Chemistry Middle School

help me pls rawr uwu SSUsSY

Answers

Answer 1

Help 2 what the answer for this?

Answer 2

It would be A divided

Related Questions

What makes Earth unique among the terrestrial planets?
Its orbit around the Sun is roughly circular.
It has a core that's made of iron at its center.
It is home to a variety of life-forms.
It is much hotter than all of the other terrestrial planets.

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It is home to a variety of life-forms.

:What is the primary purpose of the Skeletal System?

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Answer:

The skeletal system’s main function is to provide support for the body. For example, the spinal column provides support for the head and torso.

Explanation: becuase i am smart lol trust me

The skeletal system works as a support structure for your body. It gives the body its shape, allows movement, makes blood cells, provides protection for organs and stores minerals.

How can you tell if an object is accelerating?

Answers

Answer:

If an object is changing its velocity -whether by a constant amount or a varying amount

Explanation:

then it is an accelerating object. And an object with a constant velocity is not accelerating.

Answer:

the object can be accerleratting because the object supports it then later goes up for example a ball. if it supports that means its positive. if it has the weight like i mean by initially at rest. this means its negative. Hope this helps!

Explanation:

What type of person studies and collects data on the weather?

Answers

The answer would be a Meteorologist

Meteorologist is a person who studies and collects data

Pls could help me complete the "standart form" part :(

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Answer:

I don’t know bro

Explanation: WHY DID U REMOVE THIS

Place the parts of the human circulatory system in order from highest to lowest degree of internal organization.

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The answer is Cell tissue organ and system. Hope this helps!!

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.

please solve this for me

Answers

The standard reduction potential for the half-reaction of Be^2+ + 2e^- -> Be is given as E^0 = 3.83 V.

For the half-cell Hg^2+ | Hg, the standard reduction potential is not provided in the given information. To calculate the electric potential for the voltaic cell, we need the reduction potential for the Hg^2+ | Hg half-cell.

A voltaic cell, also known as a galvanic cell or an electrochemical cell, is an electrochemical device that generates electrical energy through a spontaneous chemical reaction. It consists of two half-cells connected by an external circuit and a salt bridge or porous barrier that allows the flow of ions between the two half-cells.

Each half-cell consists of an electrode immersed in an electrolyte solution. The electrode is typically made of a metal or a conductive material, and the electrolyte is a solution containing ions that can participate in the redox (reduction-oxidation) reaction.

Learn more about electrochemical cell on:

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Answer:

The standard reduction potential for the half-reaction of Be^2+ + 2e^- -> Be is given as E^0 = 3.83 V.For the half-cell Hg^2+ | Hg, the standard reduction potential is not provided in the given information. To calculate the electric potential for the voltaic cell, we need the reduction potential for the Hg^2+ | Hg half-cell.

A limit that defines the edges of a system and the divisions within a system *
A. constraint
B. criteria
C. prototype
D. prototype
Which one is right?
HELP PLS HELP ME

Answers

Answer:

A: Constraint

Explanation:

A: Constraint means a limitation or restriction.

B: Criteria means a principle or standard by which something may be judged or decided.

C: Prototype means a first, typical or preliminary model of something, especially a machine, from which other forms are developed or copied.

Constraint is the answer

Look at the photo on page 41 of your textbook. Which type of energy transfer is occurring at each lettered area? help pls?

Answers

Answer:

A conduction

B heat

C convection

A conduction b heat and c convection

By which mechanism does older oceanic rock move at a ridge?

A) New molten material rises and moves the rock

B) The ridge subducts and moves the rock

C) Continents drift and move the rock.

D) Magnetic forces move the rock.

Answers

Answer:

A) New molten material rises and moves the rock

Explanation:

Answer-

A.) new molten material rises and lives the rock.

Hope this helped and have a nice day!!

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.

Please help with questions 11-13! I’ll give brainliest

Answers

Answer:
11- 3
12- 4
13- 2

Answer:
11- 3
12- 4
13- 2 hope this helps

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

name and the number of atoms of calium oxide in one molecule of the compound for

pls help I am dead if I dont do it for 2 min

Answers

Answer:

1 calcium, 2 oxygen and 2 hydrogen makes for a total of 5 atoms in 1 molecule.

Explanation:

Don’t know really sorry

(02.05 HC)
A scientist observed a certain type of a particular bacteria growing in a substance that had a 1,000 times higher amount of the antibiotic that targets this bacteria. Using complete
sentences, justify the observation based on your knowledge of natural selection

Answers

Answer:

Para otros usos de este término, véase Resistencia.

