Answer:
1.62 × 10⁻²⁴ J
Explanation:
Step 1: Given and required data
Frequency of this radiation (ν): 2.45 × 10⁹ Hz (2.45 × 10⁹ s⁻¹)Planck's constant (h): 6.63 × 10⁻³⁴ J.sStep 2: Calculate the energy (E) of this electromagnetic radiation
We will use the Planck-Einstein's relation.
E = h × ν
E = 6.63 × 10⁻³⁴ J.s × 2.45 × 10⁹ s⁻¹ = 1.62 × 10⁻²⁴ J
PLS HELPP
1. Take two water molecules and bring them close together. The hydrogen of one water molecule is attracted to what part of the other water molecule?
_____________________________________________________________
2. This attraction between parts of two different polar molecules is called __________ bonding.
_________________________________________________________________
3. Which type of bond holds the oxygen and hydrogen atoms together within a water molecule?
____________________________________________
4. Pull the hydrogen off of the oxygen in a single water molecule. Which bond is stronger, a hydrogen bond or a covalent bond?
_____________________________________________
Answer:
The slight positive charges on the hydrogen atoms in a water molecule attract the slight negative charges on the oxygen atoms of other water molecules. This tiny force of attraction is called a hydrogen bond. This bond is very weak.
Explanation:
:)
Besides radium, what other world-altering discoveries can you think of that both
led to advancement, and also tragedy?*
Answer:
I'm not really sure but might be D
One other world-altering discovery that led to both advancement and tragedy is the discovery of nuclear power. Nuclear power has been harnessed for its ability to generate large amounts of energy.
Nuclear science has had significant advancements in various sectors, such as electricity production, medicine, and space exploration. However, the same discovery also led to tragic incidents like the bombings of Hiroshima and Nagasaki during World War II.
These tragic events highlighted the destructive power of nuclear energy and raised concerns about its safety and potential for misuse. Despite the tragic consequences, nuclear power continues to be an important source of energy, but the focus has shifted towards developing safer and more sustainable nuclear technologies.
Learn more about nuclear science,here:
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A sample of xenon gas occupying 10.0 mL is collected in a laboratory at 27°C and 1.25 atm. What is the volume of the gas at standard conditions?
An aluminum ion has 13 protons, 14 neutrons, and 10 electrons. What is the charge of the aluminum ion?
Answer:
the charge of the aluminum ion is +3
FeCo2+NaCo3+Hg+Co2No3
Explanation:
the answer is sodium carbonate
how many kilocalories of heat are involved in changing the temperature of each of the following: a) 25.0 g ice from -4.00 °c to 0 °c
What is the pressure exerted by 32g of o2 in a 22.0L container at 30.0 degrees Celsius
Answer:
114 kPa
Explanation:
2
DI
-
U
3
ili
=
3
5
5
6
Explain how you think the availability of water affects human population size in a region.
Describe data from Task 1 that allows you to conclude this cause-and-effect
relationship between water availability and population.
vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
Write the skeletal formula equation for: solid potassium, K, reacts with
chlorine gas, Cl2, to produce solid potassium chloride, KCI.
What is the pH for a solution that has an OH ion
concentration of 1.0 x 10^4 M?
Select one:
7
4
10
5
pls answer if you do ty so much
Answer:
c
Explanation:
What did scientists believe about caloric? State two examples of the scientific phenomena that the caloric theory explained
Answer:
that it was difficult, bc they didnt accept the particle model of matter, air molecule get warmer and explains charles law (i think)
How does chemistry help the environment?
Answer:
Chemistry can help us to understand, monitor, protect and improve the environment around us.
Explanation:
I hope this helps u! :D
help me on question
pleaseeeeeee
Calculate the pH if the pOH = 7.4
Round your answer to two decimal places.
i need points
Explanation:
what word means to bend light rays toward each other
Most of earths fresh water is in glaciers
True or false
PEASE HELPP
Answer:
True
Explanation:
An aluminum (Al) boat anchor has a mass of 6800 grams. How many
moles of aluminum are in the boat anchor?
3. Find the molar mass of the following compounds:
a. Ammonia NH3
b. Iron (II) Nitrate Fe(NO3)2
Answer: a.4
Explanation:
n=1
h=3
What scientist use the scientific method to determine if cold was a substance?
