Answer:
Found this off of google, "Henry's law comes into play every time a bottle of Pepsi (or any other carbonated drink) is opened. The gas above the unopened carbonated drink is usually pure carbon dioxide, kept at a pressure which is slightly above the standard atmospheric pressure."
HELP ASAPPPP
Cobalt-60 has a half-life of 5.3 years. A sample measures 0.95g of cobalt-
60. If the sample originally had 5.2g of colbalt-60, determine its age in
years or the time elapsed in years. Round up answer in the nearest whole
number and no additional text or unit. *
Answer:
13 years
Explanation:
From;
0.693/t1/2 = 2.303/t log (No/N)
Where;
t1/12 = half-life of Cobalt-60 = 5.3 years
t = time taken = the unknown
No = mass of radioactive material originally present = 5.2 g
N = mass of radioactive material at time t = 0.95 g
Substituting values;
0.693/5.3 = 2.303/t log (5.2/0.95)
0.131 = 2.303/t(0.738)
0.131 = 1.6996/t
t = 1.6996/0.131
t = 12.97 years
t = 13 years(to the nearest whole number)
help pls I will give brainliest!
Answer:
The answer is D, I would type it out but it is to long and I'm kind of lazy, but anyways! Your answer is D
Hope This Helps!
Why can gases be compressed easier than liquids and solids?
F.
Gases have smaller atomic nuclei than solids and liquids.
G.
Solid materials go through chemical changes when they are compressed.
H.
The electron clouds in atoms of solids and liquids are much larger.
J. The space between gas molecules is bigger than solid and liquid molecules.
Answer:
J
Explanation:
If a net force of 4 N caused a football to accelerate 8 m/s2 across a football field, what was the mass of the football?
Answer:
Mass is .5kg
Explanation:
F=ma, plug in your numbers:
F=4N
A=8m/s^2
4=m8
m=4/8
Meiosis occurs in
embryo cells
plant cells
reproductive cells
animal cell
Answer:
Meiosis is a type of cell division - like mitosis, but it results in four haploid cells with one-half the number of chromosomes as the original diploid cell. Meiosis occurs in plants only during sexual reproduction in specialized cells to produce a haploid egg cell.
Answer:
reproductive cells!
Explanation:
source: oddesyware:"So,how are egg and sperm cells created? The process of cell division in REPRODUCTIVE CELLS IS CALLED MEIOSIS." Hope this helps!
Which of the following is not a controllable risk factor?
a. smoking
b. inactivity
c. aging
d. over eating
Answer:
C) Aging
Explanation:
You can't stop that or change the rate that you age at. its inevetable :D
Which family of elements has six electrons in d-type orbitals?
Answer: Selenium is a member of the sulfur family with elements including tellurium and polonium. This family has six electrons in the outermost shell. Selenium specifically has an electron configuration of 2-8-18-6. The six electrons in the outermost shell allow selenium to have a variety of valence numbers.
Explanation:
what is the formula for dihydrogen tetraoxide
It's been a while... but I'm pretty sure it's
H₂O₄
what are green boxes on periodic tables
Answer:
The basic metal ones?
Explanation:
...
How does a longshore current change the beach
Answer:
As this sheet of water moves on and off the beach, it can “capture” and transport beach sediment back out to sea. This process, known as “longshore drift,” can cause significant beach erosion.
An ionic compound is
A.a salt
B.held together by a transfer of electrons
C.composed of anions and cations
D.held together by sharing of valence electrons
Which of these describes a challenge that the engineer of a high-altitude
airplane would need to consider?
A. More fuel is used at higher altitudes.
B. The airplane may succumb to the power of gravity as lift
decreases at higher altitudes.
C. The airplane may need a heat shield for protection from sonic
booms.
O D. The airplane will create more drag at higher altitudes than lower
altitudes.
Answer:
I think its (B)
Explanation:
as when the air thins out at higher elevations, your lift decreases so at some point, the plane cant produce enough lift to overcome gravity.
1 Select the correct answer! Which statement best explains the octet rule? A. Atoms gain, lose, or share electrons to achieve a full valence shell. D B. Compounds always consist of eight electrons. oa. |||||Molecules always consist of eight atoms. OD. All atoms require eight electrons to form bonds. Reset Next Entum. All rights reserved.
