Chemistry Middle School

A reaction in which one element replaces another in a compound or in which two elements in different compounds trade places is called a(n)

Answers

Answer 1

Answer:

Single Replacement reaction

Explanation:

is a reaction in which one element is substituted for another element in a compound.

Answer 2

It would be simple rejection

Related Questions

Energy is inversely proportional to the wavelength of a wave. Which of these waves would have the greatest energy?

Answers

Answer: 2

Explanation:

The answer is actually one because of the height of the wave. Think about if you were moving a slinky like this with your hand. You would use more energy to move it further up and down rather than only a little bit of energy with number two. Hope this helps, have a great day! :)

PLZ HELP ME THIS IS DUE TODAY
Which organelle aids in the production and movement of proteins and other materials through the cell?

lysosome
endoplasmic reticulum
cytoplasm
cell wall

Answers

Answer:

endoplasmic reticulum

Explanation:

I just took a test that had this question and this was the answer.

Endoplasmic reticulum

HELP PLS 5 MINUTES
Which statement best compares competition, cooperation, and predation between two organisms?

Cooperation is a positive interaction between the two organisms, and predation and competition result in a negative interaction for at least one organism.
Cooperation and competition are positive interactions between the two organisms, and predation results in a negative interaction for at least one organism.

Cooperation and predation are negative interactions between the two organisms, and competition results in a positive interaction for at least one organism.\

Cooperation results in a negative interaction for at least one organism, and competition and predation are positive interactions between the two

Answers

Answer: Its the First One

Cooperation is a positive interaction between the two organisms, and predation and competition result in a negative interaction for at least one organism.

Explanation:

predation is preying on the other so its negative for at least one of them.

competition is fighting so its negative for at least one of them.

Cooperation makes them help each other so its positive.

Answer: predation is preying on the other so its negative for at least one of them.

competition is fighting so its negative for at least one of them.

Cooperation makes them help each other so its positive.

Think about a pond ecosystem and come up with 3 examples of biotic and abiotic relationships.

Answers

Biotic relationships are living and abiotic are not living

Answer: 3 examples of relationships between abiotic and biotic factors in the ecosystem are plants use sunlight, water, and carbon dioxide to make food. Another example is the interaction between turtles and soil, some turtles are known to bury themselves in the soil. Elephants and water interact as well in order to stay hydrated elephants drink water.

Explanation:

Which product has a bitter taste, is slippery when mixed with water, and can damage skin and eyes?

sodium hydroxide

lactic acid

acetic acid

citric acid

Answers

Answer:

sodium hydroxide

Explanation:

its a base and it can damage skin

Sodium hydroxide is the right one (:

A praying mantis eats a bee.

Tell which type of relationship it is: mutualism, predation, parasitism, competition, or commensalism. Give details on why.

Try for 2 sentences:

I think a praying mantis eating a bee is an example of....

I think this because...

Answers

Answer:

I think a praying mantis eating a bee is an example of predation. I think this because the praying mantis stealthily hunts its preys, like the bee, in order to kill eat for food.

Explanation:

"Predation" refers to the killing of another living organism in order to prolong the life of the "predator" (hunter) and to end the reproductive life of the "prey" (the one being consumed). The praying mantis is popularly known for being a deadly predator because it feeds on several insects (as its prey), including the bees. They are said to also feed on wasps, moths, mice, frogs, rodents and even snakes.

It kills the bees in order to consume them so it can prolong its reproductive life. It then stops the reproductive life of the bees. Clearly, the type of relationship here is "predation."

I think a praying mantis eating a bee is an example of predation.

I think this is because the praying mantis which is a predator consume the prey which is the bee most times in a defensive manner.

Predation is a biological relationship in which a predator kills or consume it's prey.

It's occur majorly in canivorous animals that consume flesh or other animals.

The predators consume the prey as food and as a form of defensive means from been attacked by the prey.

In this relationship, energy is transfered from the prey which is the bee to the praying mantis.

Therefore, the relationship that occur between praying mantis and bee is predation.

How to work out the relative mass of potassium? What is the calculation? ( explained very easily )

Answers

Answer:

Explanation:

Relative mass does not need to be calculated as it is listed on the periodic table. Potassium's relative atomic mass is around 39.

Relative Atomic Mass = Mass of one atom
———————————
(1/12)th Mass of one C12 atom

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

Plz help! Everything is below!

