HELP! PLZZ! NEED THIS DONE ASAP!

HELP! PLZZ! NEED THIS DONE ASAP!

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Answer 1

Answer:

B)

Explanation:

Answer 2
the answer to the ur question is B

Related Questions

Please help!! will give brainliest!! The temperature if the water to the nearest degree:__°C​

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Answer:

102 degrees, the intervals go by 2

What is the Albedo of Earth?

Group of answer choices

The energy that is absorbed into Earth.

The energy that is reflected back into space from Earth.

Just a cool word.

Minion talk for energy.
SCIENCE
6TH GRADE
BRAINLIEST!!

Answers

Answer: Earth's average albedo is about 0.3. In other words, about 30 percent of incoming solar radiation is reflected back into space and 70 percent is absorbed. A sensor aboard NASA's Terra satellite is now collecting detailed measurements of how much sunlight the earth's surface reflects back up into the atmosphere.

Explanation: ik im annoying thanks

Perform each of the following operations as indicated. Express your answers to the correct number of significant figures and unit.

1. 5 x 10–7 kg + 3 x 10–7 kg


2. 4 x 105 kg + 6 x 105 kg




3. 1.66 x 1019 kg + 2.30 x 1019 kg




4. 7.2 x 10–12 kg - 2.6 10–12 kg




5. 3.8 x 10–12 m2 - 1.90 x 10–11 m2


6. 2.26 x 10–18 m2 - 1.8 x 10–18 m2

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1. 70 with 1 sig fig
2. 1000 with 1 sig fig
3. 4040 with 3 sig fig
4. I’m not certain if that second part is 2.6X10-12 but if so, the answer is 20 with 1 sig fig

When all the values in a data set are written in order from least to greatest, the value that is in the middle, wth an equal number of values below it and equal number of values above it, is called the Omedian O mean O mode Orange​

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Option A, median is the correct answer

5. How can you use the periodic table to help predict the types of bonds elements will form?​

Answers

Answer:

You can look how far apart the two atoms forming the bonds are in the periodic table. If one atom is on the far left Group 1 or 2 and the other is on the far right Group 5, 6, or 7, then the atoms will have large differences in with form an ionic bond.

What is the density of an object of an object having a mass of 6.0 grams and a volume of 35 cm3?

Answers

Answer:

0.17 ( 2 s.f.)

Explanation:

d=m/v

=6/35

=0.1714285

=0.17

Answer:

Hey bro

Explanation:

I don't like boys and the answer most definitely is 69

Which substance is a strong electrolyte?
O NH3
O Ba(OH)2
O C12H22011
O CH3COOH

Answers

Answer:

Ba(OH)2 is a strong base, so it conducts electricity well

Explanation:

The dissociation of a strong electrolyte is apparent by its reaction arrow, which only points toward products. In contrast, the reaction arrow of weak electrolytes points in both directions. The general form of the strong electrolyte equation is: Strong acids, strong bases, and ionic salts that are not weak acids or bases are strong electrolytes.

X     NH3 is a weak base

X     C12H22011 is neutral (not an acid or a base), therefore it a nonelectrolyte

X     CH3COOH is a weak acid and it also dissociates partially.

The substance which is a strong electrolyte is Ba(OH)₂.

Hence Option (B) is correct answer.

What is Strong electrolyte ?

Strong electrolyte can be defined as the substance that completely dissociates in to ions.

Strong electrolyte (aq) → cation⁺ (aq) + anion⁻ (aq)

Now lets check all options one by one

Option (A): NH₃

NH₃ is a weak base. NH₃ does not completely ionize so it is a weak electrolyte.

Hence it is incorrect option.

Option (B): Ba(OH)₂

Ba(OH)₂ is a strong electrolyte because it dissociates completely in water.

Ba(OH)₂ (aq) → Ba⁺² (aq) + 2OH⁻ (aq)

Hence, it is correct option.

Option (C): C₁₂H₂₂O₁₁

C₁₂H₂₂O₁₁ is a non electrolyte that means it does not dissociate into ions.

Hence, it is incorrect option.

Option (D): CH₃COOH

CH₃COOH is a weak electrolyte due to the presence of lowest number of ions it does not dissociate. It's ionization is very less.

Hence, it is incorrect option.

Thus, from the above conclusion we can say that The substance which is a strong electrolyte is Ba(OH)₂.

Hence Option (B) is correct answer.

Learn more about the Strong electrolyte here: https://brainly.com/question/2285692

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Please help it’s due today, I will give brainliest

Answers

the two middle ones is the answer

A B C The circles shown above represent three different elements. The six images below are mixtures, how many of the images represent homogeneous mixtures.