Answer:
A. Atoms gain, lose, or share electrons to achieve a full valence shell
Explanation:
The octet rule is best explained as the process in which atoms lose or gain or share electrons to achieve a full valence shell.
In this process bonds are formed when there is an attraction between the two substances. For electrovalent compounds, an atom will lose electrons or gain electron to form an ion, the electrostatic attraction causes the bond formation. Covalent compounds, form by sharing of electrons.Therefore, the octet rule is attained when atoms gain full valence configuration.
10. A(n) eclipse occurs at a full moon when Earth is directly between the moon and the sun.
Answer:
Yes indeed
Explanation:
A factory produces a certain chemical at a rate of 3.5 grams per second. How many kilograms of the chemical are produced each hour?
1 kilogram = 1.000 grams
1 hour = 3.600 seconds
Express the answer to the correct number of significant figures.
The factory produces
kilograms of the chemical per hour.
Answer:
12.6kg
Explanation:
3.5×3,600 then convert to kg
Write the general formula of an alkane and use this to predict the 97th member
of the alkane series.
Explanation:
The general formula of an alkane is given as;
CₙH₂ₙ₊₂
n is the number of the member;
For the 97th member in the series;
n = 97;
2n + 2 = 2(97) + 2 = 196
So, the 97th member is;
C₉₇H₁₉₆
This is how to apply the formula of alkanes which are saturated hydrocarbons to find any member of the series.
Isopentyl acetate is the molecule largely responsible for the aroma and taste of bananas. It is made up of carbon, hydrogen, and oxygen. Combustion of a 3.256-g sample of isopentyl acetate produces 7.706 g CO2 and 3.156 g H2O. Using these results, what is the correct empirical formula for isopentyl acetate?
Answer:
Explanation:
7.706 g of CO₂ will contain 12 x 7.706 / 44 g of C
= 2.1 g of C .
This will be contained in 3.256 g of isopentyl acetate
3.156 g of H₂O will contain 2 x 3.156 / 18 g of H
= .351 g of H
This will be contained in 3.256 g of isopentyl acetate
Rest will be oxygen
amount of oxygen in 3.256 g of isopentyl acetate
= 3.256 - ( 2.1 + .351 )
= .805 g
ratio of C , H , O in isopentyl acetate
= 2.1 g : .351 g : .805 g
2.1 / 12 : .351 / 1 : 0.805 / 16 ratio of moles
= .175 : .351 : .05 ratio of moles
= 3.5 : 7.02: 1
= 7 : 14 : 2
empirical formula of isopentyl acetate
= C₇ H₁₄ O₂ .
If the mass is 7150 kg, and the
acceleration is 2 m/s2, then what is the
force?
Explanation:
f= ma
f= 7150 *2
f= 14300N
The force will be equal to 14300N when the mass is 7150 kg and the
acceleration is 2m/s².
What is force?Force is an external agent that can change a body’s state of rest or motion. Force has a direction and a magnitude so it is a vector quantity. The SI unit of force is Newton and the unit used is Kgm/s².
Force can change the state of a body from rest to motion and can accelerate the speed of a moving body. The direction of a moving object can be changed by applying force.
The force is expressed by the product of the mass (m) and acceleration (a) of an object. The mathematical equation for force can be expressed in the form of:
F = ma
Given, the mass (m) = 7150 Kg and acceleration (a) = 2 m/s²
Then, force, F = (7150 Kg) × (2 m/s²)
F = 14300 Kgm/s²
or, F = 14300 N
Therefore, the force of the object will be equal to 14300 N.
Learn more about force, here:
https://brainly.com/question/13191643
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help!!!!?????????? plssssssss
Answer: it’s b)
Explanation: that’s the only difference that is listed
Answer:
I think it is B
Explanation:
What is the difference between a hyrdrogen atom and a hydrogen molecule?
