Jennifer and Cody are mixing substances during a lab experiment. They observe the four effects listed below. Which of these effects indicates that a chemical reaction has taken place between two substances?

A pink powdered substance turns water pink when they are mixed together.

A piece of shiny metal begins to bubble when placed in a clear liquid.

A white solid disappears when mixed with water.

A clear, lemon-scented liquid continues to smell like lemon when it is mixed with water.

Answers

Answer 1

Answer:

number 2

Explanation:


Related Questions

Amniotic egg is an egg that contains a f fluid-filled nucleus and a yolk sac

True or False
PLS HELP THIS IS FROM A UNIT TEST
science 30 points pls help

Answers

So for that one I’m going to go with True
the answer for this is TRUE

no link need right answer

Answers

Answer:

cutting down the rainforest destroys the habitat for a number of species

Explanation:

please mark this answer as brainlest

D. no guaranteed....

Students in an art class are assigned to make a miniature animal sculpture using materials of their own choice. Students who choose copper and aluminum as the materials for their sculpture will have no difficulty bending the materials into different shapes and angles. However, students who choose wood as sculpting materials will find that the food must be cut, glued, and sanded to form different shapes because it is lacking in -

A. Conductivity
B. Luster
C. Malleability
D. Ductility

Answers

C. Malleability

can i get brainiest?

i think it would be C. Malleability

Any one can you help me with this from 8 to 10 all plz HURRY TO ME

Answers

I’ll get back to u on this

Answer:

its not clear i would help u but i can't see it correctly

Explanation:

I'm not sure what the answer is but i think it's F please tell me kf i'm right or not.

Answers

Answer:

I think it might be 'F'

Explanation:

Because lobsters do eat snails so try 'f'

PLZ HELP! WILL GIVE BRAINLIEST, 5 STARS AND A THANKS!!
What is the relationship between "freezing point" and "melting point"?
**Explain your thinking below using quotes from the text.**
~You will get reported if you answer with something else~

Answers

Answer:

The freezing point of a substance is the same as that substance's melting point. At this particular temperature, the substance can exist as either a solid or a liquid. At temperatures below the freezing/ melting point, the substance is a solid.

Explanation:

edge 2021

Answer: The relationship between freezing point and melting point is that freezing point is at the temperature of when a liquid freezes and melting point is at the temperature when a solid melts which are both at the same temperature

Some quotes from the text to support this is that: "Freezing point is the temperature at which a liquid freezes and melting point is the temperature at which a solid melts.

When a plant bends to get more sunlight, which of these characteristics of life is it. A demonstrating?
B respiration
C reproduction
D sensitivity
E excretion

Answers

Not A not D, pretty sure not E, I don’t think it’s B so I think it’s C. Hope this is correct
The answer is c hope that helps

PLZ HELP! WILL GIVE BRAINLIEST, 5 STARS, AND A THANKS!!
What are the similarities between "melting" and "evaporation"?
**Explain your thinking below using quotes from the text.**
~You will get reported if you answer with something else~

Answers

Answer:

Melting and evaporation both represent changes in matter that involve behavior at the molecular level. We can see melting when ice becomes warm and changes to liquid, and we see evaporation when a puddle on the ground eventually disappears.

Explanation:

hope this helps :)

Why was it important to establish the Clean Air Act?

to reduce the need to study the effects of dirty air on human health
to determine ways to reduce the number of premature deaths per year
to create a regulation that makes any activities that pollute the air illegal
to make sure that no government activities polluted the local atmosphere

Answers

Answer:

It was important to establish the clean air act to create a regulation that makes any activities pollute the air illegal

Explanation:

Answer:

C. to create a regulation that makes any activities that pollute the air illegal

Science-fix the errors in the passage.

Answers

Answer:

A

Explanation:

aw jane s when whenenwiwnana

PLEASE HELP! I'LL GIVE YOU THE BRAINLEST!
The Hertzsprung-Russell diagram, for classifying stars based on the relationship between their brightness, temperature and color, is provided below. In comparison to the Sun, Betelgeuse is a -



Question 1 options:

Super Giants

Giants

MainSequence Stars

White Dwarfs

Answers

Answer:

supergiants

Explanation:

The Hertzsprung-Russell diagram, for classifying stars based on the relationship between their brightness, temperature and color, is provided in the image. In comparison to the Sun, Betelgeuse is a Super Giants.

