reaction
A. a combination of two or more substances that keep their identities
B. a mixture that has the same composition throughout
C. a change in matter that does not result in a change in the type of matter
D. the process in which new substances are formed during a chemical change

Answers

Answer 1

Answer:

B

Explanation:

Answer 2
C - a change in matter that does not result in a change in the type of matter

Related Questions

According to the article, what was one problem caused by the fact that some people think vultures are ugly and disgusting?
A. Scientists have to work hard to convince people that medicines made from vulture parts actually work.
B. Conservationists have to work hard to convince the public to care about endangered vulture species.
C. Scientists have been hesitant to spend much time studying various vulture species.
D. Conservationists have been hesitant to spend money setting up a vulture conservancy

Answers

The correct answer is C
Correct answers is c !

physical change
A. the process in which new substances are formed during a chemical change
B. a change in matter that results in a change in the identity of matter
C. a combination of two or more substances
D. a change in matter that does not result in a change in the type of matter

Answers

Answer:

Im pretty sure its D or A

A physical change is a type of change in which the form of matter is altered but one substance is not transformed into another.

Answer:

D.

Explanation:

If it is just a physical change then we can instantly cross out B. and A. as they say in there that they become a new substance and that is not just a physical change. C. is not correct because they combine and there for make a new substance. That leaves D. which makes sense because a physical change would be a change in its size or something that doesn't change the material, this is like when you break a rock, it is now in pieces and smaller but it is still the same rock therefor it is a physical change.

What causes the sun to look like it is rising in the east and setting in the west? It also causes day and night

a
Sun's rotation
b
Earth's revolution
c
Earth's rotation

Answers

Earth revolution is the causes the sun to look like it is rising in the east and setting in west

20 points, just give an actual answer please

Answers

Answer:

A- Gogli apparatus

B- nucleolus

C- Endoplasmic Reticulum

D- Mitochondrion

E-Ribosomes

F- Lysosome

Explanation:

You know its the endoplasmic reticulum when it surrounds the nucleus and is warped. It is confused sometime with the Gogli apparatus. But the Gogli apparatus is thicker and straighter.

Nucleolus is the brain of the nucleus

Lysosomes are big circles, ribosomes are small circles. Ribosomes are usually found around the Endoplasmic Reticulum

Mitochondria is the tic-tac looking thing with lines on it. This is the powerhouse of the cell. "Mitochond-rhianna"

Answer:

A- Gogli apparatus

B- nucleolus

C- Endoplasmic Reticulum

D- Mitochondrion

E-Ribosomes

F- Lysosome

Explanation:

Which type of vessel carry needed materials including gases and nutrients around to body? TWO(2)

Answers

artillery and codlery vessels

What do you expect will happen to air pressure if the air temperature drops?
A)The air pressure will decrease slowly.
B)The air pressure will rise.
C)The air pressure will drop drastically.
D)The air pressure will not change.

Answers

Answer:a

Explanation:

I believe the answer is D

The graph shows the population of alligators and mosquitoes in a pond ecosystem where cricket frogs live. How will this impact the population of cricket frogs over time?

Decreases because the number of predators increases

Increases because the number of predators increases

Decreases because the number of prey decreases

Increases because the number of prey decreases​

Answers

It would be decrease because the number of prey decrease.
It would decrease because the number prey decreases

what tells you what genes you might have?

Answers

the answer would be DNA
I think the ANSWER is DNA

Here you go! Good Luck.

Answers

Answer:

The direction the blood takes through the circulatory system is important because it makes sure that the nutrients and blood gets to every organ and vein in our body. the direction the blood flows is this. Systemic circulation carries oxygenated blood from the left ventricle, through the arteries, to the capillaries in the tissues of the body. From the tissue capillaries, the deoxygenated blood returns through a system of veins to the right atrium of the heart. so we can be the living breathing people we are today.

Explanation:

Brainliest plz

i was gonna go off but the first guy was correct

The biggest mountain range in the world is found under the Atlantic Ocean and is called the MidAtlantic Ridge. New crust is found along the ridge. The mid Atlantic ridge is along a divergent boundary where plates are moving ______________________

Answers

Answer:

The blank is "apart."

