What is one of the signs of a chemical change?

A.change of position
B.change of state
C.change of color
D.change of shape

Answers

Answer 1

Answer:

C. Change of color

Explanation:

Answer 2

Answer:

c

Explanation:

the chemical will change if it has anything different with it. it'll change colors


Related Questions

Prokaryotic cells do not contain many of the organelles that eukaryotic cells have. Prokaryotic cells do have a primitive form of _____________.

A.) ribosomes
B.) Golgi apparati
C.) mitochondria
D.) chloroplasts

Answers

Answer:

Ribosomes

Explanation:

Prokaryotic cells do have a primitive form of ribosomes. Thus, the correct option for this question is A.

What are Prokaryotic cells?

Prokaryotic cells may be defined as the types of cells that lack a well-defined nucleus and other membrane-bound cell organelles. The genetic material of a prokaryotic cell is a single chromosome made up of a single strand of DNA.

A Prokaryotic cell typically has a cell membrane or plasma membrane that functions or operates like a protective cover. Golgi apparatus, mitochondria, and chloroplasts are significantly absent in prokaryotic cells. This is because they are membrane-bound cell organelles.

The traces of ribosomes are required for the process of protein synthesis in order to accomplish metabolic activities required for the survival of prokaryotic organisms.

Therefore, prokaryotic cells do have a primitive form of ribosomes. Thus, the correct option for this question is A.

To learn more about Prokaryotic cells, refer to the link:

https://brainly.com/question/5716507

#SPJ2

How do particle speed relate to the distance between particles

Answers

Answer:However, particles will move in straight lines until they collide with something. Collisions usually change the speed and direction of the particles movements. If the motion of particles slows the particles move closer together. This is because the attraction between them pulls them toward each other.

Explanation:

Larger particles move slower, due to their larger mass and may be influenced by numerous collisions with many nearby smaller particles. Smaller particles move faster. ... Hotter particles move faster because they have more energy. The rate of diffusion increases as temperature increases because the particles move faster. You're welcome :) - xoxo madster

What does Protozoa mean?

Answers

Answer: Protozoans are simple organisms , or living things.

Explanation:

Answer:

Protozoa (also protozoan, plural protozoans) is an informal term for a group of single-celled eukaryotes, either free-living or parasitic, which feed on organic matter such as other microorganisms or organic tissues and debris.                           Mark me as brainiest

Explanation:

There is a Containing F so that it can reproduce more amoeba

Answers

Answer:

pls what do you mean

Explanation:

What is the Sl unit of time?
Ο Α.
second
O B.
minute
O c.
hour
OD day

Answers

Explanation:

Hey there!!

The si unit of time is second.

The international convention of scientists that was held in France had come to the conclusion that the si unit of time is second.

Hope it helps...

The SI unit of time is second

What number is written as 6.0 x 106 in scientific notation

Answers

Answer:

The answer would be 636 x

Explanation:

Simply act as if the x is nonexsitant then multiply normally then apply the x afterward.

Indicate whether each of the following is a primary source or a secondary source. An article in Journal of the American Medical Association: An article in Time magazine: An article in The New York Times newspaper:

Answers

Answer:PRIMARY SOURCE , SECONDARY SOURCE , SECONDARY SOURCE

Explanation: I just completed the assignment with a 100%

An article in Journal of the American Medical Association : primary source

An article in the Times magazine : secondary source

An article in the New York Times newspaper : Secondary source

Identify which type of source is being described.

✔ Primary

sources present original research, whereas

✔ secondary

sources summarize scientific information.

Indicate whether each of the following is a primary source or a secondary source.

An article in Journal of the American Medical Association:  

✔ primary source

An article in Time magazine:  

✔ secondary source

An article in The New York Times newspaper:  

✔ secondary source

e2020

What do DNA and RNA code for?

Answers

Answer:

The genome of an organism is inscribed in DNA, or in some viruses RNA. The portion of the genome that codes for a protein or an RNA is referred to as a gene. Those genes that code for proteins are composed of tri-nucleotide units called codons, each coding for a single amino acid.

