Chemistry High School

What is the wavelength of light in nm with energy of 4.41 x 10^-17 kj?

Answers

Answer 1

Answer: 21

Explanation:

Related Questions

why do blue messel shell get thicker

Answers

up right

read the last 3 paragraph you will see the answer

the greater gravitational force

Answers

Answer:

The stronger the pull of gravity on an object ( the greater it's weight)


Periodic table puzzles

Answers

Answer:

Explanation:

I can explain if you ask

the chemical bond between elements of the two terminals of the periodic table is

Answers

Answer:

Covalent bonds are much more common in organic chemistry than ionic bonds. A covalent bond consists of the simultaneous attraction of two nuclei for one or more pairs of electrons. The electrons located between the two nuclei are bonding electrons.

...

what action is not necessary before lighting a bunsen burner?

Answers

Answer:

Even though you didn't include any option choices in your question, I've searched it up anyways, and every source I found says that the answer is "Leave the gas stop open for a few minutes before lighting to clear the line."

Explanation:

Hope this is what you were looking for :)

If not, then I'm sorry.

A 7.45 L container holds a mixture of two gases at 15 °C. The partial pressures of gas A and gas B, respectively, are 0.364 atm and 0.684 atm. If 0.150 mol of a third gas is added with no change in volume or temperature, what will the total pressure become?

Answers

Answer:

stored and active

Explanation:

both cannot be thransformed into another type of energy

what is the type 1 binary compound for MgCl2

Answers

Answer:

Explanation:

magnesium chloride

which one goes where? ​

Answers

Answer:

precipitation goes to the left box

condensation goes to the bottom box

evaporation goes in the top right box

Explanation:

hope this is helpfull

can you relate to these pictures

Far left precipitation , bottom evaporation , condensation top right . I hope this helped .

Which of these demonstrates one of Newton's Laws of Motion? A seat belt holds you in your seat kicking a bowling ball will affect you more than the ball a fireman is knocked backward when he turns on his hose all three are examples of Newton's Laws

Answers

Answer:

the last one: all three are examples of Newton's laws

Explanation:

i guess



My atomic mass is 35.453

Answers

The element is chlorine

The sample contains 1. 02 mol S. To calculate the mole ratios of the elements, you will divide each molar amount by 1. 02 mol. Calculate the mole ratios of the elements in the compound. Round each ratio to the nearest whole number. Mole ratio of H:S = mole ratio of S:S = mole ratio of O:S =.

Answers

Which of the following are steps necessary to ensure patient safety? O a) Make sure that the medication is dispensed in the same units in which it was prescribed. Ub) Review any calculation questions with the pharmacist. c) Check to see if there's a better medication for the patient's problem. d) Dispense an extra dose to save the patient from having to return in case of loss or damage to one of the doses. O e) Compare the label on the medication with the order from the physician.

A sample of an unknown gas occupies 5.51 L at 1.31 atm. What pressure would thisgas exert in a 0.520 L container if the temperature is held constant?

Answers

Answer:

P₂ = 13.9 atm (3 sig. figs.)

Explanation:

The pressure (P), Volume (V) relationship with Temperature (T) & mass (n) held constant is an inverse proportionality. That is Boyles Law ...

P ∝ 1/V => P = k/V => k = P·V

For two pressure-volume conditions, the proportionality constant (k) remains constant where k₁ = k₂ and P₁·V₁ = P₂·V₂ => P₂ = P₁·V₁/V₂

Given:

P₁ = 1.31 atm.

V₁ = 5.51 L

P₂ = ?

V₂ = 0.520 L

V₂ = (1.31 atm)(5.51L)/(0.520L) = 13.88096154 atm (calc. ans.) = 13.9 atm (3 sig. figs.)

what are the 4 quantum numbers for the last electron in promethium 

Answers

Answer:

Promethium atoms have 61 electrons and the electronic shell structure is [2, 8, 18, 23, 8, 2] with Atomic Term Symbol (Quantum Numbers) 6H5/2.

