Chemistry Middle School

so like i need help pls!!!!!!!!!

Answers

Answer 1

Answer: pretty sure it is number 2

Explanation: sorry if i am wrong.

Answer 2

I think it’s nutrient poor soil

Related Questions

here we go again.......

Answers

Answer:

i think it might be C

sorry if it is wrong

I think C but I’m not positive.

helpppppp!!!!!!!!!!!!!!!!!!1

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**visible confusion**

help plez this was due yesterday

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Prokaryotic cells are unicellular
Eukaryotic cells are multicellular
Plant and animal cells are prokaryotic and eukaryotic because ↓
Prokaryotic cells- plants cells
Eukaryotic cells- animals cells
I am pretty sure that prokaryotic and eukaryotic cells are considered to be living due to the cell theory because the cell theory states that all living things are made of cells.

A student is standing with their back facing a campfire. The student notices that their back is much warmer than their chest. They know that thermal energy is being transferred from the fire and that this method of energy transfer can happen even if no air is present.

This method of energy transfer is —

convection

condensation

conduction

radiation

Answers

Answer:Conduction occurs when energy is passed between objects. The transfer of thermal energy is called heat. Particles of matter are in constant motion.

Explanation:

conduction because it transfers thermal energy

pls help its timed: Which of the following elements has properties similar to Br? Refer to the section of the periodic table shown below:

Periodic table showing three rows. Row 1: boron (B), carbon (C), nitrogen (N), oxygen (P), fluorine (F), neon (Ne). Row 2: aluminum (Al), silicon (Si), phosphorus (P), sulfur (S), chlorine (cl), argon (Ar). Row 3: gallium (Ga), germanium (Ge), arsenic (As), selenium (Se), bromine (Br), krypton (Kr).

a
Argon (Ar)
b
Aluminum (Al)
c
Chlorine (Cl)
d
Carbon (C)

Answers

Answer:

I think its c

Explanation:

The answer would be c

Arthur made a mistake labeling the diagram of the three stages of the cell cycle.

Where is the error in the diagram?

DNA is copied during the shortest stage.
The cytoplasm divides during the longest stage.
The nucleus divides in the stage before the cytoplasm divides.
Both the nucleus and the cytoplasm divide in the same stage.

Answers

Answer:

The third one. cell Y only

Explanation:

The third one. Only Cell Y.

What do Venus and Earth have in common?
their gravities
their temperatures
their atmospheres
their moons

Answers

Answer:

I think their atmosphere

I would say gravity. Venus’s gravity is similar to Earth’s <3

Explain the correlation between chemical properties and chemical changes. (plz i not sure on the answer so it would mean a lot if you could help me.)

Answers

Answer:

Explanation:

A chemical property describes the ability of a substance to undergo a specific chemical change.

A chemical reaction is a process that occurs when one or more substances are changed into one or more new substances.

Differences

Chemical properties are properties that can be observed or measured when a substance undergoes a chemical change.

Physical properties are properties that can be observed without bringing a chemical change.

Another one

chemical properties; can be used to predict how substances react.

chemical changes; It is mostly used in identifying or describing the substance.

A chemical property is any of a material's properties that becomes evident during, or after, a chemical reaction; that is, any quality that can be established only by changing a substance's chemical identity.[1] Simply speaking, chemical properties cannot be determined just by viewing or touching the substance; the substance's internal structure must be affected greatly for its chemical properties to be investigated. When a substance goes under a chemical reaction, the properties will change drastically, resulting in chemical change.

Chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. These processes are called chemical reactions and, in general, are not reversible except by further chemical reactions.

hope this helps!

Is a change in matter that produces one or more substances?

Answers

It produces one substance

Answer:yes

Explanation:

Yea

Which of the following is the best definition of weather?

a Events that happen over a long period of time
b A pattern of seasons changing over time.
c The atmospheric conditions at a particular time
d A measure of kinetic energy in the atmosphere

Answers

Answer:

Explanation:

Weather is what is happening at one point in time

Answer:

Explanation:

The atmosphere changes everyday and that is what makes the weather cold or warm.

Rosa eats a peanut butter sandwich for lunch. Peanut butter contains a lot of protein, and bread is mostly starch. Rosa plans to go for a run later this afternoon. Rosa is breathing normally.What does she need from the food she ate and the air she breathes so that she can go on her run? (Sentence starter: The molecules Rosa needs from the food she eats and air she breathes are...

