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
Related Questions
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:
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
What evidence do scientists have to support the big bang theory as the origin of the universe?
Answers
Explanation:
Two major scientific discoveries provide strong support for the Big Bang theory: • Hubble's discovery in the 1920s of a relationship between a galaxy's distance from Earth and its speed; and • the discovery in the 1960s of cosmic microwave background radiation.
Answer:
Hubble's discovery in the 1920s of a relationship between a galaxy's distance from Earth and its speed; and • the discovery in the 1960s of cosmic microwave background radiation.
Explanation:
Please help its also urgent ( I have 7 more questions)
Answers
Answer:
The answer is D) High Temperature and Little Rainfall
Explanation:
Answer:
ITS D
Explanation:
ITS d i hope this helps you
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
one spoonful of drink crystals has a mass of about 4g. Calculate the mass of the crystals that dissolved in 100mL of water to form a saturated solution
Answers
Answer:
We want Concentration=Mass of solute100 mL volume of solvent . We make the reasonable assumption that the volume of solution is equal to 40⋅mL
hot, humid, close to the equator. Match the climate zone to the correct climate description
Answers
How can a chemical reaction be sped up?
Select from the drop-down menu to correctly complete the statement.
Increase the
A.) Catalyst
B.) Concentration
C.) Surface Area
D.) Temperature
to allow the reaction to happen with more energy.
Answers
Answer:
Temperature i think
Explanation:
Answer:
A catalyst
Explanation:
Remember, Resistance = Voltage/Current
How much resistance allows a 6 V battery to produce a current of 0.006 A?
a.) 1000 ohms
b.) .036 ohms
c.) 100 ohms
d.) 0.36 ohms
Answers
This question is asking us to find the resistance (Ohms) of a circuit. 6V/0.006A = 1000 Ohms. :)
Isabel pushes a toy car, giving it kinetic energy. When this happens, what happens to the energy in her arm?
A) The energy in her arm increases.
B) The energy in her arm is destroyed.
C) The energy in her arm decreases.
D) The energy in her arm stays the same.
Answers
Answer:
c the energy in her arm decrease
Answer:
it's either C or D try C
srry if im wrong
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.
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.
Which statement describes the nutrient cycle?
the movement of nutrients within all soil layers that allow plants to grow and seeds to germinate
the movement of nutrients from the physical environment into living organisms and back again
the movement of the three non-mineral nutrients that are absorbed through the soil
the movement of nutrients within plants that allows them to conduct photosynthesis
Answers
Answer:
This Soils and Plant Nutrients Chapter from the Extension Gardener Handbook examines the physical and chemical properties of soil
Answer:
i have no clue tell me
Explanation:
Which statement describes the nutrient cycle?
the movement of the three non-mineral nutrients that are absorbed through the soil
the movement of nutrients within all soil layers that allow plants to grow and seeds to germinate
the movement of nutrients within plants that allows them to conduct photosynthesis
the movement of nutrients from the physical environment into living organisms and back again
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:
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
i need help with this
Answers
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:
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:
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
can someone help me with it?
Answers
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.
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.
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.
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.
How was sending your light and sound messages similar to the way that digital messages are sent?
Answers
Answer:
Morse code can communicate letters and numbers using light or sound. Sailors on ships can flash lights using Morse code to send messages from one ship to another. Morse code is a way to communicate over distances. Morse code can communicate letters and numbers using light or sound.
One city is located north of the equator and experiences average rainfall and warm temperatures. Another city is located exactly the same distance from the equator, but south. How will these two climate areas be the same or different?
The temperature and precipitation will both differ.
The temperature and precipitation will be similar.
The temperature will differ but the precipitation will be the same.
The precipitation will differ but the temperature will be the same.
Answers
Answer:
Temperature gets warmer and precipitation increases
Explanation:
...pretty sure i researched it to verify
Answer: It's is not c or d
Explanation: I can not find the correct answer it will differ between A and B
SORRY I COULDN'T HELP MORE
Please help 20 points!
What is the thermocline?
Question 10 options:
a slope in the ocean
an instrument for measuring temperature in the ocean
a zone of rapid temperature change between the warm surface waters and the cooler deep waters
the warmer upper layer of the ocean
Answers
Good luck :)
Follow these steps:
Carefully measure out 3 Tablespoons of cold water into the jar.
Now measure out 1/8 teaspoon of salt and put it into the jar with the water. Put the lid on the container and shake it. Keep shaking until the salt is completely dissolved. To determine whether it has completely dissolved, hold the container up to the light and look carefully at the bottom, or open the lid and look into it. If you see little grains of salt there, it is not completely dissolved, so keep shaking until it looks the same each time you look.
If the salt does not dissolve completely after five minutes of vigorous shaking, write this in your notebook and go on to step 4. If the salt dissolves completely, add another 1/8 teaspoon of salt and repeat the process. Repeat over and over, keeping track of how many 1/8 teaspoons you add. Stop when you can’t get the salt to dissolve no matter how hard or long you shake the container.
Record how much salt you were able to dissolve in the 3 Tablespoons of water in the solubility data table.
Repeat steps 1-4, but this time using very warm or hot water. Before you do it, run the jar under hot water to warm it up so the water doesn’t cool off right away. Be sure to use the same amounts of water and salt as you did the first time. The only variable should be the temperature of the water.
Record your results, and then compare them with your previous results.
Were there any differences in the amount of salt that dissolved in the warm water versus the cold water?
Answers
Answer:
Alot of salt dissolved in warm water than in cold water
Explanation:
This is because cold water does not dissolve alot of salt and hot water dissolves alot of salt because of the kinetic energy acting on the liquid
can someone help me with it??
Answers
Answer:
C. Kinetic Energy
Explanation: