Answer:
B. convention
Explanation:
hope you get the right answer
The molecules in a gas
Answer:
? which gas, explain further
Explanation:
A 100 kg rock is broken into five smaller rocks for a garden. What is the total mass of all five smaller rocks?
Answer:
100 kg
Explanation:
you cannot destory mass so, it's going to be the same just broken up pieces
The liver is a group of tissues that produce bile that is used to break down fats. The liver is a(n) _____.
Answer:
Its food for cannibals.
A mole of Br2 and a mole of CH2Br2
Select one:
A. have a mass of 1g each
B. contain the same number of molecules
C. contain one molecule each
D. have the same mass
The term mole is defined as the amount of substance of a system which contains as many elementary entities. A mole of Br₂ and a mole of CH₂Br₂ have a mass of 1g each. Therefore, option A is correct.
What do you mean by mole ?The term mole is defined as the amount of substance of a system which contains as many elementary entities.
1 mole is equal to 6.023 × 10 ²³ molecules.
One mole of any substance is equal to 6.023 × 10²³ units of that substance such as atoms, molecules, or ions. The number 6.023 × 10²³ is called as Avogadro's number or Avogadro's constant.
The mole concept can be used to convert between mass and number of particles.
A mole of Br₂ and a mole of CH₂Br₂ have a mass of 1g each. Because one mole of substance is equal to 6.023 × 10 ²³ molecules.
Thus, option A is correct.
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Is my answer correct?? Please correct me
Thank you!
Answer:
you are right
Explanation:
List four rules for rounding numbers.
Answer:
the number you are rounding is followed by 5, 6, 7, 8, or 9, round the number up. Example: 38 rounded to the nearest ten is 40
If the number you are rounding is followed by 0, 1, 2, 3, or 4, round the number down. Example: 33 rounded to the nearest ten is 30
Rounding fractions works exactly the same way as rounding whole numbers. The only difference is that instead of rounding to tens, hundreds, thousands, and so on, you round to tenths, hundredths, thousandths, and so on.
By rounding off, you could easily figure out that you would need about $6.00 to pay for your groceries.
PLS HELP ASAP! I WILL GIVE BRAINLIEST!! Which of the following explains the conservation of mass during cellular respiration? (4 points)
a The total number of atoms when carbon dioxide and oxygen react stays the same when glucose and water are produced.
b The total number of atoms when water and oxygen react stays the same when glucose and water are produced.
c The total number of atoms when carbon dioxide and water react stays the same when glucose and oxygen are produced.
d The total number of atoms when glucose and oxygen react stays the same when carbon dioxide and water are produced.
Answer:
jayfeather friend me ccccccc
Explanation:
is: cellular respiration creates an energy molecule when glucose is broken down.
Conservation of mass (mass is never lost or gained in chemical reactions), during chemical reaction no particles are created or destroyed, the atoms are simply rearranged from the reactants to the products.
PLS HELPPPPPPPPPPPPP
Answer:
3. Structural features
Convert 12.04 x 1023 atoms of helium to moles
Moles of Helium = 2
Further explanationGiven
12.04 x 10²³ atoms of helium
Required
moles
Solution
The mole is the number of particles(molecules, atoms, ions) contained in a substance
1 mol = 6.02.10²³ particles
Can be formulated
N=n x No
N = number of particles
n = mol
No = Avogadro's = 6.02.10²³
moles Helium :
n = N : No
n = 12.04 x 10²³ : 6.02 x 10²³
n = 2
Which structure is the sun located
In the equation CH4 + 2O2 --> 2H2O + CO2 What is the mass of CO2 produced when 35g of O2 reacts?
Answer:
24.06 g of CO₂
Explanation:
The balanced equation for the reaction is given below:
CH₄ + 2O₂ —> 2H₂O + CO₂
Next, we shall determine the mass of O₂ that reacted and the mass of CO₂ produced from the balanced equation. This can be obtained as follow:
Molar mass of O₂ = 2 × 16 = 32 g/mol
Mass of O₂ from the balanced equation = 2 × 32 = 64 g
Molar mass of CO₂ = 12 + (2×16)
= 12 + 32
= 44 g/mol
Mass of CO₂ from the balanced equation = 1 × 44 = 44 g
SUMMARY:
From the balanced equation above,
64 g of O₂ reacted to produce 44 g of CO₂.
Finally, we shall determine the mass of CO₂ produced by the reaction of 35 g of O₂. This can be obtained as follow:
From the balanced equation above,
64 g of O₂ reacted to produce 44 g of CO₂.
Therefore, 35 g of O₂ will react to produce = (35 × 44)/64 = 24.06 g of CO₂.
Thus, 24.06 g of CO₂ were produced from the reaction.
Write the formula: carbon hexabromide
Answer: C2Br6
Explanation:
The original phase and final phase of a substance are shown. Phase Transition Original Phase Final Phase Solid Liquid What most likely happened during the phase transition?
Answer:
The question appears to speak to the process between Liquid and Solid phases of a substance and seeks to resolve what happened in between.
The short answer is that the solid melted.
Explanation:
Melting is the process of a solid becoming fluid. When the reverse happens, (that is a liquid being solid), is called solidification. There is a temperature at which substances take their liquid form. That temperature is called the melting point. The melting point of ice (that is the temperature at which it starts to turn back to water) for instance is 32 °F.
According to the mechanics of melting, the internal energy of the solid increases, because of exposure to heat and or pressure usually through the application of heat or pressure, which increases the substance's temperature to the melting point.