​edit; found the answer, since no one answered is: 2. for anyone wondering.

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Answer: 2

Explanation:

Find the average atomic mass of Boron.
Boron comes in two isotopes, Boron-10 and Boron-11. Boron-10 has an exact mass of 10.01294 and has a percent abundance of 19.83%. Boron-11 has an exact mass of 11.00931 and a percent abundance of 80.17%.

Answers

Answer:

12

Explanation:

Answer:

11.01

Explanation:

just did the assignment :D

Explain the similarities and differences between combination, decomposition,
and replacement reactions.
HELP PLEASE POINTS++++++++++++++ IMA MAKE BRAINLIEST

Answers

A composition reaction produces a single substance from multiple reactants. A decomposition reaction produces multiple products from a single reactant. Combustion reactions are the combination of some compound with oxygen to make oxides of the other elements as products (although nitrogen atoms react to make N2).

How many centimeters are in 1 inch?

Answers

There are 2.54 cm in an inch.

The metric system is used to measure the objects based on various parameters. A centimeter is a unit of length. One inch is equivalent to 2.54 cms.

What is the metric system?

The Metric system is the system used to estimate the weight (mass), length, and capacity of the object and was first introduced in France by  Gabriel Mouton, a mathematician, and an astronomer. The metric system measures length, mass, volume, time, etc.

The metric system of length use the SI unit of meter, other units used to measure the length are centimeter, kilometer, millimeter, inches, yard, mile, feet, etc.

Given,

Length = 1 inch

It is known that an inch is equivalent to 2.54 centimeters, hence, 1 cm = 2.54 cms.

Therefore, there are 2.54 centimeters in one inch of the object.

Learn more about metric conversion here:

https://brainly.com/question/13266298

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What happens to an atom if it loses an electron?

Answers

Answer:

When an atom loses electron(s) it will lose some of its negative charge and so becomes positively charged. A positive ion is formed where an atom has more protons than electrons. In the opposite case when an atom gains electron(s) it becomes negatively charged (more electrons than protons).

Explanation:

How many protons, neutrons, and electrons does the atom above have?
-12 protons, 7 neutrons, 1 electron
-7 protons, 12 neutrons, 1 electron
-12 protons, 5 neutrons, 7 electrons
-7 protons, 5 neutrons, 8 electrons
-7 protons, 5 neutrons, 1 electron
-7 protons, 12 neutrons, 8 electrons
-5 protons, 7 neutrons, 8 electrons

Answers

Answer:

Nitrogen has 7 protons, 7 neutrons, and 7 electrons.

So, I'm not entirely sure about the choices you provided :)

How do the scientists Mendeleev and Moseley differ on their arrangement for the periodic table? A) Their periodic table was arranged the same. B) Moseley arranged the elements based on atomic masses while Mendeleev arranged the elements based on atomic number. C) Moseley arranged the elements based on atomic numbers while Mendeleev arranged the elements based on atomic masses. D) Moseley arranged the elements based on the number of protons while Mendeleev arranged the elements based on x-ray frequency.

Answers

Answer:

C is correct

Explanation:

the person above me is also correct hope this helps

The key difference between Dmitri Mendeleev and Henry Moseley's periodic table arrangements lies in the fundamental basis of their organization: C) Moseley arranged the elements based on atomic numbers while Mendeleev arranged the elements based on atomic masses.

Dmitri Mendeleev (1869): Mendeleev's periodic table was the first successful attempt at organizing the elements. He arranged the elements in order of increasing atomic masses and grouped them based on their chemical properties. Mendeleev's periodic table also left gaps for elements that were yet to be discovered, predicting their properties based on the trends of the known elements.

Henry Moseley (1913): Moseley's contribution to the periodic table was the realization that the atomic number (number of protons in the nucleus of an atom) was a more fundamental property than atomic mass. Moseley proposed that the periodic table should be arranged based on increasing atomic numbers rather than atomic masses. This arrangement resulted in a more accurate and systematic organization of the elements.

Learn more about atomic masses from the link given below.

https://brainly.com/question/29117302

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write the electronic configuration of oxygen on the basis of sub shell.​

Answers

Answer:

[He] 2s² 2p⁴

Explanation:

If you're looking for the answer in subshell form, here it is:

[tex]1sx^{2} 2sx^{2} px^{4} (2.6)[/tex]

Quote:

"Where I walk, I walk alone. Where I fight, I fight alone."

