Chemistry Middle School

which of the following can cause an algal bloom ?

Answers

Answer 1

Answer:

I believe its either C or D

Answer 2

Answer:

The answer should be B.

Related Questions

Please help I’ll give you brainliest.
If I have a Lithium atom with 1 valence electron, and one oxygen atom with 6 valance electrons. And then I add 1 valence electron from lithium to oxygen, is the lithium stable?

Answers

Answer:

Yes.lithium is stable

Explanation:

Because lithium needs lose the valence electron to become stable

What are the four main components of a galaxy?
A. Gas, dust, rock, and planets
B. Planets, stars, gas, and rock
C. Stars, clouds, orbits, and other objects
D. Stars, gas, dust, and other objects

Answers

It will be D stars, gas, dust, and other objects

The four main components of galaxy are Stars, gas, dust, and other objects

Galaxy is a any type system that contain stars,dust, stars remnants, interstellar gas, dark matter and other objects to form universe.

It is derived from Greek word which means milky ,hence it is termed milky way.

Galaxies have different shapes and variations in which the systems are formed.

Galaxies have different in structure and the king of activities that occur in them. Some are site of formations of vigorous sites and so on.

Therefore,

PLS HELP ASAP

How does the mass of an object affect its force?

Answers

Answer:

If mass increases, force increases.

Explanation:

hope this helps, pls mark brainliest :D

Which of the following is a combination of more than on simple machine?

A.Pulley
B.Wedge
C.Scissors
D.Incline

Answers

Answer:

Explanation:

Answer:

It is D. Incline

Compare and contrast the alkaline battery and a Zinc carbon battery. put in some other facts about them too. write somewhere around 2 paragraphs.

I'll mark brainlyest to whoever has the best answer and give them 50 points for helping me.

Answers

The alkaline batteries, have a higher energy density and the time a battery can remain in storage without losing any of its capacity. Also, there is a specially designed coating inside the batteries that reduces contact resistance for greater reliability. Lastly, the alkaline cells have an extra power formula to maintain power for a longer period of time in high drain devices. Alkaline batteries provide more energy than zinc carbon batteries.

The Zinc carbon batteries, are a reliable source of power for appliances that consume little energy. Some examples are: remote controls for televisions, clocks, and smoke detectors. A reason that you should use the Zinc carbon batteries is for, the low energy consumption. This will lead to being able to use the appliances for a longer time for the same money.

The difference between the batteries is the capacity. Because of composition, an alkaline battery, delivers more energy than a zinc carbon battery.
The only downside is that, both batteries need to be used in different appliances.

Hope this helps! :)

a sample substance has the chemical formula: H2CO3 , one molecule of the sample contains __ ????

Answers

Answer:

1,6,8

Explanation:

Periodic Table- H=1.C=6,O=8

Hydrogen is H, Carbon is C, Oxygen is O

Answer:

H=hydrogen

C=carbon

O=oxygen

H- 1

C- 6

o- 8

Explanation:

Water has 2 oxygen molecules and 1 hydrogen molecule

Your answer:

True

False

Answers

Answer:

false

Explanation:

water has 2 hydrogen molecules and 1 oxygen molecule. hint:H20

Answer:

False. There is 2 hydrogen and 1 oxygen molecules.

When a force on an object becomes stronger, how does its motion change?

The object produces less friction.
The object gradually stops moving.
The motion of the object reduces.
The motion of the object becomes greater.

Answers

Answer: The motion of the object becomes greater.

I think it is D not to sure pls don't hate if wrong :(

Explanation:

SCIENCE! PLZ HELP FAST !! URGENT!!
What happens to potential energy when you move against the magnetic force?

Answers

Answer: The field produces a repulsive force pushing them apart. They repel each other. In this case, the closer they are, the higher their potential energy will be. If allowed to move, they may move as far apart as possible or one will swing around to change its orientation.

Explanation:

EASYYYYYYYYYYY A batter hits two balls during practice. Ball A travels 10 meters, while ball B travels 12 meters. The batter decides to hit ball A with less force. How will this change the motion of ball B?

The motion of ball B will increase.
The motion of ball B will decrease.
The motion of ball B will stay the same.
The motion of ball B will become the same as ball A.

