Chemistry Middle School

Identify each picture.
Answer Choices are in attachment.

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Answer 1

Where are the answer choices

Related Questions

how do photoynthesis and cellular respiration work together to make ecosystems function?

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Answer:

Photosynthesis and cellular respiration are connected through an important relationship. This relationship enables life to survive as we know it. The products of one process are the reactants of the other. Notice that the equation for cellular respiration is the direct opposite of photosynthesis:

Cellular Respiration: C6H12O6 + 6O2 → 6CO2 + 6H2O

Photosynthesis: 6CO2 + 6H2O → C6H12O6+ 6O2

Explanation:

Answer:

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These two processes are responsible for the exchange of oxygen and carbon dioxide between living organisms and the environment. Photosynthesis converts carbon dioxide and water into oxygen and glucose Cellular respiration converts oxygen and glucose into water and carbon dioxide.

What is common among elements in the same group?

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Answer:elements are arranged in increasing atomic number from left to right

Explanation:

Answer:elements are arranged in increasing
atomic number from left to right

Human obtain electricity through fossil fuel, nuclear, solar, geothermal, wind, biomass, and hydroelectric power.

For at least two of these, explain ways that using this resource could pollute freshwater.

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For fossil fuel: Oil spills and leaks during extraction or transport can pollute water sources.

For nuclear power: An uncontrolled nuclear reaction can result in widespread a contamination of water.

if would make the environment smoother and safer for all of the animals and save plants,trees,oil

What are the four main categories of stars?
How does each of these types of stars differ in size, brightness, and temperature? *Answer both, please!* :)

Answers

Answer:

Read below:

Explanation:

1. The four main categories of stars are:

O-type stars: These are the hottest and most massive stars. They are extremely bright and have surface temperatures of more than 30,000 K.B-type stars: These stars are slightly cooler and less massive than O-type stars. They have surface temperatures of around 10,000 K and are also very bright.A-type stars: These stars are cooler and less massive than B-type stars. They have surface temperatures of around 7,500 K and are relatively bright.M-type stars: These stars are the coolest and least massive of the four categories. They have surface temperatures of less than 3,500 K and are not very bright.

2. In general, O-type stars are the largest and most luminous, while M-type stars are the smallest and least luminous. B-type and A-type stars fall in between these two extremes in terms of size, brightness, and temperature. However, there is a lot of variation within each of these categories, and there is not a hard and fast rule for how these characteristics relate to one another. The size, brightness, and temperature of a star depend on a variety of factors, including its mass, age, and composition.

Your dad is working on creating a brick border for the lake in your backyard each brick has a mass of 100 g and a volume of 20 cm3. what is the density of the brick? explain the steps you took the solve this problem showing your work then explain of the brick will float or not if it falls in the lake. why or why not (50 POINTS)

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Answer:

5000kg/m³

Explanation:

density=mass/volume

d=m/v

d=100/20

=5g/cm³

g/cm³*1000=kg/m³

5g/m³*1000=5000kg/m³

Answer:5000kg/m³

Explanation:

List 2 similarities and differences between prokaryotic and eukaryotic cells.
Will give brain

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Answer:

Like a prokaryotic cell, a eukaryotic cell has a plasma membrane, cytoplasm, and ribosomes, but a eukaryotic cell is typically larger than a prokaryotic cell, has a true nucleus, and has other membrane-bound organelles that allow for compartmentalization of functions.The primary distinction between these two types of organisms is that eukaryotic cells have a membrane-bound nucleus and prokaryotic cells do not. The nucleus is only one of many membrane-bound organelles in eukaryotes. Prokaryotes, on the other hand, have no membrane-bound organelles.

-- please mark the brainliest and click the thanks button if correct :)

Answer:prokaryotes:no nucleus,cell wall and cell membrane

eukaryotic:has nucleus,and endoplasmic reticulum

Explanation:

Match the term to its definition (Lessons 6.03, 6.04 and 6.05)
(i can't fit this all without confusion)

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Answer: the first paragraph is rain forest biome and the 2nd one is arctic tundra biome and finally the last paragraph is ocean or marine biome

Explanation:

rain forests have warm temperatures and include alot of animals and plants , artctic tundra biome includes cold temperatures ice stuff and all that and ocean or marine biome is pretty much just the ocean with seals , whales and marine life yk.

