) __ (aller) apporter la branche casse son matre, le petit garon. ce moment, on (45.) __ (comprendre) alors que le chien (46.) __ (se tromper) et quil (47.) __ (confondre) le bton du garon avec une branche dans leau qui (48.) __ (appartenir) un gros arbre. Il (49.) __ (se faire) tuer presque, par un sens du devoir! Mais, tout tait bien qui (50.) __ (finir) bien! PLZZ HELP I WILL MARK YOU BRAINLIEST (( plz only answer if you have the correct answer )) What is unique about a poem as a form of literature? How is it different from other forms?A. It relies on readers' use of inferences.B. It focuses on feelings that humans share.C. It includes specific nouns and verbs.D. It is condensed into a small space. -2x + 7 = x-32 i need all the steps A tungsten wire is 1.5m long and has a diameter of A current of flows through the wire. The resistivity of the wire is 5.6 * 10 ^ - 8 What is the potential difference across the ends of the wire?