La resistencia antibiótica es la capacidad de un microorganismo para resistir los efectos de un antibiótico. La resistencia se produce naturalmente por selección natural a través de mutaciones producidas por azar. El antibiótico, al entrar en contacto con una población bacteriana, permite solo la proliferación de aquellas bacterias que presentan aquella mutación natural que anula la acción del antibiótico. Una vez que se genera la información genética, las bacterias pueden transmitir los nuevos genes a través de transferencia horizontal (entre individuos) por intercambio de plásmidos; o igualmente producto de una conversión lisogénica. Si una bacteria porta varios genes de resistencia, se le denomina multirresistente o, informalmente, superbacteria.

PLZ HELP I WILL GIVE BRAINLY AND POINTS
Put the steps of the scientific method into the correct order.

Devise an experiment to prove or disprove.
State conclusions.
Conduct a literature search.
Define the problem.
Propose a hypothesis.

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Answer:

1. Define the problem

2. Conduct a literature search

3. Propose a hypothesis

4. Devise an experiment to prove or disprove

5. State conclusions

Explanation: In order to begin an experiment, you must first define a problem or question that you will be answering. Then you must research the problem in order to form a hypothesis, or an educated guess. Then you should devise and execute an experiment to answer your question. The conclusions that you draw will either prove or disprove your hypothesis. Hope this helps!

1. Define problem
2. Hypothesis
3. Search
4. Experiment
5. Conclusion

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.

NEED HELPPP PLSSSSSSSSSS

Answers

I would pick the first option in the third option

PLEASE HELP DUE TONIGHT

Compare and contrast ions and isotopes using Carbon.

a. How are isotopes and ions of Carbon similar?

b. How are isotopes and ions of Carbon different?

For each, think about how many protons, electrons, and neutrons are in each as well masses and charges.

Site your source(s) if you use anything outside of our online text.

Answers

Answer:

⬇️

Explanation:

Subatomic particles that are carbon atoms, isotopes and ions have in common are protons. A regular carbon isotope like carbon 13 and carbon ion all have the same number of protons in the atomic nuclei.

Isotope's are versions of a particular element that have a different number of neutrons, while ions are atoms (can be molecules too) that have lost or gained electrons that have an electrical charge. These two also have a different amount of neutrons.

Isotopes have neutrons

Ions involve electrons

Hope that helps! <3

Answer:Differences between atoms ions and isotopes

Isotopes are versions of a particular element that have different numbers of neutrons. Ions are atoms (or molecules) that have lost or gained electrons and have an electrical charge. Isotopes involve neutrons. Ions involve electrons.

Explanation:Differences between atoms ions and isotopes

Which is one characteristic that temperate marine and temperate continental climates have in common?

mild winters
hot summers
many tall trees
moderate amounts of precipitation

Answers

Answer: D : moderate amounts of precipitation

Explanation:

The one characteristic that temperate marine and temperate continental climates have in common is moderate amounts of precipitation. Thus, the correct option for this question is D.

What is Climate?

Climate may be characterized as the long-term pattern of weather in a particular area. It is different from the weather in a way that can change from hour to hour, day-to-day, month-to-month, or even year-to-year.

According to the context of this question, A maritime climate is influenced by a nearby ocean. A continental climate is influenced by nearby land. The temperature of offshore currents affects nearby land areas.

A maritime climate is less extreme than a continental climate because the ocean moderates temperatures. Due to this, both temperate marine and temperate continental climates have moderate amounts of precipitation.

Therefore, the correct option for this question is D.

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write a short story using the characteristics of the subatomic particles and their locations in the atom. For example, you need a positive character, a neutral character, and a negative character. You need two different locations. One to be the center location of the story and the other to be outside the center. At a minimum you should have at least 1 paragraph with about 5 sentences. Make sure that you use complete sentences.
Make sure it is school appropriate!!

Answers

Explanation: There are three subatomic particles called electrons, protons, and neutrons. Electrons have a negative charge, protons have a positive charge, neutrons have no charge. The particles are held withen the atom by 4 fundamental forces-gravity, electromagnetic force, strong force, and weak force

A whole story ??? Like a full on story or

What are some limitations of this experiment? How could it be improved?

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Answer: Limitation: They may be more expensive and time consuming than lab experiments. Limitation: There is no control over extraneous variables that might bias the results. This makes it difficult for another researcher to replicate the study in exactly the same way.