Answers

Answer: What does she need from the food she ate and the air she breathes so that she can go on her run?

A. Rosa needs carbohydrates rich food (bread) to carry out her jogging activity. Protein-rich food before exercise is not recommended unless she is on a weight loss program (diet plan).

B. Rosa needs oxygen to perform aerobic respiration, which is required for maximum release of energy (36 molecules per reaction run). Anaerobic reactions yield less energy (2 molecules of ATP per reaction run) and are not recommended.

How do Rosa's body systems work together to get the molecules she needs into her cells?

Rosa's body cells need carbohydrates (glucose) and oxygen to perform aerobic respiration for the release of maximum energy. The glucose and oxygen molecules are provided to the cells via diffusion into the bloodstream. During exercise/jogging, complex molecules of carbohydrates such as starch (present in bread) are broken down into simple molecules (glucose) which are diffused into the blood. Likewise, a high amount of oxygen is provided to the body's cells via diffusion in blood, which is carried out by the faster movement of lungs and heart. The combined action results in the supply of both types of molecules to enter the cell where mitochondria use these substrates to produce energy molecules (ATPs).

How do hair cells use these molecules to release energy for her body to run?

The substrates (glucose and oxygen) enters the bloodstream and then taken up to the cell. Then they are provided to the mitochondria for the release of energy in the form of ATP. This is why mitochondria are known as the powerhouse of the cells. Within the cell, energy is released in a three-step process, i.e. glycolysis, the Krebs cycle, and oxidative phosphorylation. Here glucose reacts with oxygen. In the end, aerobic respiration per reaction run produces 36 molecules of ATP which are sufficient to meet intensive energy needs. During excrcise, the supply of oxygen and glucose is also faster due to faster lungs and heart actions.

PS: Anaerobic respiration cannot meet energy demands faster because the reaction produces only 2 ATP molecules per reaction run.

Explanation:

The molecules Rosa needs from the food she eats and air she breathes are

Food which are rich in carbohydrate to help her jog. This is because she is on a weight loss program which needs her to avoid protein

Furthermore, she would need oxygen so that she can successfully have aerobic respiration where there would be maximum release of energy to enable her complete her run better

According to the given question, we can see that Rosa wants to lose weight and she takes peanut butter which she takes and she is breathing normally which helps her perform aerobic respiration.

As a result of this, we can see that there is a need for Rosa to have the right diet which would help her with her jogging and weight loss program.

This would need foods that are rich in carbohydrate which would enable her to lose weight better and oxygen so that she could be efficient with her jogging and burn fat.

Answers

Answer:

bacteria, fungi, archaea , and protists in first box

plants and animals in second

Explanation:

eukaryotic are plants and animals

prokaryotic are bacteria and arches

eukaryotic :Animals, Plants, Fungi and Protists

PLEASE HELP WILL GIVE BRAINLIEST

Answers

The answer to this question is A

Answer:

i think its a

Explanation:

what made me think of this answer is "she casts a spell to keep the chicks warm after when the bulb breaks" she had to face the consequences tho she did the right thing

also i'm sorry if if is wrong but i hope its right and i hoped i helped out a little bit

BRAINLIEST FOR RIGHT ANSWERS PLS
The table shows the mass and boiling point of some substances.

Boiling Point of Substances

Mass

(kg) Boiling Point of Water

(°C) Boiling Point of Soybean Oil

(°C)

1 100 300

2 M N

Part 1: Is the value of M less than, greater than, or equal to the value of N?

Part 2: Explain your answer for Part 1.

Answers

Answer:

The N given in the question is normality while the M given in the question designates morality.

Explanation:

What is a nebula?
another name for the thick, poisonous atmosphere of Venus
a huge cloud of gas and dust particles in space
another name for the dust devils on the surface of Mars
a region in space where there are no stars or planets

Answers

Answer:

a huge cloud of gas and dust particles in space

Explanation:

no shet sherlock

______________ is the ______________ of heat between two objects that are ______________ to each other and in direct physical contact, or ______________ . It is caused by a temperature ______________ between the objects. Conduction is one way that heat is transferred from Earth's ______________ to ______________ . In nature, heat always moves from a ______________ object to a ______________ object. When air molecules touch the warm ground or water on the surface, heat is conducted from the ground or water to the air molecules, ______________ them up.
Words:
conduction
Transfer
Next
touching
difference
surface
air
warmer
cooler
heating
Most correctly answered will be Brainliest, 6th grade science

Answers

Answer:

conduction is the transfer of heat between two objects that are next to each other and in direct physical contact, or touching . It is caused by a temperature difference between the objects. Conduction is one way that heat is transferred from Earth's surface to air. In nature, heat always moves from a warmer object to a cooler object. When air molecules touch the warm ground or water on the surface, heat is conducted from the ground or water to the air molecules, heating them up.

