Chemistry Middle School

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And 5 star rate

I Will Brainly And 5 Star Rate

Answers

Answer 1
THE ANSWER IS AGREEEEE!
......
Answer 2

Answer:

agree

Explanation:

you cannot undo the reaction when you bake the cake

Related Questions

Select the substance or substances that are homogeneous mixtures

Question 22 options:

Solution


Compound


Colloid


Molecule


Suspension

Answers

Answer:

colloid, suspension, solution

Colloid , solution, suspension . I hope it helps you

12 Points/Brainliest

Answers

Answer:

In fact, at the sea level, the the sea water boils at 100 degree C where atmospheric pressure is normal. However, the boiling takes place at a lower temperature at the top of a mountain due to low pressure. In other words the boiling is faster at the top of a mountain than that at its foot.

Explanation:

Hope this helped you :)

There is many sea levels

Use the terms carbon dioxide, nitrates, phosphates, sulfates, and water to complete the chart that describes the inorganic compounds that provide most of the main elements of life to plants.

Answers

Answer: hi imi i new

Explanation:

What can the student conclude about the experiments? (Attachment)
I WILL MAKE YOU BRAINLIEST

A. Experiments 1 and 2 show chemical changes because bubbles were produced.

B. Experiment 1 shows a physical change because no new substances were produced, and experiment 2 shows a chemical change because a new substance was produced.

C. Experiment 1 shows a chemical change because bubbles were produced, and experiment 2 shows a physical change because a liquid turned into a solid.

D. Experiments 1 and 2 show physical changes because no new substances were produced.

Answers

Answer: B. Experiment 1 shows a physical change because no new substances were produced, and experiment 2 shows a chemical change because a new substance was produced.

Explanation: a physical change is reversible

chemical is 2 or more substances combined to make a reaction such as bubbling, change of color or temperature

Which option is an example of a physical change?
iron rusting
metal denting
silver tarnishing
gasoline burning




please hurry!!!!!
Brainliest if right!​

Answers

Answer: metal denting

Explanation:

a physical change is something that can be undone. while chemical changes are relatively permanent. You can reshape the metal so you know it is physical.

Where is the DNA stored in a cell?

Answers

Answer: nucleus  

Explanation:

The dna cells are in the Nucleus

Jim ran 200 meters in 30.4 seconds. Mac ran 100 meters in 30.4 seconds. Who ran faster?

Jim, because his distance divided by time is less
Jim, because he ran a greater distance in the same time
Mac, because he ran the same distance in fewer seconds
Mac, because his rate of change of distance over time was constant

Answers

Jim, because he ran a greater distance in the same time :)

By the way, this is a maths question

Jim ran faster hope that helped you out my boy

Why is it important to have a control?


IN SOUND ENERGY!!!!!!!

Answers

Answer:

why it is important to have control in sound of energy is because noise is airborne sound energy within a broad range of frequencies that has the potential to cause either discomfort or injury to people working in the area. specifically, noise needs to be controlled In order to *protect the hearing of the personnel who work at the facility *

Use the images below to complete the information on the table and answer questions 1-5.

Answers

Answer:

Proton: Positive

Electron: Negative

Neutron: No charge

Proton positive
Electron negative
Neutron neutral

PLEASE HELP ME!!
What happens at the borders of major tectonic plates?


Radioactivity is very high and large amounts of uranium are found.


Earthquake and volcanic activity is evident.


The edges of plates break apart due to the crushing that occurs.


The borders are calm and free of plate movement activity.

Answers

Answer: continental crust is created and oceanic crust is destroyed.

Explanation:

Answer:

Radioactivity.

When using the absolute method to assess muscular endurance, you should adjust the weight according to each individual's strength ability.


Please select the best answer from the choices provided.

T
F

Answers

I’m pretty sure it’s true I’m not 100% sure tho
It’s true!!!!!!!!!!!

Heather is investigating the properties of light and how it travels. She places a glass on the windowsill and waits for the sun to shine on the glass and observes what happens. Next, she places a piece of cardboard in front of the glass. Which statement describes the results of her observations?

