All cations are positive because cations are formed due to loss of electrons. So they are electron deficient.
The formation of a chemical bond between two or more atoms, molecules, or ions results in the formation of a chemical compound. A chemical bond is a long-lasting attraction between atoms or ions that enables the formation of molecules and crystals. Electrostatic contact between oppositely charged ions forms ionic bonds, whereas electron sharing forms covalent bonds.
Chemical bonds link molecules and generate transient connections that allow life to exist. Chemical bonding includes covalent, ionic, and hydrogen bonds, as well as London dispersion forces. Valence electrons are electrons that are the furthest away from the nucleus, have the least attraction from it, and so are the most reactive.
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What change in volume results if 75.0 mL of gas is cooled from 100.0 °C
to 0.00 °C
Answer:
Final volume v2 = 0 ml
Explanation:
Given:
Initial temperature = 100°C
Initial volume = 75 ml
Final temperature = 0°C
Find:
Final volume
Computation:
Using Charles law formula;
⇒ V1 / T1 = V2 / T2
Where
⇒ Initial temperature = T1
⇒ Initial volume = V1
⇒ Final temperature = T2
⇒ Final volume = V2
So,
⇒ 75 / 100 = V2 / 0
Final volume v2 = 0 ml
A gas has a volume of 10.0 L at 20 degree Celsius. At what temperature does the gas have a volume of 20.0 L ?
Answer:
286 K
Explanation:
From the question,
Applying Charles law,
V/T = V'/T'.................... Equation 1
Where V = Initial Volume of gas, T = Initial Temperature of gas in Kelvin, V' = Final Volume of gas, T' = Final Temperature of gas in Kelvin
Make T' the subject of the equation
T' = V'T/V.................. Equation 2
Given: V = 10.0 L, V' = 20.0 L, T = 20°C = (20+273) = 293 K.
Substitute these values into equation 2
T' = (20×293)/10
T' = 586 K
Hence the temperature of the gas is 586 K
calculate the number of atoms in 112 g of iron.
Answer:
1 mole of iron (Fe) = 56 g (molar mass)
Since 56 g of iron = 1 mol.
Therefore, 112 g of iron= 1/ 56 ×112 mol = 2 mol.
Explanation:
PLEASE HELP PLS PLS PLS
Methane, CH4(g), and oxygen gas, O2(g) react to produce carbon dioxide, CO2(g), and water H2O(g). What volume of methane is required to react with oxygen to produce 32.5 L of carbon dioxide? *
a) 65.0 L
b) 48.8 L
c) 16.3 L
d) 32.5 L
Answer:
D)
Explanation:
CH4 + 2O2 = CO2 + 2H2O
1 (L CO2)= 32.5(L CO2)
1 (CH4) = 32.5 (L CH4)
As the girl leaves her room, she flips the switch to turn off the light. Turning off the light make
A :a closed circuit
B :a series circuit
C :a parallel circuit
D :an open circuit
Answer:
A.
Explanation:
Can you use carbon dioxide in the dark
Answer:
If you already have a solenoid, there is nothing wrong with running CO2 with the lights only. It will save CO2, and prevent excessive CO2 levels at night. Some think the CO2 should be up to max levels when the lights go on.
Explanation:
does the mercury not have fixed shape and volume at 20 degree
Answer:
Mercury doesn't have a fixed shape
In the following reaction, in which direction, left or right, will the equilibrium shift if the following changes are made?
2NO (g) + H2 (g) ⇌ N2O (g) + H2O (g) + 36 kJ (heat)
N2 O (g) is added
Equilibrium shifts (LEFT / RIGHT)
H2 (g) is added
Equilibrium shifts (LEFT / RIGHT)
Answer:
Shifts to the left.
Shifts to the right.
Explanation:
Based on Le Châtelier's principle, when a change occurs in a system in equilibrium, the system will try to counteract the change that was made.
In the equilibrium:
2NO (g) + H₂ (g) ⇌ N₂O (g) + H₂O (g) + 36 kJ (heat)
If N₂O is added, the equilibrium shifts to the left trying to decrease the concentration of N₂O added.
If H₂ is added, the equilibrium shifts to the right trying to decrease the concentration of H₂ added
What material would be safest to use as an insulator to cover electrical wires?
A:Rubber
B:Tin
C:Water
D:Aluminum
Answer: Rubber because it is NOT a conductor of electricity
Explanation:
Which contains more atoms; 1mol H2O2, 1mol C2H6, or 1mol CO?
Answer:
C2H6 has the greatest amount of atoms.
Explanation:
How do we designate recessive
genes?
A. They are male.
B. They are lower case letters.
C. They are female.
D. They are capital letters.
HELP PLEASE!
The more bonds an atom can make, the more likely it is to combie with other atoms in different ways.
Which element is most likely able to make the greatest variety of bonds?
a. nitrogen
b. hydrogen
c. oxygen
d.carbon
Answer: a. nitrogen
Explanation:
Nitrogen comprises of five valence electrons in its outermost shell which enables it to form triple, double and single bonds with other atoms. It can share three electrons with other nitrogen atom and form a covalent bond. Moreover, nitrogen can form multiple bonds with itself and with other elements due to its small size and high electronegativity. Nitrogen, carbon, fluorine, and oxygen are the elements with which nitrogen can form bonding.
What is the tertiary consumer in this food chain?