Explanation:

dis it?

photosynthesis occurs and extra food is stored in which plant tissue\

dermal
vascular
xylem
ground

don't just do for points or i will report and whoever answer get's brainliest

Answers

Answer:Ground

Explanation:The roots help soak up moisture fromthe ground and can also store extra food made from photosynthesis

Photosynthesis occurs and extra food is stored in ground plant tissues in the form of sugars.

What is photosynthesis?

It is defined as a process by which plants and other photosynthetic organisms convert the light energy in to chemical energy through the process of cellular respiration.

Some of the energy which is converted is stored in molecules of carbohydrates like sugar and starches which are made up of from carbon dioxide and water . Photosynthetic organisms which can perform photosynthesis are algae and cyanobacteria. Photosynthesis is largely responsible for producing and maintaining the content of oxygen in earth's atmosphere.

The process begins with proteins absorbing light energy which are called reaction centers and contain a green pigment which is called chlorophyll . In plants ,these pigments are present inside organelles called chloroplasts while in bacteria they are present in plasma membrane.

Learn more about photosynthesis,here:

https://brainly.com/question/29764662

#SPJ2

PLEASE HELP WILL GIVE BRAINLIEST

Answers

Answer:

c option is correct ...

Answer:

I believe it's either A or C

Explanation:

PLEASE HELP WILL GIVE BRAINLIEST

Answers

Answer:

I think It's either A. or C.

Explanation:

Answer:

Explanation:

PLS HELP PLSSSS
33P
PLSSSSSSSSSSSSSSSSSSSSSSSSSSSS HELPPPP!!!

Answers

75% straight roots and 50% bent roots. sorry bb i’m not good at explaining why, but i promise it’s correct! <3

Answer:

75% straight

50% bent

Explanation:

because the Punnett Squares work that way

think of it as a multiplication table...when 2 numbers come to the middle, they give you the answer just like these squares (they're just smaller)

R + R = RR

R + r = Rr

r + r = rr

RR is 25%

Rr is 50% because there are 4 boxes and 2 of them is Rr

rr is 25%

Simpler answer:

I know because 25% + 50% = 75% for the straight root. 25% + 25% = 50% for the bent toot.

What are the characteristics of Venus? (Select all that apply)
Venus has a poisonous atmosphere.
Venus is much hotter than Earth.
Venus is about the same size as Earth.
Venus has 2 moons.

Answers

Answer:a/c

Explanation:

Venus is hotter then earth and Venus is about the same size as earth

When the Sun is in its maximum solar cycle, which of the following occurs?

One CME is produced every five days

There is an unpredictable amount of energy

Up to three CMEs are created in one day

Protons and neutrons accelerate

Answers

Answer:

One CME is produced every five days

Explanation:

Answer:

Up to three CMEs are created in a day.

Explanation:

I took the test and "one every five days" was incorrect, and Up to three CME's a day was right.

2. 1. Your best friend has missed a lot of school recently. Your teacher has allowed you to create a study guide and will let your friend use it on the test.

The guide should include:
• descriptions of amplitude, wavelength, frequency, and wave speed.
• Give examples of the wave relationship between amplitude and wavelength (if there is no relationship, explain how you know)
• Give examples of the wave relationship between wavelength and frequency (if there is no relationship, explain how you know)Text to speech

Answers

Answer:

Hi (best friend)! Here is what you missed!

Five wave parameters are defined and measured: the time, the frequency, the amplitude, the wavelength, and the speed. The wave length is the time it takes to pass a full phase. The frequency is just the opposite; it's the number of wave cycles that have been completed in a second.

Lets give a wave of water as an example. Its wavelength is the distance from crest to crest or from trough to trough. The wavelength can also be thought of as the distance a wave has traveled after one complete cycle—or one period. The time for one complete up-and-down motion is the simple water wave’s period T. In the figure, the wave itself moves to the right with a wave velocity vw. Its amplitude X is the distance between the resting position and the maximum displacement—either the crest or the trough—of the wave.