A Since glass is translucent, most of the light energy was reflected from the glass.
B When the cardboard was placed in front of it, the cardboard absorbed some of the light energy.
C The light from the sun was able to travel through the glass. When the cardboard was placed in front of the glass, it absorbed the light energy from the sun and converted it into heat energy.
D The glass absorbed the light and converted the light energy into heat energy. When the cardboard was placed in front of the glass, the heat was transferred from the glass to the cardboard.
When the sun hit the glass, the light energy was absorbed. When the cardboard was placed in front of the glass, it absorbed the light energy from the sun and converted it into heat energy.

Answers

Answer: C

Since glass is translucent meaning you can see through it, heat energy from the sun will easily pass through it. If you were to conduct this test with a piece of metal the heat would be absorbed by the metal making it extremely hot. In this instance when they put a piece of cardboard in front of the glass it would absorb the heat energy since it is not translucent.

Answer:

nope it is not c

Explanation:

Which statement is true about heat and light energy?

A Heat and light energy always move from colder objects to warmer ones.
B Heat energy moves in many different directions and light energy moves in only one direction.
C Objects do not produce both heat energy and light energy.
D Some objects can absorb both heat energy and light energy.

Answers

Answer:C

Explanation:

Answer:

D.

Explanation:

Got it right on my test, Trust me.

What are some advantages and disadvantages to the acid rain management techniques?

Answers

Disadvantages of acid rain:
• Acid rain affects the fresh water ponds and lakes and destroys the aquatic life as some species of fishes are rare and may be extinct
• it can affect the trees particularly those that are high altitude
• It can damage historical monuments and buildings
•soil can be affected and can lead to deaths of good microbes

Advantages of acid rain:
• it makes holes in limestone below ground, which creates caves and places to store groundwater, as well as providing habitat for some species
• But the new study shows that sulfuric in acid may have benefits, limiting global warming by counteracting the natural production of methane gases by microbes in wetland areas.

Of course you should do more studying on acid rain but these are the simple ones

Acid rain management techniques include protect plants from acid rain on falling on them.

What is acid rain?

Rain formed when sulfur dioxide and nitrogen oxide react with chemicals in the atmosphere like water,oxygen and carbon dioxide to form sulfuric acid and nitric acid and then falling to ground containing these acids is called acid rain.

Acid rain alters the environment the environment tremendously by damaging plants and aquatic ecosystems.Plants require a specific pH of soil for their optimum growth and nutrition.

Due to acid rain, the acidity of soil increases rendering it unfit for plant growth.Similarly, pH of water also increases which affects the survival of aquatic ecosystems.

It also damages the the monuments made of metals, marbles .Taj Mahal made up of white marble has turned yellowish due to acid rain.

Learn more about acid rain,here:

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PLS HELP ME! por favor, ayúdame!

Answers

B . Circulate and move within a liquid or gas

Convection is a process in which the heat from one part of a fluid ( which can either be a liquid or a gas ) moves to its other parts .

In two or more complete sentences explain how to balance the chemical equation,

Ca + N2 ⟶ Ca3 + N2 and include all steps.

Answers

Answer:

to balance this equation, your going to put a 2 in front of the "Ca" then that makes the equation look like this  "2Ca + N2 ⟶ Ca3 + N2" since the "Ca" had one atom, we added two more atoms

as we all know 1 + 2 =  3

then that gives us 3 "Ca's" on both sides

hoped this help and good luck on your test! :D

Explanation:

Think of a creative title for a video about the states of matter

Answers

Answer:

States of life ?

Explanation:

maybe this ?

Match the part of the wave to its description

Answers

Answer:

Crest Highest Point of the wave

Trough Lowest Point of the wave

Amplitude the height from mid point to the crest or trough

Wavelength Distance from one crest to another

The match of the wave is

Crest ⇒ Highest point of the wave.

Trough ⇒ Lowest point of the wave.

Amplitude ⇒ Height from mid point to the crest or trough

Wavelength ⇒ Distance from one crest to another.

What is wavelength?

Wavelength the distance a wave travels in the time it takes a medium particle to complete one vibration. The letter k stands for it. The meter is its SI unit.

