Answer:
5 mol Xe × 6.02×10^23
------------ ----------------
1 1 mol Xe
3.01x10^24
I would calculate on your calculator to make sure
lemon and amla have a sour taste. why
Answer:
They both contain citric acid.
Explanation:
Citric acid is sour and is found in citrus fruits such as lemon and amla. Acids usually have a sour taste and therefore lemon and amla are sour.
PLS HELP MEEEEEEEEEEEEEE WITH SCIENCEEEEEEEEEE
Answer:
I believe this is a measuring cylinder? and i think the volume is 35cm^3
Explanation:
hope this helps!
What are two basic categories of matter
What is the molecular formula for a compound that is 46.16% carbon, 5.16% hydrogen and 48.68% fluorine if the molar mass of this compound is 156.12 g?
C6H8F4
C5H10F5
C6H6F3
does this image show a physical or chemical change?
Answer:
Physical
Explanation:
When a substance changes from liquid to gas it's a physical change. There is no chemical reaction between the rubbing alcohol or anything else that would change it's chemical composition.
According to the Law of Conservation of Matter, what happens to atoms of gas in a balloon when it is placed in the freezer?
the number of atoms stays the same and the energy stays the same, keeping the volume the same
the number of atoms stays the same as the atoms lose energy to the colder freezer, slow down, get closer together, shrinking the volume
the number of atoms increases, causing an increase in energy and an increase in volume
the number of atoms decreases, which takes up less space and decreases the volume
Answer:
the number of atoms stays the same as the atoms lose energy to the colder freezer, slow down, get closer together, shrinking the volume
Explanation:
When a liquid is cooled, the average energy of the molecules decreases. At some point, the amount of heat removed is great enough that the attractive forces between molecules draw the molecules close together, and the liquid freezes to a solid.
I hope it helps.
The materials are carried in a cell by the what
Answer:
The endoplasmic reticulum
what is 37degrees Celsius in Si units
Answer:
310.15 Degrees Kelvin
Explanation:
37 Degrees Celsius = 310.15 Degrees Kelvin = 98.6 Degrees Fahrenheit
Conversion Factor from Celsius to kelvin
or 37 + 273 = 310 Degrees Kelvin
Copper(I) nitrate, CuNO3, is dissolved in water and forms a transparent, blue mixture. What type of mixture is it
Which of the following equations represents a nuclear charge?
Select one:
a. A
b. B
c. C
d. D
Answer:
C
Explanation:
The reaction represents transmutation, which is a nuclear reaction where electrons are transferred.
Why must a solution of naoh be standardized using a primary standard, such as khp?.
explain why a mixture is used as the electrolyte??
Answer:
You need a mixture of positive and negative ions
Explanation:
A mixture is used as the electrolyte because a mixture of positive and negative ions are needed.
What is a Mixture?This consists of two or more chemical substances which aren't chemically bonded together.
Electrolyte on the other hand conducts electricity when dissolved with the help of the mixture of positive and negative ions.
Read more about Electrolyte here https://brainly.com/question/14654936
#SPJ2
What adaptation’s do swallowtail possess?
Plz it’s urgent
4 items being divided equally among 3 people
A pure substance __________ . must be an element. can be separated into simpler substances by physical means. has different chemical and physical properties depending on its source. can be separated into simpler substances by chemical means.
Answer:
a pure substance has different chemical and physical properties depending on its source
What is the role of flagella?
Answer:
a motility organelle that enables movement and chemotaxis
Explanation:
pls mark brainlist
What does an electrically neutral atom have the same number of?
protons and electrons
protons and neutrons
electrons and neutrons
protons, electrons, and neutrons
Answer:
it has an equal number of negative electric charges (the electrons) and positive electric charges (the protons).
Explanation:
So in all of the answers it would be A. Protons and Electrons
Elements on the right side of the periodic table are called.
Answer:
Nonmetals is the answer!
Hope this helped!
Answer:
NONMETALS. :)
Explanation:
im in sixth btw.
A sample of hydrogen exerts a pressure of 0.429 atm at 50.00°C. The gas is heated to
95.00°C at a constant volume. What will its new pressure be?
