Answers
Related Questions
Write the formula: carbon hexabromide
Answers
Answer: C2Br6
Explanation:
if you add 5 protons, 4 neutrons, and 3 electrons what is the net charge of the atom
Answers
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?
Answers
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.
2) If you
move 50 meters in 10 seconds, what is your velocity?
Answers
Answer:
5 meter/second.
Explanation:
You dived the seconds, 10, by the meters, 50.
Which state or states of matter have fixed volume but not a fixed shape?
Answers
Answer:
gas and liquid
Explanation:
I’ll give brainliest, pls help with this mole concept. Due in 2hours
Answers
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.
The half-life of cobalt-69 is 6 years. How much of a 5-gram sample is left after 12 years
Answers
Answer:
that was wrong my bad. just delete my answer
Explanation:
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
Answers
As the temperature increases, the average kinetic energy increases as does the velocity of the gas particles hitting the walls of the container. The force exerted by the particles per unit of area on the container is the pressure, so as the temperature increases the pressure must also increase.
Describe how PERIODS and GROUPS are set up on the Periodic Table of Elements.
Answers
Answer:
Periods are horizontal rows (across) the periodic table, while groups are vertical columns (down) the table. Atomic number increases as you move down a group or across a period.
(Love your pfp btw)
Explanation:
Why is air considered a solution?
Answers
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:
what are the steps to naming simple ionic compounds
Answers
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.
Convert 12.04 x 1023 atoms of helium to moles
Answers
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 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
Answers
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.
To learn more about elliptical orbit here
https://brainly.com/question/21615850
#SPJ2
Write Lewis dot structures for each of the following molecules. Use VSEPR to determine the shape of each molecule. Use electronegativity values to determine the polarity of each molecule.
PH3
CHCl3
H2CO
XeCl4
PBr5
TeF4
ICl5
BF3
KrF2
SO3
Answers
my question is butterfly emerges
A 1.0-mole sample of potassium mass is?
Answers
Answer:
Here is your ans
Explanation:
potassium mass is 39.0983u
Tq
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.
Answers
Answer:
A.....
Explanation:
Carbon dioxide plus water yields glucose (sugar) and oxygen.
After which reaction. is there solid left in the reaction chamber
a)Sodium Azide
b)Ammonium Nitrate
c)Nitroglycerin
d)Both A & B
Answers
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).
In the equation CH4 + 2O2 --> 2H2O + CO2 What is the mass of CO2 produced when 35g of O2 reacts?
Answers
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.
Calculate the molecular formula of a compound with the empirical formula CH O and a molar mass of 150 g/mol.
A) C2H4O2
B) C3H6O3
C) C4H8O4
D) C5H10O5
E) C6H12O6
Answers
The molecular formula : D) C₅H₁₀O₅
Further explanationGiven
The empirical formula CH₂O
The molar mass of 150 g/mol
Required
The molecular formula
Solution
The empirical formula is the smallest comparison of atoms of compound forming elements.
A molecular formula is a formula that shows the number of atomic elements that make up a compound.
(empirical formula) n = molecular formula
(CH₂O)n = 150 g/mol
(12+2.1+16)n = 150
(30)n = 150
n = 5
A 100 kg rock is broken into five smaller rocks for a garden. What is the total mass of all five smaller rocks?
Answers
Answer:
100 kg
Explanation:
you cannot destory mass so, it's going to be the same just broken up pieces
List four rules for rounding numbers.
Answers
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.
Can y’all help for these two questions?
"What are behavioral adaptations?
Why would an animal adapt it's behaviors?"
Answers
Behavioral Adaptation: Actions animals take to survive in their environments. Examples are hibernation, migration, and instincts. Example: Birds fly south in the winter because they can find more food.
Using adaptations to continue to live. Adaptations are any behavioral or physical characteristics of an animal that help it to survive in its environment.
What temperature in Kelvin is 52 degree C?
Answers
Answer:
325 K
Explanation:
The molecules in a gas
Answers
Answer:
? which gas, explain further
Explanation:
(04.05 LC) In which of the following forms is carbon present in the atmosphere? Carbon dioxide Glucose Oil Water vapor
Answers
Answer:
Carbon dioxide
Explanation:
that's all I can say
PLS HELPPPPPPPPPPPPP
Answers
Answer:
3. Structural features
which one is you fav one
Answers
Answer:
the 3rd one
Explanation:
What does the model represent
Answers
Describe what causes the airbag to inflate on the particle level
Answers
Answer:
The chemical at the heart of the air bag reaction is called sodium azide, or NaN3. CRASHES trip sensors in cars that send an electric signal to an ignitor. The heat generated causes sodium azide to decompose into sodium metal and nitrogen gas, which inflates the car's air bags
Explanation:
Boron carbonate decomposes into boron oxide and carbon dioxide, how many moles of carbon dioxide are produced when 5.0 mol of boron carbonate decomposes completely?