What is amplitude?

 Amplitude can be referred to as the maximum displacement caused by the vibrating particle. A is the symbol for it. The meter is its SI unit.

To know more about wavelength click here.

https://brainly.com/question/13533093.

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Help I need to know and please answer three of the following questions

Answers

Answer:

we'll, metal cups are usually used for coffee so people who bring their coffee to work from home can keep it warm. metal cups however do not keep things cold, it may feel cold on the outside, but that's an illusion. plastic doesn't do much, its just a cold insulator. it is good at keeping things cold because it is a poor heat conductor. foil can keep things warm, but it can also keep things cold. do what you will with the info lol.

Answer:

1.H & E

Explanation:

metal cups keep things hot and cup H is made to keep things both cold and hot but the other cups will melt if you put hot stuff in them and number three is an answer it your self because it says to enter your answer so........

²³√∛·×÷±≈≠≤≥≡≅⇒,⇔∈∉∧∨∞αβΔπФω↑↓∵∴↔→←⇵⇅⇄⇆∫∑⊂⊃⊆⊇⊄⊅∀°∠∡⊥∪∩∅¬⊕║∦∝∞㏒㏑

A theory usually has observation and reasoning in its favor, although it may not be experimentally verified.

True or False

Answers

yes i believe it’s true
I believe it’s true :)

When a log burns in a fire, a a physical change has occurred. b mass is gained. c new substances are formed.

Answers

Answer: technically it is chemical and physical change

Explanation: chemical bc it’s burning and physical bc it’s going from a log to ashes

Answer:

C! New substances are formed.

Explanation:

The burning log will release carbon dioxide, which is a new substance that was never there in the first place.

Compound: ________________
. Found in soil; contains hydrogen (H) and oxygen (O)

Answers

Answer:

hydrogen im doing the same thing but diffrent

Explanation:

Hydrogen peroxide is the compound found in soil containing hydrogen and oxygen

What is Litmus Paper?

Answers

paper stained with litmus which is used to indicate the acidity or alkalinity of a substance. Blue litmus paper turns red under acid conditions, and red litmus paper turns blue under alkaline conditions.

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Litmus is a natural dye which is extremely from lichens. it is the most commonly used indicator. Litmus is available in the form of blue and red litmus paper.

Which of Newton's 3 Laws explains a rocket lifting off? *

Law of inertia
Law of Acceleration
Law of Action-Reaction

Answers

Answer:

Newton's Third Law of Motion

Explanation:

A rocket expels hot gases at a very high pressure very quickly, and these gases have lots of energy, and according to Newton's third law, every action has an equal and opposite reaction. So, expel lots of gas at a high rate, and the energy of the gases being pushed out propels the rocket upward. Hope that helps!

Newton's Third Law states that "every action has an equal and opposite reaction". In a rocket, burning fuel creates a push on the front of the rocket pushing it forward. This creates an equal and opposite push on the exhaust gas backwards.

2 more questions left

Answers

Answer:First one is 3

Steps of photosynthesis:

___ ATP molecules form.
___ Sugar molecules form.
___ Chlorophyll absorbs light energy.

Answers

Answer:

Chlorophyll absorbs light energy, ATP molecules form, sugar molecules form. I'm pretty sure this is correct, but if it is not I'm sorry...

Explanation:

1. Chlorophyll absorbs light energy
2. ATP molecules form
3. Sugar molecules form

How many atoms doesCo(NO3)2 have

Answers

The answer is 9. Calcium nitrate is made up
of 3 different elements that equal 9 atoms.
9 (I had this on a test and got it right)

Compound: _________________
. Found in air; contains carbon (C) and oxygen (O)

Answers

Answer:

Explanation:

Contian power

Carbon monoxide is the compound found in air that contains carbon and oxygen

I will brainly
And 5 star rate!!