Explanation:

Mid-ocean ridges are geologically important because they occur along the kind of plate boundary where a new ocean floor is created as the plates spread apart. Thus the mid-ocean ridge is also known as a "spreading center" or a "divergent plate boundary." The plates spread apart at rates of 1 cm to 20 cm per year.

Sidenote: Hope this helps! If you like it, please give it Brainliest!

A weather map shows two areas with a big difference in air pressures. The high air pressure area is to the south, and the low air pressure area is to the north. What do you predict will happen?
A) A breeze will blow between north and south.
B) Strong winds will blow from north to south.
C) Strong winds will blow from south to north.
D) Winds will blow back and forth between north and south.

Answers

Answer:

D

Explanation:

The air pressure will try to sway from left to right logically these to forces will be fighting so it would blow back and forth from north to south, hope this helps.

D. winds will blow back and forth between north and south

Please help me! Timed! PLSSS

Answers

Answer:

B

Explanation:

Answer:

B

Explanation:

Hope that helped

What role does DNA play in understanding homologous structures, and how is it used to support the Theory of evolution?

Answers

Scientists who find and study fossils are called paleontologists. Scientists compare the anatomy, embryos, and DNA of living things to understand how they evolved. Evidence for evolution is provided by homologous structures. These are structures shared by related organisms that were inherited from a common ancestor.

DNA enables researchers to pinpoint the alterations that took place to produce homologous structures. This is so because DNA controls the characteristics of the proteins an organism produces and how these proteins are used. The biology of an organism is subsequently affected by these proteins.

What are homologous structures?

A link between structures or DNA descended from a common ancestor is known as homology, which shows derivation from that ancestor.

Structures that are analogous are ones that were not present in the last common ancestor yet are physically (but not genetically) comparable.

Partial homology is also possible; novel structures can arise by combining various developmental routes.

Homoplasy, which is further broken down into parallelism, reversal, and convergence, is another name for analogy.

Therefore, researchers can identify the changes that occurred to form homologous structures using DNA. This is true because DNA regulates both the properties of the proteins that an organism generates and their functions. These proteins consequently impact an organism's biochemistry.

Read more about homologous structures, here

https://brainly.com/question/7904813

#SPJ2

What causes the water droplets to form on a glass window?
A) Air with low humidity warms up as it touches the glass.
B) The air absorbs more water vapor when it touches the glass.
C) Air with high humidity cools down as it touches the glass.
D) The humidity of the air increases when it touches the glass.

Answers

Answer:B

Explanation:

The air absorbs more water vapor when it touches the glass.

Answer:

B) The air absorbs more water vapor when it touches the glass.

Explanation:

So it basically builds up until a droplet is formed!

What are two climate feedback mechanisms that are taking place on or around the Antarctic ice shelf?

Answers

Ice albedo. Ice is white and very reflective, in contrast to the ocean surface, which is dark and absorbs heat faster. As the atmosphere warms and sea ice melts, the darker ocean absorbs more heat, causes more ice to melt, and makes the Earth warmer overall. The ice-albedo feedback is a very strong positive feedback.
Climate change is making the ice melt faster which causes the overall earths overall temperature to rise. After ice melts it literally has nowhere else to go,so ocean levels rise which ultimately could lead to the drowning of all cities around the world. Basically killing off everyone

An ecosystem has ________________________ when it has a large variety of organisms and has enough resources to support those organisms.

Answers

Answer:

Biodiversity

Explanation:

Biodiversity refers to the variety of living species on Earth, including plants, animals, bacteria, and fungi.

Hope this helps you :)

A friend claims her pet ferret is descended from the wild polecat. You want to learn more about this ferret ancestor. An online search shows several different kinds of polecats. How could you figure out which one is the ferret ancestor?

Answers

Answer:

So I just have to search it and it will work

Explanation:

TYSM

By the way her friend is describing her ferret

which layer of Earth has the most mass? A*the crust B the mantle C the inner core D the outer core

Answers

Answer: the mantle B

Explanation: Largest layer resulting in biggest mass.

Ya...... what he said

I NEED ASAP


In this model of the rock cycle, A represents ____
rock and B represents the process of _____

Answers

Answer:

B  is sediment, and A is metamorphic, may i have brainliest

Explanation:

Fred wants to summarize mitosis in the cell cycle. Which statement describes mitosis?