Answer:
diamns
Explanation:
What number should replace the question mark to show the number of C6H1206 (glucose) molecules in a balanced
chemical equation?
The reaction heated up 100 g of water in the beaker from 25 °C to 50.0 °C. The specific heat capacity of water is 4.184 J/g°C. Calculate the amount of heat energy that was released by the reaction.
Answer:
The amount of heat energy that was released by the reaction is 10,460 J.
Explanation:
Sensible heat is that which a body or an object receives or releases and causes its temperature to increase or decrease without affecting its molecular structure and therefore its state.
In other words, sensible heat is the amount of heat that a body absorbs or releases without any changes in its physical state (phase change). When a body is supplied or absorbed sensible heat, the temperature varies.
The equation that allows calculating heat exchanges is:
Q = c * m * ΔT
where Q is the heat exchanged by a body of mass m, made up of a specific heat substance c and where ΔT is the temperature variation.
In this case:
c= 4.184 [tex]\frac{J}{g*C}[/tex]m= 100 gΔT= Tfinal - Tinitial= 50 C - 25 C= 25 CReplacing:
Q= 4.184 [tex]\frac{J}{g*C}[/tex] *100 g* 25 C
Solving:
Q=10,460 J
The amount of heat energy that was released by the reaction is 10,460 J.
All of the following are forms of water in the atmosphere EXCEPT _________.
Group of answer choices
A. ozone
B. precipitation
C. ice
D. vapor
Answer:
OZONE
Explanation:
HOPE IT HELP
MARK ME AS BRAINLIEST
Choose the words or phrases that correctly complete the paragraph.
Mia decided to research the hydrosphere for a class project. She is focusing on the ways the ocean varies in salinity, temperature, and depth. As you descend into the ocean, the water temperature
Choose-increases, heats,lose force,decreases(for both)
, while the water pressure
Choose...
.
Answer:
As you descend in the ocean water temperature and pressure decrease.
Explanation:
"Cold water has a higher density than warm water. Water gets colder with depth because cold, salty ocean water sinks to the bottom of the ocean basins below the less dense warmer water near the surface. The sinking and transport of cold, salty water at depth combined with the wind-driven flow of warm water at the surface creates a complex pattern of ocean circulation called the 'global conveyor belt.'" - National Ocean Services
Describe Connections in a Text
Describe the connection between coal power and nuclear power from Turn on the Power. Use the
ideas from the Compare Ideas in a Text activity to describe how the ideas are alike and different.
Coal power and nuclear power are
alike because they both...
Coal power and nuclear power are
different because coal power...
and nuclear power...
Answer:
thanks
Explanation:
Imagine that you have 100g of water.
You start dissolving KNO3 in the water and you find that after you've dissolved about 55 g of KNO3, you can't dissolve any more; it just sinks to the bottom.
Approximately what is the temperature of the water?
Round your answer to the nearest whole number and submit the number only; no units.
Answer:
Explanation:
So, just find 55 on the solubility side and with your finger just move to the right untill you touch the line you should get in between 46-48. I would go more for 48.
Hope you have a wonderful day!
5. Write a short explanation for why simple molecular substances have no electrical
conductivity. Include the words: electrons and ions
Step 5: Measure Pressure and Volume with the Weight
of the Book
Total the mass on the syringe. Record it in the
correct row of the data table.
Click and drag the book to increase pressure.
Click the syringe to zoom in and see the volume.
Answer:
0.498
Explanation:
because that is the right answer
Answer:
the answer is
498 g
.498 kg
Explanation:
In this experiment, you made observations of the ______
and the ____
You used these observations to write the ____
In this experiment, you made observations of the reactant and the product.
You used these observations to write the balanced chemical equation.
What is chemical equation?The symbolic representation of chemical reaction is called chemical equation.The chemical equation should be balanced.
To learn more about chemical equation here.
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Answer:
{first part} reactants, products, balanced chemical equation, classify the reaction
{second part} color change, formation of a gas, formation of a solid
Explanation:
edg 23'
You are growing a garden and notice that the soil is always wet. What type of soil do you have?
Sand
Silt
Clay
Loam
Answer:
Clay
Explanation:
clay does not allow water to flow