Answers

most of them explode is the answer to that question
one or more substances are converted to a different substance. an example could be ( iron + oxygen = rust

What is the curie used to measure?

a.amount of radiation equaling disintegrations per second

b.amount of radiation biological material absorbs

c.amount of gamma radiation needed to produce a specific number of positive or negative particles

d.amount of radiation needed to produce positive or negative particles due to gamma rays passing through one gram of air

Answers

Answer:

Explanation:

A

The answer to this is A
Other Questions
Using an electronic___________, students can store images and recordings in one location.flash cardnotebook textbooksticky note "" (10;2) "b" (1;-1). :) 0,5"" + 5b ) "" - b ) "" + b Which battle inspired the writing of "The Star-Spangled Banner?Cypress SwampNew OrleansBaltimoreTippecanoe Solve the equation, justifyeach step with an algebraicproperty.7 = 16 + 3x what is the acceleration of a cat who starts from rest and moves 11.5 m in 2.8 s? Question 8 of 10In the past, the U.S. dollar was said to be backed by gold. Any person withU.S. dollars could exchange them for a certain amount of gold at any time.During that period, the U.S. dollar served as which type of money?A. Commodity moneyB. Representative moneyC. Fiat moneyD. Currency money plsss answerIdentify the parts of the central nervous system? mp + 3); use m = 3, and p = 5 During transcription what type of molecule is formed?A. RNAB. mRNAC. tRNAD. rRNA Trent is researching what it would take to become a pharmaceutical scientist. What academic requirements should he complete?A. an associates degreeB. on-the-job trainingC. technical schoolD. a doctorate degreeE. a bachelors degree Which of the following statements best describes the standard living of Europe? 100 POINTS!!!!The passage states that water exists in three states on Earth. Trace the changes in state of matter, from snow-capped mountain, through the water cycle, and finally back to the snow-capped mountain.A) melting snow; lliquid runoff; liquid water evaporates; water freezes; precipitation of frozen water (snow) back to Earth B) solid snow melts; liquid water flows to oceans; water evaporates; water condenses to form clouds; snow falls back to Earth C) solid snow melts; liquid water evaporates; gaseous water vapor condenses; water freezes; precipitation of frozen water (snow) back to Earth D) solid snow melts; liquid water soaks into ground; plants take up water; water evaporates; water freezes; precipitation of frozen water (snow) back to EarthYOU CAN HAVE ALL MY POINTS AND THE BRAINLIEST PLS HELP ME!!!! How does the spacing of the words in the lines of the second stanza of "Latin & Soul" help convey the poem's meaning?It conveys that the speaker feels disconnected from the music.It shows that the speaker is one of the dancers.It imitates the dancers' physical movements.It shows that the speaker is falling.VV Which statement best gives the central idea of the excerpt from Immigrant Kids?A: Medical examinations at Ellis Island forced many immigrants to return to their home countries. B: Immigrants were willing to leave their homes and journey to the United States because they believed their lives would be better.C: Immigrant children were luckier than their parents because they were able to start a new life so young.D: Ellis Island was an important part of an immigrant's arrival to the United States. Which tools can be used to measure the volume of a substance? Select the two correct answers.a. tape measureb. digital balance c. measuring cupd. graduated cylinder A trail mix recipe includes granola, oats, and almonds. How many Calories are in 2 cups of trail mix? The points (0.5,1/2) and (7,1 2/5) are on the graph of a proportional relationship what is the constant of proportionality name one more point on the graph write an equation that represents the proportional relationship I am Najood Age Ten And Divorced Questions: 1. Before: What did I already know about the subject of this book? (2 sentences minimum)2. During: How did I specifically relate to what is happening in this story? Which character did I most identify with and why? (5 sentences minimum)3. After: Overall, what was my most important take-away from this novel? In other words, what made the biggest impact on you, as the reader? Why? (5 sentences minimum) WANT POINTS ANSWER PLZZZ Trevor wrote the following sentence for his paper on Olympic gymnasts:Olympic gymnasts eat right, get enough sleep, and train very hard in the hope that they will win the gold in theeventsWhat kind of transition did Trevor use?(1 pointsequencingpurposeexampleemphasis An object launched at 65 degrees from the horizontal would have the same range(distance travelled) as an object launched from? Write only the WHOLE number withno units (example: 65)