Explanation:

Hope this helps!

Answer:Limitation: They may be more expensive and time consuming than lab experiments. Limitation: There is no control over extraneous variables that might bias the results. This makes it difficult for another researcher to replicate the study in exactly the same way.

Explanation: i hope that helps

Which ion below is present in greatest concentration in a basic (alkaline) solution

Answers

Answer:

hydroxide ion / OH-

Explanation:

Basic solutions have a greater concentration of hydroxide ions than hydrogen (H+) ions

Hydroxide ion I think if wrong I’m sorry

Using the word bank below label the wave.

A Trough. B Crest. C Amplitude. D Wavelength.

3). 4). 5). 6).

Answers

Answer: crest I don’t really know how to explain it but yea it’s crest

Crest B it’s the 2 humps which is called the crest

Which choice describes an organism found in the understory of a rainforest? Responses

A. Palms and other small trees

B. Very tall trees

C. Bacteria

D. Thick, woody vines

Answers

Answer: Palms and other small trees

Explanation:

Answer:

A. Palms and other small trees

Explanation:

Understory Layer

Located several meters below the canopy, the understory is an even darker, stiller, and more humid environment. Plants here, such as palms and philodendrons, are much shorter and have larger leaves than plants that dominate the canopy. Understory plants’ large leaves catch the minimal sunlight reaching beyond the dense canopy.

https://brainly.com/question/21423132

Does knowing the global pattern help meteorologists predict tomorrow’s wind direction for every location on Earth? Explain your reasoning

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Wind is an important element when it comes to current weather and predicting future forecasts. Wind transports moisture and temperature from one area to another, therefore weather conditions change with the shift of wind direction.

Please help me por favor :'(

Answers

More volume, takes longer to heat all the molecules.

Calculate the volume (in cm3
) of 54 g
of water at 1 ∘C
.
Express the volume in cubic centimeters to two significant figures.

Answers

157,464 I think this is the answer

since the density of water is 1, then 1g = 1cm^3. So the volume of 54g of water is 54cm^3 with 2 significant figures

Imagine that you are a leaf on a plant, and you realize that you are running low on supplies to do your job. You decide to text the roots to set up a delivery. Write a text message conversation between the leaf and the roots that discusses and arranges this delivery.

Answers

Answer:

Leaf: Hey Roots, this is Leaf. I'm running low on supplies here. Can you send some over?

Roots: Hey Leaf, of course. What kind of supplies do you need?

Leaf: I need more water and nutrients. Can you send some my way?

Roots: Sure thing, we'll get on it right away. How much do you need?

Leaf: Just enough to keep me going for a few more days. Can you also send some sunlight my way?

Roots: Sorry, we can't help with that one. But we'll make sure to send enough water and nutrients to help you out.

Leaf: Thanks, Roots. You're the best. Let me know when the delivery is on its way.

Roots: Will do, Leaf. Hang in there. Delivery should be there soon.

Leaf: Hey Roots, it's Leaf here. I'm noticing that I'm running a bit low on supplies to perform photosynthesis. Can we set up a delivery of water and nutrients?

Roots: Hi Leaf! Of course, we're here to help. Sorry to hear you're running low. We'll get right on it. How much water and which specific nutrients do you need?

Hope it helps! :)

Leaf: Thanks, Roots! I'll need a good soak of water, and I could use some extra nitrogen and potassium for optimal photosynthesis. Can you also throw in some magnesium?

Roots: Noted, Leaf. Water, nitrogen, potassium, and magnesium coming right up! We'll absorb them from the soil and deliver them through the xylem. Just hang in there!

Leaf: Awesome, Roots! Your support is much appreciated. Let's make sure this delivery boosts my chlorophyll production so I can keep producing energy for the whole plant.

Roots: Absolutely, Leaf! We're here to keep the whole plant thriving. Your health is our priority. We'll work together to ensure you have everything you need for top-notch photosynthesis.

Leaf: Thanks for being the best roots a leaf could ask for! Can't wait to feel rejuvenated and get back to making food for the plant.

Roots: You're welcome, Leaf! We're all part of the same team. Stay patient, the delivery will be on its way soon. We'll keep you updated.

Leaf: Will do, Roots! Looking forward to the delivery. Keep up the great work down there!

Roots: Thanks, Leaf! We'll keep the nutrients flowing. Take care up there and keep shining!

Leaf: You too, Roots! Catch you later!

Roots: Until next time, Leaf! Stay green and healthy!

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