How the thermal energy of water changes as it goes through each of the six phase changes that happen on Earth (you can group melting, evaporation and sublimation together as well as freezing, condensation, and deposition)

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Answer:

Any phase change that takes you from higher energy particles to lower energy particles is exothermic.

Similarly, any phase change that takes you from lower energy particles to higher energy particles is endothermic.

The idea here is that in order to change the state of a substance you must either provide with energy or take away energy.

When you're going from particles that are in a lower energetic state to particles that are in a higher energetic state, you must provide energy.

This implies that the process will be endothermic since heat must be absorbed. You will thus have -- I'll ignore plasma here and stick to the traditional phase changes

solid to liquid →melting→requires an energy liquid to gas →evaporation→requires energy solid to gas →sublimation→requires an energy

When you're going from particles that are in a higher energy state to particles that are in a lower energy state, you must take away energy.

This implies that the process will be exothermic since heat is being released. You will thus have

gas to liquid →condensation→gives off a energy liquid to solid →freezing→gives off an energy gas to solid →deposition→gives off an energy

And there you have it -- six phase changes, three exothermic and three endothermic correspond to the three traditional phases of matter, liquid, solid, and gas.

When you're going from particles that are in a higher energy state to particles that are in a lower energy state, you must take away energy.

There are four states of matter in the universe: plasma, gas, liquid and solid. But, matter on Earth exists mostly in three distinct phases: gas, liquid and solid. A phase is a distinctive form of a substance, and matter can change among the phases. It may take extreme temperature, pressure or energy, but all matter can be changed.

There are six distinct changes of phase which happens to different substances at different temperatures. The six changes are:

Freezing: the substance changes from a liquid to a solid.
Melting: the substance changes back from the solid to the liquid.
Condensation: the substance changes from a gas to a liquid.
Vaporization: the substance changes from a liquid to a gas.
Sublimation: the substance changes directly from a solid to a gas without going through the liquid phase.
Deposition: the substance changes directly from a gas to a solid without going through the liquid phase.

The eye symbol represents Which hazards

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Answer:

This one should be REALLY easy for everybody to know but the answer is anything that can pose a hazard to your eyes

Explanation:

Answer:cyclone

Explanation:

how can a black bear family have different colors?

(please help, I have to turn it in tomorrow and my science teacher is very very strict.)

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Black bears can have different colors due to their habitat and adapting to their environment. The different colors in a family of bear is most likely due to a genetic variant that is similar to what causes albinism in humans. A mutation in a gene will cause an alteration in the coats pigmentation causing a different color fur.

yes due to their environment and habitat

The diagram below represents a species of beetle (ladybug) with two different body colors labeled A and B. These beetles live on trees and are eaten by birds. The percentage of each body color in the population of this species is indicated. The habitat of this beetle population is a group of trees with light-colored bark. Based on the information provided, explain why the beetle population in this habitat contains a higher percentage of beetles with body color A.

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Because the bugs with body color A are able to blend into the habitat/trees better, which makes it harder for the birds to see

Beetles are insects that belong to the superorder Endopterygota's Coleoptera order (/koliptr/). They can be distinguished from most other insects by the fact that their front pair of wings have solidified into wing-cases, or elytra.

What are beetles?

Beetles are the most common type of insect. Beetles are everywhere. But beetles can be confused with other kinds of insects, especially some true bugs. Beetles differ from all other winged insects by having the first pair of wings hardened and thickened.

Some real bugs (Order Hemiptera) have wings that resemble beetles in some ways. However, true bug wings are only partially thickened and stiffened. True insect wings are translucent on the outside. The mouth parts of the two groups can also be used to distinguish them.

Because the bugs with body color A are able to blend into the habitat/trees better, which makes it harder for the birds to see.

There is one further difficulty with identifying beetles. Beetles go through a significantly different-looking immature (or larval) stage before emerging as winged adults.