PLS HELP WILL GIVE BRAINLIEST!
Based on the diagram below, in what period is the atom located on the periodic table? *
a. period 4
b. period 2
c. period 6
d. period 1

Answers

Answer:

C.  Period 6

Explanation:

When a cold pack is put on your ankle what happens to the molecules in your ankle?

Answers

The molecules slow down (when things are cold molecules move slow, when things are hot molecules move fast)

Describe the appearance and properties of a gas.

Answers

Answer:

A gas is light, the molecules are moving very fast, and a gas can change forms due to temp of the area its in.

Hurry for A brainlist

Answers

Answer:

Option C .P=79, N= 118 Atomic number=79 Mass number=197

exist within a compound to hold the
atoms together within molecules

Answers

Answer:

9

Explanation:

I got it right on my last test

What happens to electronegativity as you go down the same group
on the Periodic Table?

Answers

Answer:

decreases

Explanation:

As you go down the same group on the periodic table, the electronegativity of an atom will decrease.

calculate the moles and Molecules presents in ammonia present in 5.6dm3
of its volume STP?

​

Answers

Answer: 0.25 moles NH3

              1.51x10^23 molecules NH3

Explanation:

5.6dm3 (cubic decimeters)

1 dm^3 = 1 liter

We have 5.6L of ammonia (NH3 gas) at STP.  All gases at STP occupy 22.4 liters/mole.  Use this information as a conversion factor:

(22.4 L NH3)/(mole NH3)

Therefore:

(5.6L NH3)/(22.4 L NH3)/(mole NH3) = 0.25 moles NH3

Use Avogadro's number to convert moles to particles/molecules

(0.25 moles NH3)*(6.02x10^23 molecules/mole) = 1.51x10^23 molecules NH3

when you take 10 grams of salt, and dissolve it in 25 grams of hot water what is the solubility

Answers

Answer:

When salt is mixed with water, the salt dissolves because the covalent bonds of water are stronger than the ionic bonds in the salt molecules. ... Water molecules pull the sodium and chloride ions apart, breaking the ionic bond that held them together.

Explanation:

Give an example of radiation?

Answers

microwave, light from a candle, xrays, uv light from the sun

Answer:

Ok then answer my question

Explanation:

sorry i cant answer

What is the importance of water?

Answers

IMPORTANCE:

Water is very important. Whether it's from washing your dishes to hydrating, to simply just watering your flowers, water is important.

Washing Dishes

When you eat, after you eat, you wanna clean your dish. You're not gonna keep it dirty, you're going to have to wash it. Soap and water are often used when washing dishes. It's the best way to get it cleaned.

Hydration

Drinking water can have many benefits. It can make you more productive, you can even lose weight, no migraines, and it can boost your metabolism.

Watering Flowers

It's helpful to water plants because watering them on a basis/routine can help them gain nutrients. No watering the plant can result the plant drooping down and for it to become droopy and dry.

In a double-replacement reaction, the

Answers

Answer: just want points

Explanation: POINTS!! ;)

I would be so grateful if someone helped me with my lab report. My lab report is about identifying unknown solids.
- How could I start my introduction?
Thank you and have a great day!!

Answers

Answer:

good afternoon

Explanation:

like that you dummy

PLEASE HELP ME ASAAAAPPPPPPPPPPPPPP!!!!!!!!!!!!!!!!!!!!!!!

Balance the chemical equation using the algebraic method.

C4H10+O2=CO2+H2O

SHOW YOUR WORK PLEASEEEEEEEEE

Answers

The given equation to be balanced is
C
4
H
10
+
O
2
→
C
O
2
+
H
2
O

We begin by counting the number of
C atoms on both sides. We have 4C on the left and 1C on the right.
⇒
C
4
H
10
+
O
2
→
4
C
O
2
+
H
2
O



Now count the number of H atoms on both sides. We have 10H on the left and 2 H on the right.
⇒
C
4
H
10
+
O
2
→
4
C
O
2
+
5
H
2
O



Now, O's turn. We have 2 O on the left and 13 O on the right.
⇒
C
4
H
10
+
13
2
O
2
→
4
C
O
2
+
5
H
2
O



or

2
C
4
H
10
+
13
O
2
→
8
C
O
2
+
10
H
2
O


What is the molarity of 48.6 g of magnesium (Mg) ions in 4 L H2O? Show cancelation of units to get credit. PLEASE HELP!!!

