what is the second most abundant gas in the atmosphere

Answers

Answer 1
Oxygen is the second. The first is nitrogen which makes up 78% of air. Oxygen makes up 21% of air.

Related Questions

Fusion:
Requires high temperatures
Occurs in the sun and other stars
Creates less radioactive waste than fission
All of the above

Answers

all of the above.....

francium phosphate
+ cesium acetate

Answers

Answer:

[tex]Fe_3PO_4+3Cs(CH_3COO)\rightarrow Cs_3PO_4+3Fr(CH_3COO)[/tex]

Explanation:

Hello there!

In this case, according to the given information, it is possible for us to illustrate the complete double displacement reaction between francium phosphate and cesium acetate as given on the question:

[tex]Fe_3PO_4+Cs(CH_3COO)\rightarrow Cs_3PO_4+Fr(CH_3COO)[/tex]

Which must the balanced due to the nonequal francium and cesium atoms:

[tex]Fe_3PO_4+3Cs(CH_3COO)\rightarrow Cs_3PO_4+3Fr(CH_3COO)[/tex]

Best regards!

PLEASE HELP NO LINKS OR FILES

You have to use the words that are in red to describe the wave.

Answers

Answer:

Rise surface fall surface rise

Explanation:

Hope this helps!

We can predict that summer will follow spring. T or F

Answers

Answer:

T

Explanation:

Plz someone help, really struggling
How many liters of carbon monoxide are needed to react with 32.65 g oxygen gas to produce carbon dioxide?

Answers

Answer:

2.040 mol CO

Explanation:

First, write out your reaction:

CO + O2 --> CO2

Balance the reaction:

2CO + O2 --> 2CO2

Now divide the 32.65 g O2 by the molar mass of O2 (32.00 g/mol) to get moles of O2. Then multiply by the mole ratio of 2 mol CO for every 1 mol O2 to get moles of CO needed to fully react.

32.65 g O2 / 32.00 g/mol = 1.020 mol O2

1.020 mol O2 • 2 mol CO / 1 mol O2 = 2.040 mol CO

Please help me find the answer, thank you.

Answers

Answer:

Chlorine hope i helped.

Explanation:

Help a person out please

Answers

Explanation:

here I haven't drawn the diagram but I have marked them where they will be .

So if it helps don't forget to like and Mark me

a sample of gas X occupies 10 m^3 at a pressure of 120 kPa.if the volume of the sample is compressed to 3m^3 ,what is the new pressure of the gas?​

Answers

Answer:

400 kPa

Explanation:

The new pressure can be found by using the formula for Boyle's law which is

[tex]P_1V_1 = P_2V_2[/tex]

Since we're finding the new pressure

[tex]P_2 = \frac{P_1V_1}{V_2} \\[/tex]

120 kPa = 120,000 Pa

We have

[tex]P_2 = \frac{120000 \times 10}{3} = \frac{1200000}{3} \\ = 400000[/tex]

We have the final answer as

400,000 Pa = 400 kPa

Hope this helps you

Is my sister bad or good.

Answers

Answer:

decent

Explanation:

Neutral atoms of neon with atomic
number 10 have the same number of
electrons as
a o²+
b ca²+
c​

Answers

Answer:

d. Mg²⁺

Explanation:

c. K⁺

d. Mg²⁺

Based on the Bohr's atomic model, the atom has electrons (Mass 0; Charge -1), protons (Mass 1; Charge +1) and neutrons (Mass 1; Charge 0).

The atomic number is equal to the number of protons. That means there are 10 protons. As the Neon is netural, the amount of electrons must be 10.

A neutral atom of Mg has 12 electrons, that means the Mg²⁺ has 10 electrons the same than Ne.

Right option is:

d. Mg²⁺

How many grams of carbon are found in
3.50 atoms of carbon?

Answers

Answer:

140

Explanation:

there is 140 grams in 3.5 atoms of carbon

140 is the answer to this

Please help me out this is a test.


The imaje shows a plate baundary. Arrows have been added to indicate the movement if the plates.

Answers

The correct answer should be H. I hope this helps!

What volume of solution is required to produce a 7.8M solution containing 23.6g of LiBr?

Answers

Answer:

34.9 mL

Explanation:

First we convert 23.6 g of LiBr into moles, using its molar mass (86.845 g/mol):

23.6 g ÷ 86.845 g/mol = 0.272 mol LiBr

Now we can calculate the required volume, using the definition of molarity:

Molarity = moles / litersliters = moles / Molarity0.272 mol / 7.8 M = 0.0349 L

We can convert L into mL:

0.0348 L * 1000 = 34.9 mL

Within the visible spectrum, red light has

Answers

Answer:

Within the visible spectrum, red light has the longest wavelength.