- Akuma

pls help asap !! unsure how to do this

Answers

Frequency by definition is the speed of light divided by wavelength. We use the speed of light because radiation is part of the electromagnetic spectrum.

(3.0 x 10^8)/(6.84 x 10^-7)
3/6.84 = 0.438
10^8/10^-7 = 10^1

= 4.38 s^-1

Which of the following is the correct Lewis Dot Structure for MgBr2?
PHOTO ABOVE

Answers

Answer:

Option A

Explanation:

To know the correct answer to the question, let us write an equation illustrating the formation of MgBr₂.

This is illustrated below:

1. Magnesium (Mg) is divalent element hence it will lose 2 electrons to form magnesium ion (Mg²⁺) as shown below

Mg —> Mg²⁺ + 2e¯

2. Bromine (Br) is a univalent element. Two bromine atom will receive the two electrons (i.e each atom receives 1 electron) to form the bromide ion (Br¯) as shown below:

2Br + 2e¯ —> 2Br¯

Combine both equation

Mg + 2Br + 2e¯—> Mg²⁺ + 2e¯ + 2Br¯

Cancel out 2e¯

Mg + 2Br —> Mg²⁺ + 2Br¯

Thus we have

Br—Mg—Br

From the illustration made above, we can see that two bromine atom is receiving 1 electron each from the magnesium atom

I NEED HELP FAST

complex conversions between units may require using __________ conversion factor

Answers

Answer:

More than one

Explanation:

Answer:

More than one

Explanation:

Quizlet says so

PLEZ HELP QUICKLY!!!! ILL MARK BRAINLIEST

Answers

Option B, P and Cl

They form covalent bond

Whose personal story did you read (if you read several, pick your favorite)? What was the most interesting or eye-opening part of that person's story?

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I feel like it would probably be all the things that my mom said about things and I didn’t believe until I saw

4. The half-life for a 100-gram sample of radioactive element X is 5 days. How much of element X remains after 10 days have passed?
A. 25 g
B. 50 g
C. 75 g
D. 100 g

Answers

imma go with b : the evidence is in the text

This is not a multiple choice question

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C because watching children isn’t going to do anything and videos won’t give him a direct answer.

Identify the atom below.

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The answer is Beㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤㅤ

The answer is He!

Hope this helps ya out

A ____ is a region of strong magnetic activity on the photosphere the Sun.

(A) sunspot
(B) flare
(C) Coronal mass ejection
(D) Solar wind​

Answers

Answer:d solar wind yea

Why would heating up the human body be a bad choice for causing a chemical reaction?

Answers

Answer:

Explained below

Explanation:

The human body has a normal core temperature of around 37°C to 38°C.

Now, if it is heated up to say 39° to 40°C, fatigue will start to set in and the brain begins to tell the muscles to slow down.

If it's now heated to higher temperatures above above 41°C, the body will begin to experience heat exhaustion and therefore will start to shut down.

Due to this process, the body can't even sweat at that stage because blood flow to the skin will stops thereby making the body feel cold and clammy. Thus, chemical processes/reaction in the body will begin to be affected and the cells inside the body will start to deteriorate and thus there is now a huge risk of having multiple organ failure.

please help me im so lost! ​

Answers

Answer:

An atom consists of a positively charged nucleus, surrounded by one or more negatively charged particles called electrons. The positive charges equal the negative charges, so the atom has no overall charge; it is electrically neutral. ... The nucleus of an atom contains protons and neutrons.

Explanation:

i'm smart you are too in your own way.

how many atoms does a gold bar and gold nuggets contain

Answers

The answer is 79 I believe

Answer:

The answer is 1

Explanation:

Gold is gold, the size doesn't change what it is.

NEED ANSWER FAST✴️✴️✴️✴️
What do phytoplankton do for the carbon cycle? Choose all that apply.


A. They take in oxygen for photosynthesis.

B. They take in carbon dioxide for photosynthesis.

C. When they die, the carbon left in them can be sequestered (stored) in the ocean bottom.

D. They are food for many animals, including some whales.

Answers

B. Phytoplankton are responsible for most of the transfer of carbon dioxide from the atmosphere to the ocean. Carbon dioxide is consumed during photosynthesis, and the carbon is incorporated in the phytoplankton, just as carbon is stored in the wood and leaves of a tree.

Boron
B
10.811
Number of neutrons

Answers

Answer:

6

Explanation:

To determine the number of neutrons we round 10.8 to 11 and subtract the atomic number (5) and get 6; therefore, boron has 6 neutrons.

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