A. Mitosis includes several steps that occur after the cytoplasm is divided but before the DNA has been copied.
B. Mitosis includes several steps that occur after the DNA has been copied but before the cytoplasm is divided.
C. Mitosis is the step in which the cytoplasm is divided.
D. Mitosis is the step in which the DNA is copied.

Answers

The answer is A it occurs before DNA is copied.
I think A but I could be wrong

Why are monarch butterflies poisonous?

How do predators know they are poisonous?

How does a monarch's coloration help both the butterfly and the predator?

Answers

Answer:

Explanation:

The milkweed plant also has high concentrations of cardiac glycosides in its sap. ... In addition, the caterpillar of the monarch butterfly dines exclusively on the sap of the milkweed plant, rendering both the caterpillar and butterfly mildly toxic as well.

Predators know that monarch butterflies are poisonous because of their bright coloration, which acts as a warning that they are poisonous.

This coloration warns potential predators that the animal contains poisonous chemicals. Warning coloration may work particularly well in adult butterflies because the hard body and wings allows a predator to bite the adult, taste the poison, and release the butterfly without killing it.

Monarchs eat a plant called milkweed, which is why they are sometimes called “milkweed butterflies.” Milkweed contains toxins that are not poisonous to Monarchs but are poisonous to other living things. These toxins that are a regular part of the Monarch butterfly's diet make them poisonous to predators.
...... Predators that taste their food will spit out a Monarch Butterfly. If they have the ability to vomit, after swallowing a Monarch predators will usually do so...... This coloration warns potential predators that the animal contains poisonous chemicals. Warning coloration may work particularly well in adult butterflies because the hard body and wings allows a predator to bite the adult, taste the poison, and release the butterfly without killing it.

Right now, it is Winter for us in the Northern Hemisphere. What season is it in Austrailia (a country in the Southern Hemisphere) ?

a
Winter
b
Summer

Answers

Answer:

b) summer

Explanation:

The meteorological seasons in the Southern Hemisphere are also opposite to those in the Northern Hemisphere: spring starts September 1 and ends November 30; summer starts December 1 and ends February 28 (February 29 in a Leap Year); fall (autumn) starts March 1 and ends May 31

Answer:

B

Explanation:

the seasons are always differ by 6 months

Scientific modelling is a scientific activity, the aim of which is to make a particular part or feature of the world easier to understand, define, quantify, visualize, or simulate by referencing it to existing and usually commonly accepted knowledge.



Can anyone reword this? Please

Answers

Scientific modeling is a scientific activity, the aim of which is also to make something a particular part or feature of the word easier to recognize, define, quantify, visualize, or even simulate by referencing it to an existing and usually commonly accepted knowledge.
Scientific modeling is a scientific practice that seeks to make it easier to understand, describe, measure, imagine, or simulate a specific part or function of the world by referencing it to current and typically widely accepted information.

This one should be easy. Good Luck :(

Answers

Does this produce have seeds? Does it have a protective layer around the seed? If the answer is yes, then you are eating a fruit.
This one is easy. A question can be does it have seeds

When a wave in the ocean travels toward the beach, why does a floating seagull not get pulled with it?

A: The seagull is too heavy
B: The water Molecules don't travel with the wave toward the beach
C: the water is too dense
D: It is a longitudinal wave

Answers

Answer:

maybe do B, not all of the same water molecules travel with the same wave

Explanation:

B because The water molecules don’t travel with the waves toward the beach. Therefore your answer would be B

help asap please and thank you

Answers

The answer is four hope this helps

Predict: Fill in the blanks with the word or phrase you think correctly completes the following sentences.
1.) A medical researcher might study DNA in order to learn ___
2.) A crime scene investigator might study DNA in order to learn ___

Answers

Answer:

1. vitro synthesis of DNA, a researcher used 2', 3'-dideoxy cytidine triphosphate as raw nucelotide in place of 2' -deoxy cytidine.

2.The identity of the person belonging to said DNA. ... Also so they could find out who is the murder, thief or someone who did the crime but it would it would be sent to a lad re-searcher person to do the actual work to find out who did the crime.

Explanation:

Answer:

To also see if genetics play a part in other things like certain diseases etc that can be genetically caused.