Answer:smaller
Explanation:
Answer:
Explanation:
A hydrogen atom (H) is bonded to form hydrogen gas(H2)(a molecule)
If L = 5, then the magnetic quantum number "mL" can be equal to
a. -4, -3, -2, -1, 0, +1, +2, +3, +4
b. -5, -4, -3, -2, -1, 0, +1, +2, +3, +4, +5
c. 0, 1, 2, 3, 4
d. 0, 1, 2, 3, 4, 5
b. -5, -4, -3, -2, -1, 0, +1, +2, +3, +4, +5
Further explanationEach orbital in an atom consists of 4 quantum numbers
n is the principal quantum number.
l is the angular momentum / azimuthal quantum number
ml, the magnetic quantum number
ms, the electron-spin quantum number
Value of n: positive integer
value of l: s = 0, p = 1, d = 2, f = 3 , ..(n-1)
ml value: between -l to + l
ms value: +1/2 or -1/2
So for L=5, mL value : -5 to +5
Tendency of an object to float
Answer:
Buoyancy is the ability or tendency of an object to float in a fluid: a liquid or a gas. This happens because fluid pressure increases with depth. According to Archimedes' Principle, the buoyant force on a submerged object is equal to the weight of the liquid displaced by the object.
Explanation:
A Student notes that a chunk of wood is much lighter after it has been burned. He concludes that burning a substance destroyed some of the mass in that substance. Doi you agree or disagree explain why or why not.
Answer:
No.
Explanation:
When mass is destroyed, it has to have been transformed into something else. Otherwise that would violate the Law of Conversion of Mass. In this case, the wood converted some of its mass in chemical energy to thermal (or heat) energy.
plsss helpppp
im confused i dont know the answer
pls
N and C
_____________________________________WHY OPTION A?Because Lithium and Sodium belong to group 1A whereas Magnesium is from group 2A, which are S block elements and they form ionic bond.
_____________________________________HOPE IT HELPS!Answer:
N and C
Explanation:
Os the right answer
Now look closely at the patterns in the table. Compare the elements in each column and
row. What can we say about elements in the same group and elements in the same period
of the periodic table?
Select all the correct answers.
- The number of electrons in the second energy level increases by one down each
column.
Elements in the same row have the same number of ocupied energy levels.
For each column, the last occupied energy level has the same number of electrons.
The number of electrons in the first energy level increases by one from Li to Ne.
Answer:
A the first 1
Explanation:
who know how to do this thank you
Number of neutrons :
Argon=22
Boron=6
Further explanationThere are two components that accompany an element, the mass number and atomic number
Atoms are composed of 3 types of basic particles (subatomic particles): protons, electrons, and neutrons
The Atomic Number (Z) indicates the number of protons and electrons in an atom of an element.
Atomic number = number of protons = number of electrons ⇒ neutral number
Atomic mass is the sum of protons and neutrons
Atomic Number (Z) = Atomic mass (A) - Number of Neutrons
Argon has an atomic number of 18 and a mass number of 39,948
number of neutrons =
[tex]\tt 39.948-18=21,948\approx 22[/tex]
Boron has an atomic number of 5 and a mass number of 10,811
number of neutrons =
[tex]\tt 10.811-5=5.811\approx 6[/tex]
ELECTRONS AND STUFF HELP
How many total electrons are contained in the orbitals of an ion of tin (IV) ?
Answer:
6 6 6 6 6 6 6 6 6 6 66 666666666
To what pressure must a gas be compressed in order to get into a 3.00 cubic foot
tank the entire weight of a gas that occupies 400.0 cu. ft. at standard pressure?
Answer:
133.3atm
Explanation:
Given parameters:
Initial volume = 400ft³
Final volume = 3ft³
Initial pressure = 1atm
Unknown:
Final pressure = ?
Solution:
To solve this problem, we apply Boyle's law which states that "the volume of a fixed mass of a gas varies inversely as the pressure changes if the temperature is constant".
Mathematically;
P₁V₁ = P₂V₂
P and V are pressure and volume
1 and 2 are initial and final states;
Insert parameters and solve;
1 x 400 = P₂ x 3
P₂ = 133.3atm
24H2S + 16HNO3 3Sg+ 16NO + 32H2O
Answer:
24 sultur with 48hydrogen+16 hydrogen,nitrogen and 48 oxygen+16 nitrogen,16 oxygen+62hydrogen and 32 oxygen
Explanation:
How do the data support your claim above? Explain your statement above.
Answer:
the data will support my theory if the results are right for my hypothisis
Answer:
That guys answer is right i'll be trying my best to answer as much wrong in correct answers if wrong i will correct them
Explanation:
sorry i couldn't help theres over more then 200,000 people who uses brainy