What are super giants?

Supergiants are among the very big and very luminous stars. Supergiant stars are present at the top region of the Hertzsprung–Russell diagram with absolute visual magnitudes between about −3 and −8. The temperature range of supergiant stars have range between 3,400 K to over 20,000 K.

Some examples of super giants are-

The brightest star in the constellation Orion have blue-white supergiant, it is Rigel. Deneb is the brightest star in Cygnus. It is also a white supergiant. Delta Cephei is the famous star Cepheid variable is also a yellow supergiant and Betelgeuse, Antares and UY Scuti are red supergiants.

Therefore, The Hertzsprung-Russell diagram, for classifying stars based on the relationship between their brightness, temperature and color, is provided in the image. In comparison to the Sun, Betelgeuse is a Super Giants.

Learn more about Super Giants, here:

https://brainly.com/question/28464840

#SPJ3

What phenomenon is most responsible for ocean layers?

evaporation

condensation

precipitations

density

Answers

Answer:

precipitations

Explanation:

bcoz of water

Precipitations , is the most respionsible for ocean layers

You were rushing to get to school on time and dropped your breakfast food! Choose one atom in that food item and explain the story of how it got there in the first place and what happened to it next, if no human picks it up and it remains in the environment.
Follow your atom through at least one plant, one animal, and one decomposer.
There are possibly multiple paths your atom can take, but you only need to choose one for your story.
Explain how your atom gets from one point to the next.
You can use evidence from your notebook to help you tell your story.
You can use words and pictures to tell your story.



and dont just put a random answer

Answers

Answer:

I am going to chose your apple on your breakfast plate. Somebody plantes the apple seed. The apple tree takes time to grow. Once the apples are ready to be picked they are picked. Then the apples are sorted and go off to different schools like your school. Which is where you pick the apple up and put it on your plate.

Explanation:

What is Waves? Please help will give brainliest

Answers

Answer:

Waves involve the transport of energy without the transport of matter. In conclusion, a wave can be described as a disturbance that travels through a medium, transporting energy from one location (its source) to another location without transporting matter.

Explanation:

hope this helps, I tried to give an easy definition  :)

no link need right answer for usatestprep

Answers

Answer A explanation I am right
Pick the letter A yessssssssssssssssssss

explain one or two things that adversely (negatively) affect the Earth's environment. How do you know that these things you're discussing are bad for the world around us?

Answers

Answer:

Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water.

Answer:

Hello! The main thing I will be talking about today is two things that negatively affect the Earth's environment. Humans have impacted the physical environment is many ways, two being, overpopulation. Overpopulation is becoming a problem in this world. Accidental births are the main reason. Overpopulation can cause economic problems, over-farming, deforestation, and even water polluting. Second thing is, burning toxic fumes, and creating pollution. Pollution is a very, very bad thing. It can cause the atmosphere to fill up with fumes which aren't good for plants, humans, or animals. Pollution can take the form of chemical substances or energy, such as noise, heat, or light. There are four main types of air pollution sources: mobile sources,  such as cars, buses, planes, trucks, and trains. stationary sources, such as power plants, oil refineries, industrial facilities, and factories. area sources, such as agricultural areas, cities, and wood burning fireplaces. I know the things I'm discussing are bad because, slowly the Earth is taking impact because of us. We need to make a better change and help our Earth.

Most minerals are _______ at room temperature.

solid
gas
liquid

Answers

Answer:

solid

Explanation:

Answer:

solid

Explanation:

2C4H10 + 13O2 --> 8CO2 + 10H2O

Which is true about the reaction shown above?

The reaction has two elements that combine to form a compound.

The reaction releases energy.

The reaction is a single replacement.

The reaction has negative ions in two of the compounds that switch places.

Answers

this is the combustion reaction of butane which releases energy

In order to perform an experiment, a chemist needs an element that has similar properties of sodium (Na) but has a lower atomic mass. Which element should the chemist select for the experiment?
A. Rubidium (Rb)
B. Potassium (K)
C. Lithium (Li)
D. Calcium (Ca)

Answers

D calcium I looked it up
D. Calcium learned this last year lol

Draw a line graph showing the population of beetles and healthy trees in the forest for five years. Round the numbers to the nearest whole number.

Answers

how do i draw a line ghraph on a computer

Answer:

Sample answer is the first one and my answer is the second

Their both the same just different ways

All of these are characteristics of compact bone EXCEPT:
containing bone marrow.
hard and rigid.
provides support for the skeletal system.
blood vessels and nerves pass through it.