Answers

Answer:

0.50M (1 sig. fig.)

Explanation:

The problem objective is 'Molarity (M)', so set up given data to reduce to moles per liter. That is ...

Molarity = moles Mg/Liters of solution = (48.6g/24.31g·mole⁻¹)/(4Liters) = 0.499794323M (calc. ans.) ≅ 0.5M (1 sig. fig.)

Find the volume of 5.74 grams of NO2 (Hint: use two factors)

Answers

Answer:

1.2 cm^3

Explanation:

5.74 grams of a something occupies a volume of 1.2 cm^3 .

What is wrong with writing the electron configuration of a ground state atom as 1s2 2s2 2p6 3s2 3p6 3d10 4s2 ?

Answers

Answer:

Writing of the subshells

Explanation:

Given configuration:-

[tex]\\ \sf\longmapsto 1s^22s^22p^63s^23p^63d^{10}4s^2[/tex]

Actual configuration:-

[tex]\\ \sf\longmapsto 1s^22s^22p^63s^23p^64s^23d^{10}[/tex]

This is because 4s orbital is less in energy than that of 3d

make a punnett square for these two parents AA × aa​

Answers

Answer:

Aa

Explanation:

all of the punnet squares would be Aa because there is AA to aa

Other Questions
Please help me please help me help please help me A mineral within a metamorphic rock that can be used to narrowly constrain the temperature and pressure of rock formation is termed a (n) ________ mineral. Please help its due today PLEASE HELP TYSM IF YOU DO IT CORRECTLY I will also mark it brainlist D: Which word does not belong in this group (Floyd, Lemonade, wolf, lady, Panther p)? Jermaine and Denise are the owners of a small company. They are moving to a new office space and need to decide on a layout that will work best for them and their 12 employees. Jermaine wants to have one big communal workspace for all employees, including Denise and himself; a conference room; a big break room; and two smaller rooms with doors where employees can go if they need to have a private telephone conversation with a client. Denise wants offices for Jermaine, herself, and their two department managers; cubicles for all other employees; a conference room; a meditation room; and a small break room. After talking, Denise and Jermaine each agree to make certain concessions in order to get what they want. Together, they agree that Denise and Jermaine will have offices, and the managers and other employees will share a communal workspace. They will also have a conference room, a meditation room, a large break room, and one room for private calls with clients. What conflict management strategy have Jermaine and Denise used? Given the function f(x)=-x2 +2x + 6, find f(1) and f(4). Compare the values. Paul needs to buy $50% more wood so he can make a workbench. He already has 12 square metres. If he buys 50% more, how much more will he have, and now how much will he have in total? You want to buy roses for your mother. Roses cost $2 per rose and a $10 fee for delivery. Write the equation to model this situation. write the equation of a line that is perpendicular to y=7/5x+6 and that passes through the point (2,-6) Help please and thank you If each of the following quadrilaterals are trapezoids, find the missing measures. Show your work. Find the area of the green region Write the statement as a conditional: He gets mad when she drives fast. A gaseous mixture contains 0.545 bar H, (8), 0.517 bar N, (8), and 0.107 bar Ar(g). Calculate the mole fraction, X, of each ofthese gases. Which of the following was not a cause of reformation Which is not considered a healthy alternative that can be used to cut cravings? rapid breathingmeditatingwalkingdrinking water Sophie is ordering a taxi from an online taxi service. The taxi charges $3.50 just for the pickup and then an additional $1.25 per mile driven. How much would a taxi ride cost if Sophie is riding for 4 miles? How much would a taxi ride cost that is m miles long? Summarize Alexandra Sifferlin's key claims for the story, Why Are Teenage Brains So Hard To Understand. Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. Scientific data can be organized in a variety of ways. Which of the following visual displays would be best for describing the percentages of different gases in the atmosphere? a. circle graph b. line graph c. bar graph d. any of the above