A hawk
B lettuce
C snail
D thrush
Answer:
the hawk
Explanation:
in order it would be: producer, primary, secondary, tertiary
Answer:
the hawk is the tertiary consumer
The image shows two spheres hung from a thin rope. The spheres do not affect each other.
What is most likely true about these spheres?
-Both spheres are neutral.
-Both spheres have a positive charge.
-Both spheres have a negative charge.
-One sphere has a positive charge, and the other has a negative charge.
Answer:
both spheres have a positive charge
The pH of a solution can be determined by using a
A. Filter paper
B. Potentiometer
C. Thermometer
D. pH paper
real answers plz not bots
Calculate the given mass in 0.5 mol. Of CH4
Answer:
8 grams
Explanation:
The molar mass of CH4 is about 16 grams per mol. So you get the answer by mutlitplying 0.5 by 16, (cancel out moles by placing 1 on the bottom of the fraction).
Answer:
8 (g)
Explanation:
[tex]m= n * M[/tex]
m= 0.5*(12+1*4)=0.5*16 =8 (g)
I need help answer whenever I have time
Answer:
Lithosphere: Volcanos..
Hydrosphere: Rain falls..
biosphere: Plants..
Explanation:
help? please and thank you! very much appreciated
Answer:
Option B is correct
Explanation:
The Formula of Nitrate is NO₃⁻
-TheUnknownScientist
Which reaction would cause an increase in entropy?
Answer:
The other guy is completely wrong.
The answer is B.SO2CI2 (g) > SO2 (g)+CI2(g)
Explanation:
A P E X
How many grams of carbon dioxide are produced from the combustion of 250.G of ethane, C3H8 in the reaction C3H8 +5O2 - 3CO2 +4H2O
Answer:
750 g of CO₂
Explanation:
The balanced equation for the reaction is given below:
C₃H₈ + 5O₂ —> 3CO₂ + 4H₂O
Next, we shall determine the mass of C₃H₈ that reacted and the mass of CO₂ produced from the balanced equation. This can be obtained as follow:
Molar mass of C₃H₈ = (12×3) + (8×1)
= 36 + 8 = 44 g/mol
Mass of C₃H₈ from the balanced equation = 1 × 44 = 44 g
Molar mass of CO₂ = 12 + (16×2)
= 12 + 32 = 44 g/mol
Mass of CO₂ = 3 × 44 = 132 g
SUMMARY:
From the balanced equation above,
44 g of C₃H₈ reacted to produce 132 g of CO₂.
Finally, we shall determine the mass of CO₂ produced by the reaction of 250 g of C₃H₈. This can be obtained as follow:
From the balanced equation above,
44 g of C₃H₈ reacted to produce 132 g of CO₂.
Therefore, 250 g of C₃H₈ will react to produce = (250 × 132)/44 = 750 g of CO₂.
Thus, 750 g of CO₂ were obtained from the reaction.
The number of grams of carbon dioxide should be 750 grams.
Calculation of the no of grams:Since
The balanced equation for the reaction is
C₃H₈ + 5O₂ —> 3CO₂ + 4H₂O
Now
Molar mass of C₃H₈ = (12×3) + (8×1)
= 36 + 8 = 44 g/mol
Hence, Mass of C₃H₈ from the balanced equation = 1 × 44 = 44 g
Now
Molar mass of CO₂ = 12 + (16×2)
= 12 + 32 = 44 g/mol
Hence, Mass of CO₂ = 3 × 44 = 132 g
Now the no of grams should be
= (250 × 132)/44
= 750 g of CO₂.
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What does pollution mainly come from
Answer:
Pollution comes from factories, careless humans, chemicals, non-biodegradable trash.
Explanation:
what element has 5 protons, 7 electrons, and 6 neutrons
Answer: Boron
Explanation: lol
Answer:
Boron. (What kind of name is that?????????????)
Explanation:
A sealed container is heated from 110K to 175K. The gas begins at a volume of 95L, what is the new volume of the gas upon heating?
Balance the following chemical equation:
C2H60+02 → CO2 + H2O
Answer: C2h6O + 3O2 → 2CO2 + 3H2O
Explanation:
Write word equation of sodium reacts with chlorine to get sodium chloride
Answer:
Na+ + Cl-=NaCl
Explanation:
Sodium have +ions while Chlorine have - ions the ions will cancel and it will equal to NaCl
please help me out with this question! don’t attach any files
Answer:
b
Explanation:
Convert 812.4 kPa into atm
Answer:
Explanation:
There are a series of unit used to measure PRESSURE. They include millimetre mercury (mmHg), atmospheric pressure (atm), kilopascal etc. These units of measurement are interconvertible i.e. can be changed from one unit to another.
Based on this question asking to convert
1 kilopascal = 0.00986923atm
Which is the conjugate acid of HSO4
Answer:
sulfuric acid
Explanation:
The conjugate acid of HSO4 -1 is H2 SO4. Adding one hydrogen ion to the hydrogen sulfate ion generates the conjugate acid. Its name is sulfuric acid.
Write a short paragraph about how gases are all around you. Provide at least 2 examples
Answer:fart and carbon are all around is
Explanation:
Convert 544 Calories to Joule
Answer:
2276.1 Joules
Explanation
One calorie is equal to 4.184 Joules. So, 544 calories will be equal to 544*4.184=2276.1 Joules