2) The identity of the person belonging to said DNA. Although in actuality, the lab tech is the person who performs this task.

Can someone help me with this? I really need help, It was due yesterday, the questions are in the picture!

Answers

Answer:

5. A

6. B

7. D

8. D

Explanation:

I think thats right lol

Answer:

5. A

6. B

7. D

8. D

How are hail and snow similar?
A) They are solid precipitation that forms in clouds at or below freezing temperatures.
B) They are liquid precipitation that forms at or above freezing temperatures.
C) They fall when there are cirrus clouds in the sky.
D) They require gusts of wind that move the frozen chunks around and cause them to grow larger.

Science

Answers

Answer:

A) They are solid precipitation that forms in clouds at or below freezing temperatures.

Explanation:

A !! Is the correct answer

Energy and matter cycle through a beach ecosystem on the Gulf of Mexico. Identify one kind of model you can use to show the path of energy and matter through this ecosystem. Describe one limitation and one benefit of using that kind of model to show those processes.

(Please I'm in a hurry this is due today) 20 POINTS
Needs at leat 5 sentences.

Answers

One kind of model that I can use to show the path of energy and matter through this ecosystem is

Food chain; shows a single pathway of energy flowing, making it easy to see which organisms are primary, secondary and tertiary consumers.

According to the question, we are to discuss kind of model you can use to show the path of energy and matter through this ecosystem.

As a result of this, we can see that food chain can serve this purpose because it gives a linear sequence of energy transfer and allows to determine organisms that falls into different types of consumers.

Therefore, food chain is a model which shows a single pathway of energy flowing.

CHECK THE COMPLETE QUESTION BELOW;

Energy and matter cycle through a beach ecosystem on the Gulf of Mexico. Identify one kind of model you can use to show the path of energy and matter through this ecosystem. Describe one benefit of using that kind of model to show those processes.

Food web; shows energy available at each trophic level for the next group of organisms

Energy pyramid; show all pathways of energy flow in an ecosystem

Food chain; shows a single pathway of energy flowing, making it easy to see which organisms are primary, secondary and tertiary consumers

Learn more about kind of model at;

https://brainly.com/question/13171394

Other Questions
To make fruit salad, Maria bought 2 1/4 pounds of apples, and 1 1/3 pounds of peaches. How much fruit salad did this make? Make sure your answer is in simplest form. 9, 14, 7, 9, 3, 12, 5,4Find the mean and median travel times for these students.If necessary, round your answers to the nearest tenthMean: _ minutes Median: __ minutes A careless student forgets to label one of their reagent containers. They know it contains one of the following solutions: 0.1 M NaCl, 0.1 M Ca(NO3)2, 0.1 M KCH3COO The student decides to add some 0.1 M Pb(NO3)2 to a sample of the reagent in question. Upon stirring, a white precipitate formed. Which of the possible solutions was present in the unlabeled container based on this observation Find the measure of angle 4A. 51B. 39C. 90 A large pizza at Palanzio's Pizza starts at $6.80 with a $0.90 charge per extra topping. A large pizza a Guido's Pizza starts at $7.30 with a $0.65 charge per extra topping. How many toppings will need to be added for the price of the pizzas to be the same? Find the center and radius given the equation of a circle:(x + 2)2 + (y - 4)2 = 81 if there are 12 inches in a foot, and each brick is 2 inches wide, how many bricks would it take to make 1 foot? During a test flight, Jeri's rocket reached a height of 18 yards. This was 7 yards less than the height of Devon's rocket. Write and solve a subtraction equation to find the height of Devon's rocket. hello i am new here:)Question:- what is photosynthesis? How would I do this? Help please. Due today multiple choice, need help Can someone plz correct me plz it will mean everything plz The Boston Celtics have won 16 NBA championships over approximately 50 years. Thus is may seemreasonable to to assume that in a given year the Celtics win the title with probability p = 16=50 = 0:32,independent of any other year. Given such a model, what would be the probability of the Celtics winningeight straight championships Enter a digit in each box to complete the division problem.please help overall force acting on an object. (16/25)-3/2 help me solve 1. Complete the table with the perimeter of a square for each given side length Side length (inches) perimeter 0.5=? 7=?20=? What is the perimeter of the square garden? 5 1/2 ft Who served as President of the United States for twelve years