Answers
Rarefaction: B
Wavelength: C
2. B
3. C
yw !!!
Related Questions
What do you think the nervous system controls ?
Answers
Answer:
movement, thought and memory.
Explanation:
Your nervous system guides almost everything you do, think, say or feel.
Answer:
Your nervous system is your body's command center. Originating from your brain, it controls your movements, thoughts and automatic responses to the world around you. It also controls other body systems and processes, such as digestion, breathing
Explanation:
Answer as many as you'd like (Please write the number of the one you answer)
Unit 5 - Chemical Reactions
Chemical Change/Law of Conservation
1. What is the law of conservation of mass?
Observing Chemical Change
2. How can Changes in Matter Be Described?
3. How do you identify a chemical reaction?
Describing Chemical Reactions
4. What information does a chemical equation contain?
5. How is mass conserved during a chemical reaction?
6. What are three types of chemical reactions?
Controlling Chemical Reactions
7. How do reactions get started?
8. What affects the rate of a chemical reaction?
Answers
Answer:
1. The law of conservation of mass states that in a chemical reaction mass is neither created nor destroyed. For example, the carbon atom in coal becomes carbon dioxide when it is burned. The carbon atom changes from a solid structure to gas but its mass does not change.
2. There are two types of change in the matter: physical change and chemical change.
3. Change in the arrangement of Chemicals
4. A chemical equation consists of the chemical formulas of the reactants (on the left) and the products (on the right). The two are separated by an arrow symbol (read aloud as yields). Each individual substance's chemical formula is separated from others by a plus sign.
5 During the rearrangement of atoms mass is conserved unless u add more substances
6. synthesis, decomposition, combustion,
Explanation:
I hope this helps, I don't remember the exact answers,
3. A chemical reaction is very different from a physical reaction.Chemical changes rearranged their molecules to make a new substance that is not undo able. One way you can identify them is if they have a gas reaction. A gas reaction is something you can’t undo because it arranged it’s particles into that reaction and gas molecules become carbon molecules in the air. Another way you can find a chemical reaction is seeing a temp change for example food. Once you make a cake you can’t Un bake it.
7. I believe reactions happen because something has effected the thing/object to make it react to it.
can someone help me with it
Answers
Answer:
wind is free fuel and government taxes on its uses are lower than those on fossil fuel use
explain the following statement. "all ellipticals are galaxies, but not all galaxies are elliptical"
Answers
Answer:
There are many elliptical galaxies and they are galaxies but not all galaxies are elliptical because you have many kinds of galaxies like spiral and irregular.
Explanation:
can someone help me with it?
Answers
A(n) __________ is all the living and nonliving things in a particular area that interact with one another.
A. biome
B. community
C. ecosystem
D. population
Answers
Answer:
C. ecosystem
Explanation:
The answer is C.
100 POINTS!!! WILL GIVE BRAINLIEST! HURRY! (LAB: Effects of Human Activity on Freshwater Resources)
Writing the Lab Report
Now you will use your answers from the four questions above to write your lab report. Follow the directions below.
Section I: Overview of Lab
Use 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 Conclusions
Use 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.
Overall
When 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.
Answers
Answer:
Which evidence from the text best supports the answer to Part A?
“Solar panels do not give off harmful gases. They do not produce toxic chemicals. So pollution levels will drop. Big cities will have less smog. There will be fewer health problems from breathing dirty air. Rivers and streams will also be less contaminated. Drinking water will be cleaner. Wildlife will flourish.”
“For example, solar energy is championed by scientists. More than a dozen professors, engineers, and academics participated in the study cited above. They stated that the ‘main goal’ of American solar policy should be ‘a massive scale-up of solar generation...’"
“Power blackouts will be less common. Spikes in electricity prices will disappear. There won’t be as many noisy power plants. Fewer ugly oil rigs will dot the landscape. And Californians will be proud that their state is leading the way in protecting the planet.”
“Workers will have to build solar panels. Truck drivers will have to deliver them. Some technicians will have to install them. Others will have to maintain them. All of these people will earn good wages. And as they spend those wages, they’ll support other businesses. That will create a positive economic ripple effect.”Explanation:
answer:
Today we learned about how human activities affect freshwater resources, during the assignment we learned about several things that could affect water quality. By watching videos and also participating in adding stuff into water to see the levels you would get. Learning about the water levels and how they can be affected by certain things were a little bit easier with the interactive assignments. I think using a regular table graph would help and would be the most effective way to get and give information. And if i could improve my lap assignment i would make it more clearer to understand and maybe make more sense.
source:
trust me bro
Which of these are examples of alternative forms of producing energy?