Study the diagram of the two animals.

Which statement best describes the animals?

Animal X begins life as a tadpole, and animal Y begins life as a larva that looks like the adult.
Animal X begins life as a larva that looks like the adult, and animal Y begins life as a tadpole.
Both animal X and animal Y begin life as a tadpole and change form as they develop.
Both animal X and animal Y begin life as a larva that looks like the adult.

Answers

Answer:

Animal X begins life as a tadpole, and animal Y begins life as a larva that looks like the adult.

Explanation:

brainleist please

Animal x begins life as a tadpole, and y begins life as larva that looks like the adult

is a plant homogenerous,hetergeneous,or a substance

Answers

Answer:

hetergeneous I hope this helps!

A plant is Heterogeneous

Please help me if you can.

Answers

Answer:

Explanation:

the answer is a cause SA and SH equal 89. to get the other side to equal 89 u gotta add 71 to 18 to get 89.

Why do chemical properties change?

Answers

Answer:

because they undergo physical and chemical changes

Answer:

of matter describes its "potential" to undergo some chemical change or reaction by virtue of its composition. What elements, electrons, and bonding are present to give the potential for chemical change.

Molecules can be made of
A. the same element only.
B. different elements only.
C. the same or different elements.

Answers

Answer:

I'm sure the answer is C. the same or different elements.

Explanation:

If I'm wrong tell me, but I am 100% sure that's the answer :)

Explain how Mendel used the F1 generation to conclude that genes are inherited.

Answer the Questionnn

science

Answers

Answer:

studied the generation to see there traits

Explanation:

studied the generation to see their traits i’m sure

Why do physical properties change?

Answers

Answer:

Physical change takes place without any changes in molecular composition.

Physical change takes place without any changes in a molecular composition.,

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I'm confused on how to do that? Use the tape diagram to write an equivalent ratio in simplest form. Write your ratio using a colon and no spaces. O Permetro de tringulo issceles mede 24cm. Qual a medida de comprimento dos lados congruentes sabendo-se que o lado no congruente mede 7cm de comprimento? Simplify 2 x 3 x x Which of these architects developed the St. Peter's basilica that exists today, and what were his changes from theoriginal design?a. Bramante rebuilt it with a central-plan design.b. Michelangelo developed it with unified space and a spherical dome.c. Carlo Maderno extended the nave to 636 feet, and added a new facade. Matt and Chris leave their uncle's house in Phoenix at the same time, Matt drives west on 1-60 at a speed of 79 miles per hour. Chris drives east on 1-60 at a speed of 83 miles per hour.How many hours will it take them to be 64 miles apartTwo boats leave the same dock in Cairo at the same time. One heads north on the Mississippi River while the other heads south. The northbound boat travels five miles per hour. Thesouthbound boat goes seven miles per hour How many hours will it take them to be 66 miles apart?heAddit the sum of three times a number x and nine" kinetic energetic plus potential energy is called Which graph represents a proportional relationship? In what way did Thomas Stafford promote international relations?by working in Congressby docking with Russiansby sharing weather technologyby volunteering for Skylab please help me. ive been stuck on this test for 3 days and i need to get at least a 70% to pass Can somebody help plz To replace the trees destroyed by typhoon Yolanda, the forestry department of Tagaytay has developed a ten-year plan. During the first year they will plant 100 trees. Each succeeding year, they will plant 50 more trees than they planted the year before. Dewayne is throwing a birthday party for his friend. He wants to serve each guest one cupcake and one can of soda. At the store, soda is sold 6 to a pack, and cupcakes are sold 4 to a pack. What is the fewest number of cupcakes and sodas Dewayne must buy so that he has the same number of each? Can someone help me with this ASAP? Luther Industries has 25 million shares outstanding trading at $18 per share. In addition, Luther has $150 million in outstanding debt. Suppose Luther's equity cost of capital is 13%, its debt cost of capital is 7%, and the corporate tax rate is 40%. Luther's unlevered cost of capital is closest to:_______A) 11.5%B) 10.8%C) 9.8%D) 13.0% In addition to hydronium ions which type of ion do acids produce? (Choose all that apply)A. AnionB. A negative ionC. CationD.A positive ion What poetic device does the following line contain? The trail of rain trickled down the slope A. onomatopoeia B. hyperbole C. slant rhyme D. internal rhyme ?????Help please?????? Ill cashapp u Which of the following were all left out of the Declaration of Independence?