To know more about beetles, visit;

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Fill in the blanks, please

A(n)_______________wave can travel through empty space or through matter.
There are_____________types of wave motion-transverse ________________, and a comination of both.

This is about WAVE and this is SCIENCE

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Answer:

For the first one it is Electromagnetic waves and the second one is longitudinal and transverse and water water waves (I’m sorry if I get the second one wrong for you but the first I put is right)

Explanation:

An electromagnetic wave can travel through empty space or through matter.There are 2 types of wave motion-transverse ,longitudinal and a combination of both.

What is an electromagnetic wave?

The electromagnetic radiation consists of waves made up of electromagnetic field which are capable of propogating through space and carry the radiant electromagnetic energy.

The radiation are composed of electromagnetic waves which are synchronized oscillations of electric and magnetic fields . They are created due to change which is periodic in electric as well as magnetic fields.

In vacuum ,all the electromagnetic waves travel at the same speed that is with the speed of air.The position of an electromagnetic wave in an electromagnetic spectrum is characterized by it's frequency or wavelength.They are emitted by electrically charged particles which undergo acceleration and subsequently interact with other charged particles.

Learn more about electromagnetic wave,here:

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Design Report
Design a Thermos
It’s time to complete your Design Report. Save the lab to your computer with the correct unit number, lab name, and your name at the end of the file name (e.g., U2_ Lab_DesignAThermos_Alice_Jones.doc).
Problem and Constraints
1. What was the problem you tried to solve in your design challenge?
Type your answer here:
2. What were the constraints of the design challenge?
Type your answer here:
Plan
1. Draw a sketch of your design. Include labels and notes about how your design fits the constraints.
Type your answer here:
Test
1. Describe the procedure that you followed to test your design.
Type your answer here:
2. Describe the results of your design test.
Type your answer here:
Evaluation
1. Evaluate your design by describing how well the device performed and whether it met the constraints and solved the problem.
Type your answer here:
2. Revise your design by creating a sketch of an improved model. Describe how the new design is an improvement over the original.
Type your answer here:

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Answer:

Explanation:

s a job and your dad and I will let her get to get to get to the right sir thank I just want and if I will let her when I can do it out and your dad are going I think it's just the right hel

Which statement best describes how energy and matter move in a wave?
A
A wave transports energy without transporting matter.

B
A wave transports matter without transporting energy.

C
Neither energy nor matter is transported by a wave.

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Answer:

A wave e transports energy without transporting matter

Answer:

the answer is A. a wave transpory energy without transporting matter

Part A: ____ objects are more dense
Part B: ____ Objects are less dense

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Answer:

Part A: Solid objects with a greater mass per unit of volume are more dense.

Part B: Objects with a lower mass per unit of volume are less dense.

Explanation:

Not sure if this answers your question!

Answer:

A: solids

B: gases

Explanation:

Not sure if this is the answer you are looking for, but if it is hope it helps.

no problems

3. A recent flood in the area has caused many short-term changes to
the ecosystem. Which is a long-term change?
A. Standing water in the streets and sewers
B. Temporary displacement of organisms
C. Permanent change in the landscape
D. Poor water quality in rivers and streams

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Answer:

Explanation:

While standing water in the streets and sewers (option A) and poor water quality in rivers and streams (option D) may persist for some time after the flood, they are generally considered short-term changes as they can eventually be remedied through clean-up efforts and restoration programs.

Temporary displacement of organisms (option B) can also be considered a short-term change, as organisms will eventually return to their original habitats once conditions improve.

However, a permanent change in the landscape (option C) such as altered river channels, new water bodies, or changes in topography, can have lasting effects on the ecosystem and its inhabitants. These changes may alter habitat suitability, nutrient cycling, and water availability, which can impact the ecosystem for years or even decades to come.

Answer: C

Explanation:

The landscape could be flooded. Houses and buildings may be restricted.

Aubrey decided to visit a friend who lives 50 miles away. She drove 30 miles in the first hour of her trip and 20 miles the second hour of her trip. Aubrey's speed for the first hour of her trip was

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She drove 30 miles per hour on the first hour of her trip.

Ayooo aubreys my name

The swimmer in the pool is making waves when he swims. Choose the sentences that describe both the swimmer’s waves and the waves the worker makes when he hammers on the ladder. Choose the two that apply.

A. They both transfer matter.

B. They both transfer energy.

C. They both are surface waves.

D. They both are transverse waves.

E. They both need matter to travel through.

PLEASE HELP ME

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Answer: B

Explanation: sorry if wrong

help pleaseeeeeeeeeeeeeeeeeeeeeee

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Answer: I would say the camal, lizard, tiger, and armadillo do not live there.

Explanation: I looked at it on the internet and it says those are the ones that do not live there but I'm not for sure. I hope this helps good luck and sorry if I'm wrong.

i would say camel fishie

Robert is thinking about buying a new refrigerator. His old refrigerator runs at about 43% efficiency. Which most likely accounts for the remaining 57% of the energy?

A: It is used up by the light in the refrigerator.
B: It is released to the surroundings as heat
C: It is converted into mechanical energy.
D: It stored as a form of potential energy.

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Answer:

D it stores as a firm of potential energy

I am pretty sure it is d.

What is the role of the nervous system in the body? *
A. to protect other organs and tissues
B. to send messages using chemicals
C. to gather and respond to information
D. to transport oxygen and carbon dioxide
be quick plz!!

Answers

Answer:

I think its A

Explanation:

its the only one that makes sense

Answer

B: to send messages using chemicals

1. Using D10W and a vial of NaCl 4 mEq/mL, how many mL of NaCl are needed to prepare 250 mL of a
D10/NS solution?
a. 4.8mL
b. 9.6ml
c. 19.6mL
d. 154mL

Answers

To prepare 250 mL of a D10/NS solution using D10W and a vial of NaCl 4 mEq/mL, you would need 9.6 mL of NaCl. Normal saline (NS) contains 154 mEq/L of sodium chloride (NaCl). To prepare 250 mL of NS, you would need 250 mL * (154 mEq/L) = 38500 mEq of NaCl. Since the vial of NaCl contains 4 mEq/mL, you would need 38500 mEq / (4 mEq/mL) = 9625 mL = 9.6 mL of NaCl. So the correct answer is b. 9.6ml.

the correct answer is A 4.8 mL

PLZZ HELP
Florida was experiencing one of the coldest winters ever recorded in that state. The temperature even dropped to a low of 32 degrees Fahrenheit in Miami. It snowed in some parts of Florida.
Is this describing weather or climate??

Answers

the answer should be weather

The answer is it’s describing Weather.

When the speed of the bottle is 2 m/s, the KE is kg m2/s2. When the speed of the bottle is 3 m/s, the KE is kg m2/s2. When the speed of the bottle is 4 m/s, the KE is kg m2/s2. When the speed of the bottle is 5 m/s, the KE is kg m2/s2. When the speed of the bottle is 6 m/s, the KE is kg m2/s2.
instructions
In this part of the experiment, you will be changing the speed of the bottle by dropping it from different heights. You will use the same mass, 0.250 kg, for each trial, so record this mass in Table B for each velocity. Then, calculate the expected kinetic energy (KE) at each velocity. Use the formula KE = mv2,
where m is the mass and v is the speed. Record your calculations in Table B of your Student Guide.

Answers

Answer:

Based on the given instructions, you need to calculate the expected kinetic energy (KE) at each velocity using the formula KE = mv^2, where m is the mass and v is the speed. The mass is given as 0.250 kg.

Table B: Calculation of Kinetic Energy (KE)

Speed (m/s)Mass (kg)KE (kg m^2/s^2)20.2500.50030.2500.75040.2501.00050.2501.25060.2501.500

To calculate the kinetic energy at each velocity, multiply the mass (0.250 kg) by the square of the velocity.

For example, when the speed of the bottle is 2 m/s: KE = (0.250 kg) * (2 m/s)^2 = 0.250 kg * 4 m^2/s^2 = 1.000 kg m^2/s^2

Perform similar calculations for the other velocities and record the results in Table B.

Answer:

Explanation:mass of the bottle in each case is M = 0.250 kg

now as per given speeds we can use the formula of kinetic energy to find it

1) when speed is 2 m/s