A) Oil, Gas, Coal
B) Bikes, Scooters, Mopeds
C) Energy Saving Light Bulbs, Dimmers
D) Wind, Solar, Hydro-Electric
Answers
Answer:
I think the answer is
D Wind, Solar, Hydro-Electric
Explanation:
what is the dot and cross diagram for potassium nitrate
Answers
The number of electrons in each of Potassium's shells is [2, 8, 8, 1] and its electron configuration is [Ar] 4s1.
If you Guess my brother name I will let you know if you are correct or not:
A. Da`Shaun
B.Ja`Quan
C.Alfredrick
D.Christopher
E.Ja`Kuan
F.Ja`corn
Answers
Answer:
B
Explanation:
I think b is the right answer
Have an amazing day!!
PLEASE RATE AND MARK BRAINLIEST!!
Answer:
A
Explanation:
B
C
D
E
F
hot, humid, close to the equator. Match the climate zone to the correct climate description
Answers
i need help with this
Answers
Answer:
Search up Cell Divison Reinforcement key and it pops up
Explanation:
Literally took 30 seconds to find online or individually ask every question.
(GIVING BRAINLYIST) The Dart Frog is a brightly colored frog. These bright colors could mean that this frog is poisonous,
warning predators to stay away. Plants in the rainforest are normally crowded and have very little
space. The big leaves of a Hosta Plant allow the plant to receive as much sunlight as possible when
the sun is out.
What type of adaptations are these? Compare and contrast the adaptations of the Dart Frog and the
Hosta Plant. Your answer should be 3–4 sentences long.
Answers
Answer:1)poison dart frogs live in rainforest habitats in Central and South America.
2)they can be found in trees, as well as under leaves and locks and rocks on the floor of the forest.
3)because of their size from 1/2 to 2 inches long, they are hard to see.
characteristics of Hosta Plants:-
1) hostas( Hosta spp.) originate from Asia and are also known as plantain Lilies.
2)this genus of herbaceous perennials consists of 40 species with thousands of hybrids.
3) there are currently 5 size categories for the typical size of a mature Hosta clump.
Explanation:
Which type of bond does the phrase “opposites attract” apply to best? Explain.
Answers
Answer:
The phrase "opposites attract" is true for atoms. The positively charged ion (cation) and the negatively charged ion (anion) are attracted to each other. It is this attraction, created by the transfer of electrons, that forms the ionic bond. The transfer of one electron creates a single bond.
Explanation:The phrase "opposites attract" is true for atoms. The positively charged ion (cation) and the negatively charged ion (anion) are attracted to each other. It is this attraction, created by the transfer of electrons, that forms the ionic bond. The transfer of one electron creates a single bond.
Answer:
phrase opposites attract definitely describes ionic bond because this is the only type of bonds that requires positive charge in one atom and negative charge in other atom to form an ionic compound. HOPE THIS ANSWER YOUR QUESTION!!!
THIS IS NOT A QUESTION!! THIS IS AN ANSWER!!
Day 2 of answering random questions i get asked in my classroom:
How does an Ecosystem Function?
When left to itself, an ecosystem functions like a well–oiled machine. The plants and animals that live in an ecosystem depend on each other for life; this means they are interdependent. Each individual life form does its part to provide for the other lives in the ecosystem community. Let us look at the ocean ecosystem again and start at the beginning. All living things need energy to survive. For example, the seaweed in the ocean gets its energy from the sun. There are fish, like sea carp, that eat the seaweed. The carp get their energy from eating these plants. Then, there are other fish that eat the carp. For example, a sea bass may eat the carp, and a shark may eat the sea bass, and so on. This is called a food chain or a food web. Each part of the chain is connected. Each part depends on the next for the energy to survive.
Answers
Answer:
Yes! That is correct.
Explanation:
An ecosystem is one that works on it own, though each individual plays its part.
Write a reflection about your learning in this unit. Your reflection should be at least 3 sentences. Use the following sentence starters as a guide.
• I feel confident that I can build a model of the food chain because...
• The food chain impacts my daily life because...
• I can use evidence to show plant matter does not come from soil by...