Answers

Answer:

The motion of ball B will increase

Explanation:

Because if you hit ball A with less force than ball B then that means that ball B will go faster because you had hit ball A will less force witch will not be as faster as ball B.

Answer:

The first one

Explanation:

What is the difference between a homogeneous and heterogeneous mixture?

Answers

A homogeneous mixture is made up of multiple different substances. (You can see different parts)
Ex: Cereal in milk or ice in soda

A heterogeneous mixture is a mixture that is mixed well. ( you can’t see the different parts)
Ex: Rain or air

You wake up in the morning and make yourself a cup of coffee. You pour the coffee in your cup, add milk, add sugar, and stir everything together. The result is a uniform cup of caffeinated goodness. Each sip should taste and look the same.

This is an example of a homogeneous mixture. In this type of mixture, the components are evenly distributed throughout and the mixture has a uniform appearance. You shouldn't be able to pick out the individual components. Additionally, you can describe a homogeneous mixture as having only one phase. A phase is any part of the mixture that has the same chemical properties and uniform distribution of the components.

Heterogeneous

When you're eating a bowl of cereal, you are consuming a heterogeneous mixture. You can easily see the different things that make up this mixture: the milk and the cereal. Each spoonful will have different distributions of the components.

A heterogeneous mixture has components that are not evenly distributed. This means that you can easily distinguish between the different components. A heterogeneous mixture has two or more phases. This doesn't necessarily mean phases of matter, like liquid or solid. For example, a mixture of water and oil has two liquid phases. Each phase has its own distinct chemical properties.

Can someone help me rq??? :))

Answers

you can use a fruit that grows on a tree, talk about the sun and everything that goes into growing

Something I ate was a banana things that are natural that helped in its creation and growth include soil, sun, and water/rain.

What is needed in order to create nuclear power? CHECK ALL THAT APPLY.

Uranium

Carbon

Atoms

Oxygen

Molecules

Answers

Answer:

uranium and atoms

Explanation:

should be uranium and atoms

How do matter and energy move through an ecosystem?
My scientific explanation is:

Your answer should include at least 6 complete sentences to explain the claim, evidence and reasoning.
Be sure to check your grammar and spelling.

Answers

Food chains allow energy to move through an ecosystem. For example, energy is transferred from organism to organism such as the sun gives energy to grass, grass gives energy to grasshoppers when they eat grass, mice eat grasshoppers, and snakes eat mice, eagles or bigger birds of prey eat snakes. A technique discovered by Charles Elton named energy pyramids display how energy is dispersed on a pyramid starting from producers to tertiary consumers. An example of a producer would be grass, primary consumer would be a grasshopper (herbivores), a secondary consumer would be a mouse/mice (eat herbivores), and a tertiary consumer (eat secondary consumers) would be an owl. Starting from the bottom of the energy pyramid (producers) to the top (tertiary consumers) it 10% of energy is available to travel up the pyramid. That is your scientific explanation!

Explain the Flow of Energy in Photosynthesis: Where does the Energy come from initially? What is it called? What type of energy does it become? Finally what type of Energy is it broken down into? How does this all happen? Explain with details! I really appreciate your help

Answers

Answer:

The flow of photsynthesis comes from the sun

Explanation:

in which the plant absorbs. The plant then turns it into a type of food like glucose, protein, vitamin c etc. the plant uses this energy to help it grow!

Hoped this helped :)

plants absorb sunlight and use carbon dioxide to produce glucose and oxygen

Help! Please :) Thank you

Answers

First one??

I believe this is the correct answer

____ relating to the separation of charges in a molecule
___ meaning to repel water, literally “fear of water”
__ this term describes the force of attraction between adjacent water molecules.
___ meaning attracted to water or literally “water loving”
___ term describing the tensional force created by water at its boundary with air
Word bank: Hydrophobic, Hydrophilic, surface tension, cohesion, polarity

Answers

Answer:1.polarity

2. Hydrophobic

3. Cohesion

4. Hydrophilic

5. Surface tension

Explanation:

PLZ HELPPPPPPPPPPPPP
Look at the table that shows values for Coast Guard search and rescue operations. Write an evaluation of the success of the Coast Guard’s efforts. Be sure to support your answer with evidence from the data table.