Explanation:

In a molecule of water, the electrons are more strongly attracted to the hydrogen nuclei than to the oxygen nucleus. Therefore electrons spend more time near the hydrogen nuclei and there is an unequal sharing of electrons.A. TrueB. False

Answers

Answer:

Pretty sure it's false.

An experiment looking at structures smaller than a cell would most likely employ a _______.

Answers

Answer:

transmission electron microscope

Explanation:

All other mentioned microscopes are used for different reasons and for different types of cells.

After a pet is diagnosed as being sick, Dr. Chun, the veterinarian, takes the temperature of every other pet in the center. He is very careful to clean and cool the thermometer after taking each animal’s temperature. He then records data on a table. Even though none of the other pets appear sick, Dr. Chun finds that they all have very high temperatures. The next day, he learns that the thermometer had been damaged before, and a new thermometer shows that all the pets have normal temperatures. What was the most likely problem with the first set of data? It was inadequate. It was false. It was recorded by one person. It was not recorded in a lab

Answers

Answer:

The answer is B, or It was false

Answer:

B - it was false

Explanation:

just did the test

Which of these is most responsible for global deforestation?

A.forest fires
B.climate change
C.increased need for furniture
D.increased demand for agriculture

Answers

Answer:A.forest fires

Explanation: I said A because that is directly harming the forest and can easily burn trees.

Answer:

I would suggest the answer D, but there are multiple reasons for deforestation

Question 20 (10 points)
When you finish working with chemicals, biological specimens, and other lab substances, always
a
Ob
O
С
Od
wipe your hands on a towel.
wipe your hands on your clothes.
treat your hands with skin lotion.
wash your hands thoroughly with soap and water.
Question 21 (10 points)
Im

Answers

Answer:

My answer to the question is "wash your hand thoroughly with soap and water".

Answer:

D

Explanation:

Logically, D is what you would do after touching things like chemicals and biological specimens. The other options don't make as much sense (don't seem as logical) as option D

ce 8 A
What is the purpose of a reference point?
O to provide a standard system of measurement
O to establish a point from which to measure future distance, or if movement has occurred
O to determine the speed of an object in miles per hour
O to provide a standard from which to evaluate variables in an experiment

Answers

A: to establish a point from which to measure future distance, or if movement has occurred.

(i do not know the exact definition, so my apologies if this is incorrect, however i do have an explanation)

using process of elimination, we can cross out the 1st, 3rd, and 4th option, as they do not logically make sense:
1 - a reference point is not a system of measures, hence the word ‘point’.
3 - a reference point is again, not a measuring tool or system
4 - at a glance this may make sense, but a reference point is just that, a reference, it’s something you can go back to to see if your work is accurate or has changed in some way, thus option 2 is the best answer.


1. What does CDE stand for?
a. Career Development Event
b. Career Developing Education
C. Certified Department of Education
d. Career Department of Education
2

Answers

Answer:

A

Explanation:

Have a nICE DaY

NEED HELP ASP,Will give brainliest!!!!!!!! Make this a more testable, specif question. (is for my science project) How does/Does only using one brand of makeup, milk makeup that is vegan affect how the skin will react to makeup that doesn’t have many toxic ingredients?

Answers

Answer:

"How does/Does only using one brand of makeup, milk makeup that is vegan affect how the skin will react to makeup that doesn’t have many toxic ingredients?"

I would make this more percise and easier to read. It's a little long and wordy.

I would say this instead: How does one brand of milk and vegan makeup affect the skin's reaction to other makeup that has no toxic ingredients?

This way you're describing and adding adjectives in different areas that make more sense.

Gymnosperms are classified as which of the following?

Answers

Answer:

Gymnosperms are....

non-flowering plants, which are in the sub-kingdom of Embophyta.

Explanation:

Cycadophyta

Ginkgophyta

Gnetophyta

Coniferophyta

i need help please help me

Answers

Answer:

B

Explanation:

They're adding the increase to the already existing populaton. There were already 49, but 11-8 = 3, so there are now 52 meerkats.