Hope that helps! :)

Explanation:

The longest wavelength, at around 700 nanometers.

PLEASE HELP QUICKLY!! How many moles of NH4OH are in 0.125L of a 1.4 M solution of NH4OH?

Answers

Answer:

0.175mol

Explanation:

Molarity of a solution can be calculated thus:

Molarity (M) = number of moles (n) / volume (V)

According to the information provided in this question, volume of NH4OH = 0.125L, molarity = 1.4M

Using; Molarity = n/V

1.4 = n/0.125

n = 0.175mol

What’s the easiest way to add energy to matter

Answers

Answer:

The easiest way is to heat matter which raises its internal energy andso the mass as well. Another possibility is to accelerate matter as in case of protons or heavy ions in the LHC, Protons ,for example , are accelerated to the energies of 6500 GeV which means increase of the rest mass by a factor of almost 7000

Which of the following is not a force
A. Weight
B. Friction
C. Acceleration
D. Air resistance

Answers

Answer:

Acceleration

Explanation:

Acceleration doesn't change one moment to the next, and therefore, doesn't count as a force.

The answer option which is not a force is: C. Acceleration.

What is a force?

A force can be defined as a push or pull of an object or physical body, which typically results in a change of motion (acceleration), especially due to the interaction of the object with another.

The examples of a force.

In Science, the three (3) most common examples of a force include the following:

WeightFrictionAir resistance

In conclusion, acceleration is not an example of a force but a change in the rate of velocity of an object with respect to time.

Read more on force here: brainly.com/question/1121817

convert 555 torr into kpa

Answers

Answer:

73.97 kPa

Explanation:

It's helpful to know the conversion factors and apply them.

First, convert from torr to atm:

555 torr ÷ 760 atm = 0.730 atm

Next, convert from atm to Pa:

0.730 atm × 101,325 Pa = 73967 Pa

Finally, convert to kPa (1000 Pa in 1 kPa):

73967 Pa ÷ 1000 kPa = 73.97 kPa

Using this illustration, what is the chemical formula? Picture and possible answers are below.

Answers

NH3. 1 nitrogen and 3 hydrogen

The answer is It is NH3.....

PLEASE HELO DOES ANYONE KNOW THE RIGHT ANSWER ??

Answers

Answer:

the last one because matter is the amount of space

What is the mass of 8.23 x 10^23 atoms of Ag

Answers

Answer:

[tex]\boxed {\boxed {\sf Approximately \ 147 \ g\ Ag}}[/tex]

Explanation:

Convert Atoms to Moles

The first step is to convert atoms to moles. 1 mole of every substance has the same number of particles: 6.022 ×10²³ or Avogadro's Number. The type of particle can be different, in this case it is atoms of silver. Let's create a ratio using this information.

[tex]\frac{6.022*10^{23} \ atoms \ Ag}{1 \ mol \ Ag}[/tex]

We are trying to find the mass of 8.23 ×10²³ silver atoms, so we multiply by that number.

[tex]8.23 *10^{23} \ atoms \ Ag *\frac{6.022*10^{23} \ atoms \ Ag}{1 \ mol \ Ag}[/tex]

Flip the ratio so the atoms of silver cancel. The ratio is equivalent, but places the other value with units "atoms Ag" in the denominator.

[tex]8.23 *10^{23} \ atoms \ Ag *\frac{1 \ mol \ Ag}{6.022*10^{23} \ atoms \ Ag}[/tex]

[tex]8.23 *10^{23} *\frac{1 \ mol \ Ag}{6.022*10^{23} }[/tex]

Condense into one fraction.

[tex]\frac{8.23 *10^{23} }{6.022*10^{23} } \ mol \ Ag[/tex]

[tex]1.366655596 \ mol \ Ag[/tex]

Convert Moles to Grams

The next step is to convert the moles to grams. This uses the molar mass, which is equivalent to the atomic mass on the Periodic Table, but the units are grams per mole.

Ag: 107.868 g/mol

Let's make another ratio using this information.

[tex]\frac {107.868 \ g \ Ag}{1 \ mol \ ag}[/tex]

Multiply by the number of moles we calculated.

[tex]1.366655596 \ mol \ Ag*\frac {107.868 \ g \ Ag}{1 \ mol \ ag}[/tex]

The moles of silver cancel out.