(Brainliest and Points)

Answers

Answer:10,000

Explanation:When you look at the chart at 15 degrees, it is at 10,00. Hope this is right <3 Sorry if not :)

7,000. You can see on the graph that at the starting point, the number of bacteria was 3,000. 4 days (96 hours) later, the number of bacteria is at 10,000. The number of bacteria increased by 7,000 to get to 10,000.

what is a controlled variable for ionic bonds and covalent bonds?

Answers

Answer:

controlled variable is a variable that is kept constant during a controlled experiment and covalent bond is a chemical bond formed when two atoms share electrons.

Explanation:

controlled variable is a variable that is kept constant during a controlled experiment and covalent bond is a chemical bond formed when two atoms share electrons.

What needed to be present in marine mud to form fossil fuels?

Answers

Carbon and Hydrogen.

Answer:

Mostly decaying organisms are needed to present in marine mud to form fossil fuels.

Explanation: When organisms and plants died and sank to the bottom of swamps and oceans, brown soil-like materials called peat are formed. Over millions of years, the peat became covered with sand, clay and other minerals and the peat is converted into layers of sedimentary rocks. After a long time, different type of fossil fuels are formed.

what is required in order to determine whether or not an object moves

Answers

Answer:

. a reference point is required to determine whether or not an object moves

Explanation:

Answer:I would say gravity, The way the object is shaped..? You'll also need a reference point to figure out if the object is moving or not. I hope I helped! <3

Explanation:

What was one was one important impact of Supreme Court's ruling in Bush v. Gore

Answers

Answer: the answer is b or c

Explanation:

I took it

The answer is C, i took that test before and got it right

Do you think prevailing winds can affect climate zone distribution? Explain your reasoning with evidence

Answers

Answer:

Prevailing winds are the result of atmospheric circulation cells. They influence the climate of a region. Rising and sinking air can influence the precipitation of a region. Atmospheric circulation cells create the general climate of a region.

Explanation:

what kind of substances and mixtures do you see around you? How do their properties determine what they used for?

Answers

Answer:

look around your property you'll find something!

Explanation:

What kind of rocks would you expect to see on Mars? What evidence supports your response?

Answers

Mars' surface is largely covered with basalt, a volcanic rock covering much of Earth's surface as well. Earth has large amounts of granite in its crust, which Mars appears to lack.

Based on the composition of the martian meteorites and the presence of plains and mountains that look like features produced by basaltic volcanism on Earth, geologists expected to find primarily basalts on Mars.

Pls can you help me, I give you brainlient if I get it right, Because of you!

Which statements describe events that occur during interphase? Check all that apply.

A cell grows to its full size.
The cytoplasm of the cell divides.
The nucleus divides into two identical nuclei.
Two identical cells are formed.
The cell copies its DNA.

Answers

Answer:

A cell grows to its full size

Cytoplasm is not the correct form of DNA

what is the function of the two microscope lenses?

Answers

The fiction is b because the terms mean subtract

I looked it up but I still couldn’t find the answer

Iodine is used to detect and treat thyroid cancer. When iodine-131 gives off a beta particle, what is the new isotope called?

Answers

Answer:

Xenon- 131

Explanation:

Iodine- 131 ------------------> Xenon -131 + Beta particle

could some please help me with this? thank you

Answers

Answer:

Explanation:

Oxidation occurs at the anode. That means the element's oxidation number should increase. Mg has an oxidation number of 0, but Mg2+ has an oxidation number of 2, showing it was oxidized.

Why are rocks important to geologists? Check all that apply.

A. They give clues about Earth’s past environments.

B. They present opportunities for future use in technology.

C. They contain valuable resources used for building.

D. Many people like to collect different types of rocks.

E. Rocks are important to modern transportation.

Due in 5! asap please! thanks have a good day!:)

Answers

Answer:

I think it's A

Explanation:

They probably have fossils inside and other designs about dead or extinct creatures

Answer:

abc

Explanation:

got it right

which is a mixture?
A. Water reacting with oxygen
B. Salt dissolved in water
C. Sodium and chlorine in a molecule
D. A solid aluminum pan

Answers

Answer:

B. salt dissolved in water

Explanation:

a mixture is multiple substances mixed together

B salt dissolved in water

Simple and complex molecules are similar in that they both involve ____ atoms A water B simple C bonded D complex

Answers

Answer:

The answer is C.