Answers

Answer: 20%

Explanation: that is the nuber of cases by thenuber of death rate

The answer is 20% hope this help

please help me!!
she makes model of a plant cell she viewed using a microscope. The scale is 1 um: 0.5 cm. The student
includes 6 mitochondria in the model.
How many mitochondria do the student see in the real cell?

a.9
b.3
c.6
d.12

Answers

Answer: c is 6 and that is the answer

Explanation: I took the test and got a 100

The illustration shows volume levels of a liquid in a graduated cylinder before and after a mineral sample was placed into the graduated cylinder.
liquid, only, liquid, and, mineral,

According to this information, what was the volume of the mineral sample to the nearest milliliter?
9 mL
11 mL
47 mL
48 mL

Answers

Answer:

It's D.

Explanation:

Have a nice day.

48 ML I think :) I hope it’s right

What element has the most Protons/ Neutrons/ and electrons.

Answers

Answer:

gold

Explanation:

Which of the following elements does NOT need to be diatomic to exist in nature?

A. Hydrogen
B. Oxygen
C. Carbon
D. Nitrogen

Answers

I am pretty sure it is A

I need to write an essay on the help benefits of plants! You do not need to write an entire essay, but I would like points and website links! Thanks.

Answers

Talk about photosynthesis, the nitrogen cycle carbon cycle etc. For websites I suggest Brittanica or really any secure website that ends in .org, they tend to be the most accurate.

Put two books on top of your wooden block and calculate the sliding force of friction. Write your answer below. Sliding force of friction with weights 4.2 newtons. How does weight influence the sliding force of friction? Explain using the data above.

PLEASE HELP

Answers

Answer:

I need this answer too!!!!!!!!!

Explanation:

Identify the force used on your arm when you walk a dog on a leash and it tries to chase something.

Friction
Gravity
Strong pull
Weak push

Answers

answer is strong pull

Answer: The force used on your arm when you walk a dog on a leash and it tries to chase something is known as Strong pull.Strong pull is defined a physical force which is usually aggressive orcoercive and it involves the movement in a particular direction due to different factors or reasons. The Dog in the example has a leash on and applies a force in the direction ofthe thing it wants to chase which is a perfect example of a strong pull.

Explanation: please give me a brainlist

Materials move across a cell membrane in a process called _______.

Answers

Answer:

Diffusion

Explanation:

Osmosis? Diffusion?

Pollen is transferred from the stamen of one flower to the stigma of another. What has occurred?

Answers

Cross-pollination is the transfer of pollen from the anther of one flower to the stigma of another flower on a different individual of the same species. Self-pollination occurs in flowers where the stamen and carpel mature at the same time, and are positioned so that the pollen can land on the flower's stigma.

I think that does little animals are Making honey

What happens when weathering and erosion work together? A.Weathering B.Raining C.Erosion D.breaking
BRAINLIEST

Answers

Answer:

CCCCCCCCC

Explanation:

This separation of charge on (blank) of the molecule is called (blank).

Answers

Answer:

Polar and Non-Polar Molecules

Explanation:

Polar and non polar

How are the volvox, euglena, paramecium, and amoeba similar and different in how they move, and eat?

Answers

Answer:

Both can hunt for their food (heterotrophs), but euglena can also make their own food (autotroph) with its chloroplasts. Amoeba have pseudopods to move/eat, but euglena have flagella to move. How are euglena and paramecium similar and different? ... Both also use flagella to move, but volvox move together in colonies.

Explanation:

Answer: wattskennedy is right

Explanation:

Other Questions

Imagine a homicide has taken place in your area and the CSI team has approached you to help document the crime scene. You need to prepare a narrative of the crime scene. Write a paragraph on what you see at the crime scene. Include articles such as tables, chairs, beds, and so on, and evidence such as weapons, blood, hair, and so on that you see at the crime scene in your narrative. Draw a rough sketch of the crime scene showing the articles of evidence. what's government groups are required to be involved in the amendment process Please help I dont get it Which statement best describes the Harlem Renaissance of the 1920s? The poet uses the words "gale" and "storm" as metaphors. What might these words represent?a) Times of bad weatherb) Hard or painful timesc) Pleasant Timesd) Times of success and growth HELP PLZ You dont have to solve all of them just do the ones you know! Name 3 colors that are Analogous to one another.What is the result when you use analogous colors together? Time:40:33 WILL MARK BRAINLiEST How did Legalism influence Emperor Shi Huangdi of the Qin dynasty?It influenced the emperor to adopt strict laws to keep control.It caused the emperor to become afraid of nomadic invasions.Olt inspired the emperor to honor nature and promote its worship.O It encouraged the emperor to practice kindness toward citizens. a 17kg box sitting on a shelf has a potential energy 350 J. How high is the shelf? Round your answer to the nearest whole number What is true of electrons?1. They are negatively charged and located inside the nucleus 2.They are positively changed and located inside the nucleus3. They are negatively charged and located outside the nucleus 4. They positively changed and located outside the nucleus Warren Anderson's annual salary is $54,500. His personal exemptions total $1,500. The annual taxwithheld is: 1.5 percent of the 1st $1,000, 3.0 percent of the next $2,000, 4.5 percent of the next $2,000, and5.0 percent over $5,000. How much is deducted annually for state income tax?A. $2,400B. $2,565C. $2,725D. $2,890 Should I be concerned if I'm having bowel movements sometimes every day and sometimes every 5 days, but no hard stools? Please explain Select the correct answer. Tim gave his house in another city to his sister. He had to pay taxes to the government on this transfer. What type of tax did the government levy? A. estate tax B. excise tax C. gift tax D. property tax E. sales tax Skylar wants to improve her fitness level for a chance to be on the rowing team. She has been rowing 23 times per week at 9 m.p.h. at her local gym for 30 minutes, with her heart rate increasing to between 155170 beats per minute. She is using the frequency principle to improve her fitness level when she increases her: a) days rowing to 45 per week b) heart rate to 165180 beats per minute c) rowing speed to 1112 m.p.h. d) time rowing to 4045 minutes per session Sora correctly solved this inequality.-2. 1w> 12.81w Guess :D First right is brainliest This night is cold in the kingdomI can feel you fade awayFrom the kitchen to the bathroom sink andYour steps keep me awakeDon't cut me down, throw me out, leave me here to wasteI once was a man with dignity and graceNow I'm slippin' through the cracks of your cold embraceSo please, pleaseCould you find a way to let me down slowly?A little sympathy, I hope you can show meIf you wanna go then I'll be so lonelyIf you're leavin', baby, let me down slowlyLet me down, down, let me down, down, let me downLet me down, down, let me down, down, let me downIf you wanna go then I'll be so lonelyIf you're leavin', baby, let me down slowlyCold skin, drag my feet on the tileAs I'm walking down the corridorAnd I know we haven't talked in a whileSo I'm looking for an open doorDon't cut me down, throw me out, leave me here to wasteI once was a man with dignity and graceNow I'm slippin' through the cracks of your cold embraceSo please, pleaseCould you find a way to let me down slowly?A little sympathy, I hope you can show meIf you wanna go then I'll be so lonelyIf you're leavin', baby, let me down slowlyLet me down, down, let me down, down, let me downLet me down, down, let me down, down, let me downIf you wanna go then I'll be so lonelyIf you're leavin', baby, let me down slowlyAnd I can't stop myself from fallin' (down) downAnd I can't stop myself from fallin' (down) downAnd I can't stop myself from fallin' (down) downAnd I can't stop myself from fallin' (down) downCould you find a way to let me down slowly?A little sympathy, I hope you can show meIf you wanna go then I'll be so lonelyIf you're leavin', baby, let me down slowlyLet me down, down, let me down, down, let me downLet me down, down, let me down, down, let me downIf you wanna go then I'll be so lonelyIf you're leavin', baby, let me down slowlyIf you wanna go then I'll be so lonelyIf you're leavin', baby, let me down slowly Find the area and perimeter of the original planned patio and the new planned patio. MIT HINDI MT Luis decided to make the patio 2 feet longer. The drawing shows his new plans for the patio. New planned patio 8 feet 10 feet 2 feet Matter is defined as anything that has weight and takes up space. how can you determine the additive inverse of a number. What is the sum of a number and its additive inverse? Question 1: The slope of the line that goes through (5,12) and (10,9) is?Question 2: The y-intercept of the line that goes through (5,12)and (10,9) is?