Answers

Answer:

Explanation:

Bone, or osseous tissue, is a connective tissue that constitutes the endoskeleton. It contains specialized cells and a matrix of mineral salts and collagen fibers.

The mineral salts primarily include hydroxyapatite, a mineral formed from calcium phosphate. Calcification is the process of deposition of mineral salts on the collagen fiber matrix that crystallizes and hardens the tissue. The process of calcification only occurs in the presence of collagen fibers.

The bones of the human skeleton are classified by their shape: long bones, short bones, flat bones, sutural bones, sesamoid bones, and irregular bones (Figure 19.16).

All of these are characteristics of compact bone except 'containing bone marrow'.

The characteristics of a compact bone

The compact bone is one of the types of bone found in the human skeletal system that is made up of organic ground substance and inorganic salts.

It is the main structure in the body for support, protection, and movement due to its strong nature.

Bone cells in compact bone are reached by blood vessels and nerves that run through the central and perforating canals.

Bone marrow is a semi-solid tissue found within the spongy bone ,but not compact bones, and has many blood vessels.

Therefore, compact bone does not contain bone marrow.

Learn more about bone here:

https://brainly.com/question/26323655

what type of fault caused the Tohoku earthquake? I need some help ASAP!

Answers

Answer:

The red star denotes the mainshock epicenter of the 2011 Tohoku-oki earthquake (Mw 9.0). The jagged black line denotes the Japan trench. The mechanism of great megathrust earthquakes is influenced by the frictional properties, structure and composition of the plate boundary fault10.

Explanation:

Answer: The red star denotes the mainshock epicenter of the 2011 Tohoku-oki earthquake.The jagged black line denotes the Japan trench.

Explanation:

Which of the following statements is true?

According to the Law of Inertia, the Earth will stay in motion because it is already moving.
The sun's gravitational pull keeps the Earth from moving in a straight line.
The speed of the Earth's motion keeps it from crashing into the sun.
All of the above.

Answers

Answer:All of the above
all of the above are correct

Which of the following is an example of the characteristic of movement?
1 The kitten shivers like she’s cold.
2 The moss on the rock is active even though it looks still.
3 Animal kidneys produce urine.
4 Nutrients provide living organisms with energy to manage other life processes.
PLZZZ DO NOT PUT LINK TO ANSWER

Answers

A. The kitten shivers like she’s cold

those link share ppl are SOOOOOO ANNOYING

Helppp!!!
Plants use energy from sunlight, water, and carbon dioxide to produce sugar. Which structure is found only in plant cells and helps plants capture energy from sunlight?

A) Vacuole
B) Nucleus
C) Chloroplast
D) Cell Membrane

Answers

Answer:

c

Explanation:

Answer:

C

Explanation:

Chloroplast helps plants capture energy from sunlight, so it is C.

Can someone help me?


My teacher is making me write a paragraph about photosynthesis.
(Has to be grade 5-6 writing )

Answers

Photosynthesis is a process where green plants and other certain organisms transform light energy into chemical energy. During photosynthesis in green plants light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.
(Sorry if this isn’t grade 6 writing just put it into ur own words)

Is Salt Water, Beach Sand, Air, Bronze, and Vinegar A
A.Compound
B.Mixtures
C.Solutions
D.Elements

Answers

Answer:

B mixtures

Explanation:

It’s B. You’re welcome.

The author of Space Systems: All About Eclipses makes the point that seeing a total solar eclipse is rare. How does the author use evidence to support this point?
A. The author describes how often, on average, a solar eclipse happens in the same spot on earth]
B. The author shows what happens during a lunar eclipse.
C. The author provides a visual that shows how often total solar eclipses happen
D. The author states that lunar eclipses happen at night.

Answers

Answer:

C is the correct answer I think

Which position shows spring in the Northern hemisphere?

Answers

D.because it comes after winter Lollllllllll
My answer would have to be for you to pick C

I'm not sure if I choose the right subject but can someone help me

Answers

Answer:

Blank 1: plasticity

Blank 2: outer core

Blank 3: mantle

Blank 4: crust

P.S. This is Geology.