Explanation:

Please give brainliest

Answer:

Explanation:

complex, in chemistry, a substance, either an ion or an electrically neutral molecule, formed by the union of simpler substances (as compounds or ions) and held together by forces that are chemical (i.e., dependent on specific properties of particular atomic structures) rather than physical.

1.Ridges, tectonic plate boundaries, and hydrothermal vents are physical features found on our planet. Where are these features found MOST OFTEN?

A. in the middle of huge lakes
B. around the edges of deserts
C. at the bottom of Earth's oceans
D. on top of mountains on continents

2.What are mid-ocean ridges?
A. They are areas where tectonic plates meet.
B. They are narrow valleys that run along the bottom of the oceans.
C. They are areas underwater where thick layers of sediment have accumulated.
D. They are areas of underwater mountain chains located near many active volcanoes.

3.Algae and other producers need lots of sunlight. Most ocean algae would be found in the water _____.
A. on the abyssal plain
B. in the oceanic trench
C. above the continental shelf
D. beside the continental slope

4.At which ocean feature would the greatest amount of water pressure be exerted?
A. Trench
B. Abyssal plain
C. Continental shelf
D. Continental slope
Please help thanks

Answers

Answer:

1. D

2. A

Explanation: Those are the only ones i know

Methane is a gas at room temperature and pressure. Explain why this is the case.

Answers

Answer:

hope it helps ❤

Explanation:

Methane only has london dispersion forces since it is nonpolar. London dispersion force is the weakest intermolecular force, so the forces between its molecules will be weak. This leads to a low boiling point that is lower than room temperature, which makes it a gas at room temperature.

Methane has london dispersion forces since it is nonpolar. London dispersion force is the weakest intermolecular force, so the forces between its molecules will be weak. This leads to a low boiling point that is lower than room temperature, which makes it a gas at room temperature.

You may think of changes in climate occurring as you go north or south. This climber stayed at the same latitude and went up. What explains the difference in temperature and climate between the top and bottom of Mt. Kilimanjaro? Please explain in 3-5 sentences thank you for 81 points

Answers

Answer: I'm not really sure but I think its dew to the different heights and tempura going up and down and the flow of wind.

Explanation:

Answer:

Mountains make it possible for snow to be found at the equator. Why does the temperature become colder the higher up a Mountain? Generally the climate on mountains get progressively colder with increased altitude (the higher up you go).

Explanation:

PLEASE ANSWER QUICKLY!!!!! Which of the following is NOT a function of your integumentary system?

A) Protecting against infection
B) Synthesizing vitamin D
C) Maintaining Fluid Balance
D) Stabilizing blood pressure

Answers

Answer: Must be a trick question.

Explanation: All of these are a function of the integumentary system.

The correct answer is B. Synthesizing virtual d.
Hope this helps <3

Louise has put together the setup shown in the figure to investigate how different masses respond to different forces. A mass is attached to two stretched springs. It rides on a track with very little friction. When Louise pushes the mass to either side and then lets it go, it oscillates back and forth, much like a pendulum. Explain why the mass oscillates.

Answers

Answer:due to the kinetic energy stored in spring

Explanation:

this happen because when spring ia stretched it store kinetic energy and it has the ability to move back and forward so this happen

Due to stored kinetic energy in the spring, the mass oscillated like a pendulum.

It is given that a mass is attached to two springs that are stretched. When Louise pushes the mass to either side and then lets it go, it oscillates back and forth resembling a pendulum.

This movement is observed because the mass if the block placed is shared between the two springs. This let the two springs to store the energy in them. This could also be given as potential energy.

When the mass is moved in the either side, the potential energy in the springs are turned into kinetic energy leading to movement of the mass. Since, the mass is help up with two springs, oscillatory movement or to and fro motion of the spring is observed.

To know more about pendulum, click below:

https://brainly.com/question/26449711

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The polyatomic nitrate ion (NO3−) is present in both the products and the reactants of the chemical equation shown below.

Ba(NO3)2 + 2LiOH → Ba(OH)2 + 2LiNO3

How many nitrate ions are in the products and the reactants of the chemical equation?

Answers

Answer:

Explanation: Two in reactants and two in products.

Suppose you throw a ball with a force of 2 N. The ball has a mass of 0.4 kg. At what rate will the ball accelerate?

Answers

Answer:

.8 m/s^2

Explanation:

A= Force x Mass

.4 x 2 = .8

The answer is

8.m/s^2

hope you get your answer correctly ❤️

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