Answers
Answer:
This unit has encouraged a deeper understanding of the world and it's guiding principles. While it was initially challenging for me to determine if a change was physical or chemical, this unit provided me with the information necessary to determine the type. With this knowledge, I can now interrelate with other properties and believe that this new ability will assist in future units as well. Thank you!
Explanation:
Please Help me (I'll give brainlest) (LIMITED)
Answers
Answer:
option 2
Explanation:
option 2 is the only one where a living organism, humans, interacts with a nonliving organism, granite, to build homes. All other options consist of living things interacting with living things.
Please Help me (I'll give brainlest) (LIMITED)
Answers
Answer:
D, I guess…
Explanation:
hope this helped man.
can someone help me with it??
Answers
Answer:
inexpensive fuel
Explanation:
Use kinetic molecular theory to describe the changes in temperature, particle motion, and kinetic energy when thermal energy is added to solid chocolate. Be sure to explain the process by describing how the particles in chocolate move relative to each other in both the solid and liquid state, as well as what happens during the phase change. Then describe the changes in particle motion, temperature, and kinetic energy when liquid chocolate is poured into a mold.
Please Do a C.E.R
Claim
Evidance
Reasoning
Answers
Answer:
Matter is made up of particles that are constantly moving.All particles have energy, but the energy varies depending on the temperature the sample of matter is in. This in turn determines whether the substance exists in the solid, liquid, or gaseous state. Molecules in the solid phase have the least amount of energy, while gas particles have the greatest amount of energy.The temperature of a substance is a measure of the average kinetic energy of the particles.A change in phase may occur when the energy of the particles is changed.There are spaces between particles of matter. The average amount of empty space between molecules gets progressively larger as a sample of matter moves from the solid to the liquid and gas phases.There are attractive forces between atoms/molecules, and these become stronger as the particles move closer together. These attractive forces are called intermolecular forces.
Both wave power and nuclear energy can be used to produce electricity. What
is one advantage of nuclear energy over wave power?
O A. Nuclear energy can produce electricity that is cleaner than the
electricity produced by wave power.
O B. Nuclear energy is based on technology that is cheaper to build
than wave power.
C. Nuclear energy can be produced anywhere, but wave power is
available only near the ocean.
O D. Nuclear energy is nonrenewable, but wave power is renewable.
Answers
Answer:
B is correct answer
....
Explain how temperature and precipitation are affected by latitude and the sun's rays.
Answers
At the equator, the Sun's rays are most direct. This is where temperatures are highest. At higher latitudes, the Sun's rays are less direct. The farther an area is from the equator, the lower its temperature.
explain why the reactivity of group 1 metals increases as you go down the group.
Answers
Answer:
This is because the energy levels increases as you move down the group
Explanation:
what is the concentraction of H+ ions at a pH=11
Answers
Explanation:
I hope it's helpful for you
Answer:
1x10⁻¹¹
Explanation:
pH = -log [H+]
10⁻¹¹ = 1x10⁻¹¹
Thermal energy will flow from the person to the desk
Answers
8. How many of the substances listed in the table will float in liquid water if the water has a density of 1g/cm3?
A. none
B. three
C. two
D. one
Answers
Explanation: If the density is higher than 1 it means it’s more dense than water and will sink
Please Help
What step in the water cycle is happening when liquid water becomes water vapor?
Question 3 options:
Evaporation
Condensation
Precipitation
Runoff
Answers
Answer:
evaporation is the answer
Which materials accept a charge better than others
Answers
Answer:
need the options
Explanation:
no options
Answer:
what options?
Explanation:
pleeeeeeeeeeeeeeeeeeas help
Answers
Answer:
For young organic materials, the carbon-14 (radiocarbon) method is used. The effective dating range of the carbon-14 method is between 100 and 50,000 years.
Explanation:
The answer is the explanation.
CAN SOMEONE ANSWER THIS QUICKLY, PLEASE
Review this temperature anomaly chart, for the World, from Dec 15, 2008- Jan 15, 2022. What trend do you see?
Question 3 options:
The overall temperature around the world has remained constant.
The overall temperature around the world has a .5 degree increased.
The overall temperature around the world has a .5 degree decreased.
The overall temperature around the world has a .15 degree decreased.
Answers
can you go into more detail pls?
The overall temperature around the world has a .15 degree decreased. i just did all three times and this is the one that i did not choes and i got a 75% all times