Answer:
5.847atm
Explanation:
according to Gay- Lussac's law
P1/T1 =P2/ T2
Select the correct answer. Which statement about cellulose is true? A. It’s a synthetic polymer. B. It’s a raw material used to make plastic. C. It’s produced using oil and gas. D. It’s used to make paper products.
Answer:
It's used to make paper.
Explanation:
Plato answer.
Radiant energy is emitted from all objects with temperatures greater than ____________. This means ____________ objects emit radiant energy.
Radiant energy is emitted from all objects with temperatures greater than ABSOLUTE ZERO. This means ALL objects emit radiant energy.
Radiant Heat and TemperatureRadiant heat is a type of energy that largely depends on the temperature of an object.
This type of energy (radiant energy) is emitted from all objects and can be observed when heat is absorbed on the surface of another material.
Radiant energy can be defined as a type of electromagnetic energy.
Learn more about radiant energy here:
https://brainly.com/question/637839
Coryell walks 11 km south, and then turns east and walks 13 km. What is his
distance?
Answer:
its 24 cuz 13 + 11 =24. you're still walking 24 km in all. your going _|
[WILL MARK BRAINLIEST!!] Describe the relationship between molecular structure and the strength of electrostatic
forces between molecules. How does this impact boiling and melting points?
Answer:
increase the bonding strength between two or more molecules
hope this help
Explanation:
Boiling points and melting points
The overarching principle involved is simple: the stronger the noncovalent interactions between molecules, the more energy that is required, in the form of heat, to break them apart. Higher melting and boiling points signify stronger noncovalent intermolecular forces.
Girls are usually completely physically mature by _____ years old. A. 17 B. 19 C. 14 D. 21.
Answer:
A. 17
Explanation:
Took the test on Edge & got 100% :D
The electron configuration of element Y ends in s?p4. What is
the symbol for the ion most commonly formed by this element?
a y2+
b y2-
с ү6+
d Y
This problem is providing us with the end of the electron configuration an element as s²p⁴ and asks for the most commonly formed ion. At the end, the answer is b Y²⁻.
Electron configurationIn chemistry, when analyzing electron configurations, one must first take into account how the energy levels must be filled with electrons.
Now, note the problem states that the electron configuration ends by s²p⁴, which means it is closer to complete the octet so it needs two electrons in order to do so, as it behaves as a nonmetal.
Therefore, the most commonly ion formed by this element is Y²⁻, because of the fact that it needs two electrons to complete the octet and thus become chemically stable and likely to bond with a metal.
Learn more about electron configuration: https://brainly.com/question/5524513
The decomposition of A to B is a first-order reaction with a half-life of 32.8 min:
A → 2B
If the initial concentration of A is 0.595 M, how long will it take for the concentration of A to decrease by 10.4 %?
Which statement best describes the characteristics of the Sun?
Red in color
at the center of our galaxy
Hotter than most stars
medium in size
How many moles of H2O2 are produced in the production of hydrogen peroxide when 13 grams of oxygen are used
How does carbon dioxide affect the Earth's climate?
Question 17 options:
Carbon dioxide is being added to the soil, which causes weather phenomenon.
Carbon dioxide mixes with water vapor to take harmful chemicals out of the air.
While carbon dioxide is in the air waiting to be reabsorbed it traps the sun's heat.
Answer:
While carbon dioxide is in the air waiting to be reabsorbed it traps the sun's heat.
What color of light is emitted from an excited hydrogen atom where the electron has been promoted to n
Answer:
n1 = 2, n2 = 4
1/wavelength = 1.097*10^7[1/2^2 — 1/4^2]
1/wavelength =0.20568*10^7
wavelength = 486.192*10^-9 Or
wavelength = 486.19 nm (blue color)
Explanation:
I just answered this in class
Calcium-49, a radioactive isotope, has a half-life of 9 minutes. If an 80-gram sample of the isotope decays for 27 minutes, how many grams of the original sample remain?
Select one:
a. 60
b. 10
c. 40
d. 20