11) What are the three primary uses of computers for biologists?


please help due today

Answers


Computers can be used to simulate cellular growth, the human nervous system, motor control, disease transmission, and disease progression. All of these things are highly useful in biological and medical research. These are only a few of the many ways that computers can be used in life sciences.

Answer: analyze datawrite reports build models

Explanation:

HELP ME PLZZZZZHELP MEEEE ASAP!!!!!

Answers

The answer to the question is A

Answer:

A

Explanation:

What is science and how does it affect our lives?

Answers

Answer:

Science is the study of the natural world through observation and experiment.

It affects our lives because it allowed technology, medicine, and education.

Science is our effort to understand the world around us. We depend on observations, experiments, and measurements to make predictions about our world. Our understanding of the world is constantly changing as technology improves in new ideas are formed.

How does it affect our lives?
Science informs public policy and personal decisions on energy, conservation, agriculture, health, transportation, communication, defense, economics, and etc.

is Human Bone a Plant / Animal / Neither

Answers

Answer:

Neither

Explanation:

A human bone is a non living organism therefore it cannot be a plant or an animal because those are living organisms.

What would happen if a giant dust cloud blocked the sun on Earth

Answers

Answer:

there would be the equivelant to a very harsh winter

Explanation:

Answer:

we would die from the lack of food and the vitamins that the sun gave and plants would die and and destroy the atmosphere also the water would be unclean

Explanation:

How did horses come to be ?

Answers

Explanation:

by breeding each other

Answer:

Evolution

Explanation:

Multiple centuries of evolution made horses come to be, most likely evolved from Eohippus. the Prehistoric horses known as dawn horses, they came to be from underwater bacteria that came to life from evolution from the natural world.

One reason why most fossilized animals have incomplete remains is that parts like the:​

Answers

Answer:

The Skin weren’t preserved at all

Explanation:

One reason why most fossilized animals have incomplete remains is that parts like the skin aren't usually preserved at all. There are however some instances in which the skin are preserved but it’s very rare.

This is because of the action of decomposers on the remains of the body parts and the presence of scavengers which eats the body parts thereby making the remains incomplete.

Will water that contains no solute ever stop flowing into a hypertonic solution through osmosis?

Answers

Answer:

No, it will never stop flowing

Explanation:

Osmosis is the movement of water from an area of lower concentration of solute to an area of higher solute concentration through a semi-permeable membrane. If one side of the membrane is completely free of solute, water will move to the hypertonic solution continuously in a bid to achieve equilibrium until all the water completely moves to the hypertonic side. This is because equilibrium cannot be attained since one side is completely void of solute and another has solutes.

It is like having red coloured paint on one side and water on another side of a membrane, and the water moves into the paint compartment and only stops when they both have the same color. No matter how much water moves across, they cannot have the same color on both sides.

HELP PLZ IM FAILING AND I NEED THE EXTRA CREDIT ❗️❗️

Answers

Amino acids Is the answer

Explanation:

proteins are made up of 21 different L-amino acids. these amino acids are joined together with peptide bonds. peptide bond is a bond between a caboxylic group of one amino acid with amino group of other amino acid.

following is a figure to describe the structure of a single amino acid, where R -group is variable and can contribute for the amino acid to be neutral, acidic or basic. next figure gives an idea of how many various amino acids are there.

8. In order for the pod
to slow down, the
two forces must
have been balanced
or unbalanced?
Why?

Answers

Gravity is creating a downward force that is equal to the force of the table pushing up. There are balanced forces (gravity and upward push of table) holding the ball in place.

Answer:

Unbalanced

Explanation:

I cant really explain this from the top of my head but i do know that if the forces were the same, the objects velocity will remain constant, but if the forces are unbalanced it will either slow down or speed up the objects velocity. an example would be tug of war i guess

Triglycerides are made of disaccharide true or false

Answers

Answer:

false

Explanation:

Answer:

false

Explanation:

In a water molecule,

Answers

Yes,
A water molecule consists of two atoms of hydrogen linked by covalent bonds to the same atom of oxygen. Atoms of oxygen are electronegative and attract the shared electrons in their covalent bonds.
What about a water molecule, H2O?
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