CHEMISTRY MIDDLE SCHOOL

Help me plz! Name and classify Kr and Xe.A. Krypton and xenon are nonmetals and noble gases.
B.Kromine and xerolon are ductile, transition metals.
C.Krypton and xenneth are main group, alkaline metals.
D.Kryptonium and xenolith are rare, conductive metalloids.

Answers

Answer 1
Answer:

According to the electronic configuration, Krypton and xenon are nonmetals and noble gases.

What is electronic configuration?

Electronic configuration is defined as the distribution of electrons which are present in an atom or molecule in atomic or molecular orbitals.It describes how each electron moves independently in an orbital.

Knowledge of electronic configuration is necessary for understanding the structure of periodic table.It helps in understanding the chemical properties of elements.

Elements undergo chemical reactions in order to achieve stability. Main group elements obey the octet rule in their electronic configuration while the transition elements follow the 18 electron rule. Noble elements have valence shell complete in ground state and hence are said to be stable.

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Answer 2
Answer: the answer is A Krypton and xenon have complete electron clouds.

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Which volume is the smallest?A. One milliliter
B. One deciliter
C. One liter
D. One microliter

Answers

Answer:

d) one microliter

Explanation: The advantage of the SI (International system of measurements) is that everything is in base 10, and the prefix indicates the power of 10.

For the volume, the base unit is the liter.

one microliter = 0.000001 liter (one millionth, 1 / 1000000, of a liter)

one deciliter = 0.1 liter (one tenth, 1/10,  of a liter)

one liter = 1 liter

one milliliter = 0.001 liter (one thousand, 1/1000, of a liter)

As you can see, a microliter is by far the smallest of these units.

Final answer:

The smallest volume unit among the given options (One milliliter, One deciliter, One liter, One microliter) is One microliter.

Explanation:

The volume of a substance is a measure of the space it occupies. In this case, we need to identify the smallest unit of volume from the given options. The unit, microliter (represented by µL), is the smallest volume unit among the options. Here's a quick breakdown:

  • 1 milliliter (mL) = 1000 microliters (µL)
  • 1 deciliter (dL) = 100 milliliters (mL) or 100000 microliters (uL)
  • 1 liter (L) = 10 deciliters (dL) or 1000 milliliters (mL) or 1000000 microliters (µL)

So, the correct answer to your question is D. One microliter.

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Give me a paragraph about the sun

Answers

The Sun is what's known as a star - a star is formed when large amounts of matter are pulled together by each other's gravity and the temperature reaches a point where nuclear reactions can start happening. In our sun, what's happening is that hydrogen is being fused into other atoms such as helium. Doing this lets off a large amount of heat and light.

Is that decent?
The sun shines bright outside but when rain comes it hides and it coke back when it's shining sometimes rainbow comes out and sometimes it can hurt pepole eyes but it always don't it can be hot when it shines your cars might get hot and if you touch it u will get hot

suppose you mix food coloring in water to make it blue. Have you made a solution or suspension. Explain........PLZ HELP

Answers

It would be a solution because it dissolved in the water obviously turning it blue .water dissolves so many solutions that it is often called the "universal solvent".

Why is it important that the polymer membrane in a PEM fuel cell allows only protons to move through it? It forces the electrons to move through an external circuit, where they can do work.
It prevents the protons from reacting with the compounds in the rest of the fuel cell.
It allows the protons to build up potential energy and release more energy when they react with oxygen.
It keeps the electrons from corroding the interior of the PEM fuel cell.

Answers

Answer:

It forces the electrons to move through an external circuit, where they can do work.

Explanation:

Just got it correct

Answer:

A. It forces the electrons to move through an external circuit, where they can do work.

E2020

Explanation:

Which processes result in the release of carbon? Select three options.Animals break down food molecules to obtain energy.
The remains of producers are broken down by decomposers.
The remains of consumers are broken down by soil decomposers.
Producers take in carbon dioxide.
Producers make sugars and starches.

Answers

The three processes that releasecarbon are as follows:

  • Animals break down food molecules to obtain energy.
  • The remains of producers are broken down by decomposers.
  • The remains of consumers are broken down by soil decomposers.

  • Carbon moves back and forth from living organisms to the atmosphere in a process summarized by CARBON CYCLE. In the carbon cycle, carbon is either absorbed or released in series of processes.

WAYS THROUGH WHICH CARBON IS RELEASED:

  • Animals break down food molecules to obtain energy in a process called CELLULAR RESPIRATION. Carbon is released into the atmosphere in form of carbon dioxide (CO2).

The remains of producers (plants) are broken down by decomposers (fungi, bacteria etc). Carbon is returned back to the soil this way.

The remains of consumers, when they die, are broken down by soil decomposers (fungi, bacteria).

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Answer:

Animals break down food molecules to obtain energy.

The remains of producers are broken down by decomposers.

The remains of consumers are broken down by soil decomposers.

Explanation:

JUST TOOK THE TEST

What is a convection cell 12 points

Answers

a self-contained convective zone in a fluid in which upward motion of warmer fluid in the center is balanced by downward motion of cooler fluid at the periphery.
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