[tex]1.366655596 *\frac {107.868 \ g \ Ag}{1 }[/tex]

[tex]1.366655596 * {107.868 \ g \ Ag}[/tex]

[tex]147.4184058 \ g\ Ag[/tex]

Round

The original measurement of atoms has 3 significant figures, so our answer must have the same. For the number we calculated, that is the ones place.

147.4184058

The 4 in the tenths place tells us to leave the 7 in the ones place.

[tex]147 \ g\ Ag[/tex]

8.23 ×10²³ silver atoms are equal to approximately 147 grams.

the provided balanced equation applies to the reaction that takes place between lithium, hydroxide and sulfuric acid. 2LiOH + H2SO4 --> Li2SO4 + 2H2O.

If the reaction begins with 26.7 grams of lithium hydroxide (LiOH) and 164.048 grams of sulfuric acid (H2SO4), how many grams of lithium sulfate (Li2SO4) is produced? Assume 100% yield. Round your answer to the nearest tenth of a gram​

Answers

Answer:

About 60 grams.  

Explanation:

The on point answer is 61.28 grams.

What are the types of Asexual reproduction?

need this asap bro uyftghjkddfs

Answers

Answer:

The types of Asexual reproduction include:  fission, fragmentation, budding, vegetative reproduction, spore formation and agamogenesis.

Using an analogy of a water balloon, describe the function of the bladder.

Answers

Answer:

A bladder is like a balloon, because it holds urine, just like a balloon holds air. The urethra's function is to excrete urine from the human body.

Explanation:

A bladder and a balloon are similar, because it is the bladder which clasp urine, whereas a balloon clench air. The role of urethra is to eliminate urine from our human body.

What is bladder?

The hollow organ which is in triangle shape and found in the lower abdomen just like a balloon is defined as the bladder. The urinary bladder is also known as a temporary reservoir of urine. Urine is reserved in the urinary bladder till it is removed out through the urethra.

As a result of the contraction of the wall of the urinary bladder, urine is eliminated from the body from time to time. The urine contains waste and extra fluid left over the body which has to be eliminated.

The bladder resembles the water balloon in that it holds urine in the similar way as the water balloon clench water. The water balloon pops when the amount of water exceeds than it can hold.

Thus the function of bladder and water balloon are found to be same.

To know more about bladder, visit;

https://brainly.com/question/28496978

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pls show ur work will mark the brainliest

Answers

Answer:

M = 0.47

Explanation:

1 - Turn grams to moles using molar mass:

16g NaOH × 1 mol NaOH / 40g NaOH = 0.4 mol NaOH

2- Turn milliliters to liters:

855mL × 1 L / 1000mL = 0.86 L

3- Use formula which is M = moles of solute / liters of solvent:

M = 0.4 mol NaOH / 0.86 L = 0.47

How are molecules, compounds, and substances related?

Answers

Answer:

Molecule is the general term used to describe any atoms that are connected by chemical bonds. Every combination of atoms is a molecule. A compound is a molecule made of atoms from different elements. All compounds are molecules, but not all molecules are compounds.

Explanation:

i hope you mark me the brainliest

(view the image) explain your answer please

Answers

There is only one element with atomic mass 3 and it’s lithium and it only has 3 protons and 4 neutrons

What is the charge of a Li ion?
A. +1
B. +2
C. -1
D.-2

Answers

Answer:

A

Explanation:

because the charge of Li ion is +1 well I don't know the explanation yet but I'm sure about the answer

which of the following subject area contains questions that can be answered by science?

Answers

Answer:

ASTRONOMY

Explanation:

im taking that test right now

i hope this helps :0

Answer:

forensics

Explanation:

took the test yay

Zach invited his friend Sydney to a pool party over the weekend. Sydney informed Zach that the climate was supposed to be rainy over the weekend and suggested that he change his plans. Zach explained to Sydney that she had misused the word “climate” and she should have used the word “weather” instead. Which of the following statements accurately clarifies the confusion between Zach and Sydney?


A). Zach is correct; the weather for this area is typically tropical and wet.


B). Sydney is correct; there has been an abundance of rainfall within the last month, changing the climate of this particular area.


C). Zach is correct; the climate of an environment is determined by patterns in weather conditions over an extended period of time.


D). Sydney is correct; the climate of an environment can change constantly based on weather, wind, and front patterns in the area.

Answers

Answer:

C

Explanation:

Common sense

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