Other Questions
OMGMG PLEASE HELP THIS IS SPANISH !!!ILL MARK U BRAINLIEST PLZZZZZZ HELP 50 POINTS Directions Now that the lab is complete, it is time to write your lab report. The purpose of this guide is to help you write a clear and concise report that summarizes the lab you have just completed. The lab report is composed of two sections:Section I: Overview of Investigation Provide background information.Summarize the procedure.Section II: Observations and Conclusions Include any charts, tables, or drawings required by your teacher.Include answers to follow-up questions.Explain how the investigation could be improved.To help you write your lab report, you will first answer the four questions listed below based on the lab that you have just completed. Then you will use the answers to these questions to write the lab report that you will turn in to your teacher. You can upload your completed report with the upload tool in formats such as , Microsoft Word, or PDF. Alternatively, your teacher may ask you to turn in a paper copy of your report or use a web-based writing tool.QuestionsSection I: Overview of LabWhat is the purpose of the lab?What procedure did you use to complete the lab? Outline the steps of the procedure in full sentences.Section II: Observations and ConclusionsWhat charts, tables, or drawings would clearly show what you have learned in this lab?Each chart, table, or drawing should have the following items:An appropriate titleAppropriate labelsIf you could repeat the lab and make it better, what would you do differently and why?There are always ways that labs can be improved. Now that you are a veteran of this lab and have experience with the procedure, offer some advice to the next scientist about what you suggest and why. Your answer should be at least two to three sentences in length.Writing the Lab ReportNow you will use your answers from the four questions above to write your lab report. Follow the directions below.Section I: Overview of LabUse your answers from questions 1 and 2 (above) as the basis for the first section of your lab report. This section provides your reader with background information about why you conducted this lab and how it was completed. It should be one to two paragraphs in length.Section II: Observations and ConclusionsUse your answers from questions 3 and 4 (above) as the basis for the second section of your lab report. This section provides your reader with charts, tables, or drawings from the lab. You also need to incorporate your answers to the follow-up questions (from the Student Guide) in your conclusions.OverallWhen complete, the lab report should be read as a coherent whole. Make sure you connect different pieces with relevant transitions. Review for proper grammar, spelling, punctuation, formatting, and other conventions of organization and good writing. Fill in the blank with the correct conjunction of star.Yo _______ cansado.estoyestamosestasestanP.S I didnt put lines above the letters that need it because my device is not capable. Find mZECDEDC 31ABPLEASE HELP I WILL GIVE BRAINLIEST A square dance floor has a perimeter of 120 yards.What is the length of a diagonal of the dance floor?O 38.3 ydO 30 ydO 60 ydO 42.4 yd whats the answer to this? Write a letter to your friend describing about your first terminal exams! No spams!!No links!! Which of the fractions is equivalent to 2/3 Why might a myth, such as the Chinese myth of Nu Wa, change the roles of characters over time? Poem: At A Window by, Carl Sandburg How does the line, Give me your shabbiest, weariest hunger! (Line 7) contribute to the theme of the poem? A. The speaker is suffering a broken heart. B. The speaker longs for and seeks out suffering. C. The speaker desires too much in life and is paying for it. D. The speaker is willing to endure a lot of suffering as long as they arent lonely. Find the missing side of each triangleI cant remember the steps to doing this/the formula, an explanation would be great thanks! QUICK PLEASE HELP! Which line from Brighton Beach Memoirs best helps the audience understand Kate's frustration with her son? A hexagonal prism has a base with an area of 15 square inches and the volume is 105 cubic inches..Complete the sentence about the height of the prism.The height of the prism is _____ inches,square inches,cubic inches What is the surface area of this prism?5 yd5 yd11 yd6 yd Let f be a function having derivatives of all orders for allreal numbers. The third-degree Taylor polynomial for f about x=2 isgiven byT(x) = 7-9(x-2)2-3(x-2)3a. find f(2) and f '' (2).b. Is there enough information given to determine wheather fhas a critical point at x = 2?If not, explain why not.If so, determine whether f(2) is a relative maximum, arelative minimum, or neither, and justify your answer.c. Use T(x) to find an approximation for f(0). Is there enoughinformation given to determine whether f has a critical point atx=0?If not, explain why not.If so, determine whether f (0) is a relative maximum, arelative minimum, or neither, and justify your answer.d. The fourth derivative of f satisfies the inequality for all x in the closed interval [0,2]. Use thelagrange error bound on the approximation to f (0) found in part(c) to explain why f (0) is negative. 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