Cheers
Answer:
Explanation:
the other guy who answered must be retded cause melting isnt even a choice.
Correct Option the substance froze.
what are the steps to naming simple ionic compounds
Answer:
To name an ionic compound, you simply need to find the names of the cation and anion present in the compound and make sure to revise the ends of metal names as needed. First, write out the name of the metal, followed by the name of the non-metal with its new ending.
Explanation:
Write the name of the cation, and then write the name of the anion, changing the ending to "-ide" if it's a single element and leaving it as it is if it's a polyatomic ion.
I’ll give brainliest, pls help with this mole concept. Due in 2hours
Answer:
20 g of copper (II) oxide, CuO
Explanation:
The balanced equation for the reaction is given below:
CuO + 2HCl —> CuCl₂ + H₂O
From the balanced equation above,
1 mole of CuO reacted to produce 1 mole of CuCl₂.
Next, we shall determine the number of mole of CuO needed to produce 0.25 mole of CuCl₂. This can be obtained as follow:
From the balanced equation above,
1 mole of CuO reacted to produce 1 mole of CuCl₂.
Therefore, 0.25 mole of CuO will also react to produce 0.25 mole of CuCl₂.
Finally, we shall determine the mass of 0.25 mole of CuO. This can be obtained as follow:
Mole of CuO = 0.25 mole
Molar mass of CuO = 64 + 16
= 80 g/mol
Mass of CuO =?
Mole = mass /Molar mass
0.25 = mass of CuO /80
Cross multiply
Mass of CuO = 0.25 × 80
Mass of CuO = 20 g
Therefore, 20 g of copper (II) oxide, CuO is needed for the reaction.
3. Why have we not been able to create a fusion reactor on Earth?
Answer:
We are not able to create a fusion reactor on Earth because fusion energy production is not based on a chain reaction, as is fission. Plasma must be kept at very high temperatures with the support of external heating systems and confined by an external magnetic field.
Explanation:
A 1.0-mole sample of potassium mass is?
Answer:
Here is your ans
Explanation:
potassium mass is 39.0983u
Tq
After which reaction. is there solid left in the reaction chamber
a)Sodium Azide
b)Ammonium Nitrate
c)Nitroglycerin
d)Both A & B
Answer:
B.
Explanation:
If we add more SO2 gas to the reaction chamber. To the left. The reaction would drive
backwards to re-establish equilibrium (more reactants made).
which one is you fav one
Answer:
the 3rd one
Explanation:
Can y’all help for these two questions?
"What are behavioral adaptations?
Why would an animal adapt it's behaviors?"
Element X has three electrons in its outermost orbit.
Element Y has seven electrons in its outermost orbit.
What is the chemical formula of the ionic compound
formed by these elements when they react together?
(Use X and Y as the chemical symbols.)
PLEASE SOMEONE EXPLAIN THIS IN DETAIL
Explanation:
element x _ carbon having two shells 2,3
element y _ fluorine atomic no 9 EC 2,7
when carbon react with fluorine it destroyes graphite and form fluorocarbons and thus form covalent bond
hope it helps u
Why is air considered a solution?
Answer:Air is a solution made up of many gases. ... There is more nitrogen than any other gas in air, so it is considered the solvent in an air solution.
Explanation:
Lisa simpson decided that she would test whether her brother were smarter than a mouse she places a cupcake with a mouse can eat it the mouse find the food and eat it the next day list of places a cupcake in the same place but this time puts
(04.05 LC) In which of the following forms is carbon present in the atmosphere? Carbon dioxide Glucose Oil Water vapor
Answer:
Carbon dioxide
Explanation:
that's all I can say
Will give brainliest if correct
Based on what you have observed in the Gizmo, which of the following chemical equations represents photosynthesis?
A. Carbon dioxide plus water yields glucose (sugar) and oxygen.
B. Oxygen plus carbon dioxide yields water and glucose.
C. Glucose plus oxygen yields carbon dioxide and water.
D. Water plus glucose yields oxygen and carbon dioxide.
Answer:
A.....
Explanation:
Carbon dioxide plus water yields glucose (sugar) and oxygen.
Which state or states of matter have fixed volume but not a fixed shape?
Answer:
gas and liquid
Explanation:
Which of the following best describes the Earth's movement around the sun?
A)The Earth is closer to the sun in Summer than in Winter.
B)The Earth moves in a circular pattern around the Moon
C)The Earth's axis moves back and forth, resulting in different seasons
D)The Earth moves in an elliptical orbit around the sun
Answer:
D)The Earth moves in an elliptical orbit around the sun
The statement earth moves in an elliptical orbit around the sun best describes the movement of earth around the sun.
What is earth?Earth is the third planet of the solar system and the only astronomical object known to support life.
What is an elliptical orbit?When an object moves around another object in an oval shaped path, it is known to be revolving in an elliptical orbit.The orbit is elliptical because of Newton's law of gravity.The planets in the solar system orbit the sun in elliptical orbits. Many satellites orbit the Earth in elliptical orbits as does the moon.The movement of the earth around the sun in a fixed path or orbit is called Revolution. The axis of the earth which is an imaginary line, makes an angle of 66½° with its orbital plane.
Hence, option D is the correct answer.
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What does the model represent
HELP PLEASE!! BRAINLIEST!! 5 STARS & THANKS
What happens to the average kinetic energy at a constant temperature? *
1.it increases
2.it decreases
3.it stays the same
4.it disappears