Respuesta:
1.50 moles
Explicación:
Paso 1: Escribir la ecuación química ajustada para la descomposición del carbonato de calcio
CaCO₃ ⇒ CaO + CO₂
Paso 2: Calcular los moles correspondientes a 150 g de CaCO₃
La masa molar de CaCO₃ es 100.09 g/mol.
150 g × 1 mol/100.09 g = 1.50 mol
Paso 3: Calcular los moles de CO₂ producidos a partir de 1.50 moles de CaCO₃
La relación molar de CaCO₃ a CO₂ es 1:1.
1.50 mol CaCO₃ × 1 mol CO₂/1 mol CaCO₃ = 1.50 mol CO₂
what factors contributed to the increase of in the human population?
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Question 7 of 10
What coefficient would the OZ have after balancing C3Hs + O2 → CO2 + H20?
O A 5
OB. 4
O c. 2
OD 3
SUBMIT
Answer:
A.5
Explanation:
what's the word equation for table salt?
Answer:
Have Nice Day
Explanation:
2NaCI is the answer
What is the ph of H2SO4?
Answer:
H2SO4 sulfuric acid 2.75
Explanation:
I hope it will help you
What the common uses for Rutherfordium???
Answer:
welcome
Explanation:
Uses of Rutherfordium
Because rutherfordium is made within the lab, there are not very many uses for this element commercially. On the other hand, rutherfordium has been used within the laboratory setting to conduct research. Most elements that are highly radioactive are used for nuclear power and medicinal purposes.
PLEASE HELP HELP ME. THIS IS DUE TODAY PLEASE
Answer:
C
Explanation:
cause i'm smart
Answer:
D
Explanation:
Because it says tree roots breaking rocks into smaller rocks.
Hope this helped!
What are the bronsted lowry acids in the following equilibrium reaction CN+H2O
Answer:
dbdbdbdjdbdjdb zbdjdjdjdirfjfjrjdudhdhdhd
HELPPP!!
what will happen to the temperatures of the water and the plastic over time?
How many grams of KCI can be dissolved in 63.5. g of water at 80
Answer:
35.8 g
Explanation:
Step 1: Given data
Mass of water: 63.5 g
Step 2: Calculate how many grams of KCl can be dissolved in 63.5. g of water at 80 °C
Solubility is the maximum amount of solute that can be dissolved in 100 g of solute at a specified temperature. The solubility of KCl at 80 °C is 56.3 g%g, that is, we can dissolve up to 56.3 g of KCl in 100 g of water.
63.5 g Water × 56.3 g KCl/100 g Water = 35.8 g KCl
¿
Que es la materia y qué es el volumen que ocupa la materia?
Todo en un estado sólido de materia tiene una forma y una longitud distintas. El volumen de un objeto es la cantidad de espacio que ocupa. Un sólido es un bloque de madera que conserva su forma y volumen cuando se coloca sobre una mesa.
Hope that helps!!!
¡Espero que ayude!
The higher the effective nuclear charge, the greater the -------- exerted by the nucleus of the added electron?
Answer:
Pull
Explanation:
The higher the effective nuclear charge, the more the nucleus will be gaining protons. This process makes the electrons to be drawn closer to the positive charge of the nucleus.
Thus, it leads to a greater pull exerted by the nucleus on the added electrons.
Question 5 How many grams of Hydrogen will be created from 5 moles of Aluminum? 2 Al + 3 H2SO4 – Al2(SO4)3 + 3H2
Answer:
Solution given:
2 Al + 3 H2SO4 – Al2(SO4)3 + 3H2
2mole +3mole. --- 1 mole + 3 mole
27×2g. +3×98g-------- 342,g. + 6g
we have
2 mole of Al gives. 6g of h2
5 moles of Al gives 6/2×5=15g of hydrogen
15 g is your answer
will mark brainliest
The amount of radioactive carbon-14 in a sample is measured using a Geiger counter, which records each disintegration of an atom. Living tissue disintegrates at a rate of about 13.5 atoms per minute per gram of carbon. In 1977 a charcoal fragment found at Stonehenge, England, recorded 8.2 disintegrations per minute per gram of carbon. Assuming that the half-life of carbon14 is 5730 years and that the charcoal was formed during the building of the site, estimate the date when Stonehenge was built
Answer:
4121 years
Explanation:
From;
0.693/t1/2 = 2.303/t log No/N
t1/2= half life of the carbon-14
No= count rate of the living tissue
N= count rate of the sample
t = age of the sample
0.693/5730 =2.303/t log (13.5/8.2)
1.21 * 10^-4 = 2.303/t * 0.2165
1.21 * 10^-4 = 0.4986/t
t = 0.4986/1.21 * 10^-4
t = 4121 years
How much energy is released if a sample loses 0.05 kg mass through
radioactive decay?
Answer:
4.5 × 1015 J
Explanation:
Energy was released through this form of mass.
The energy released if a sample loses 0.05 kg mass through
radioactive decay is 45 ×10¹⁴ J.
What is Energy?The ability to do work is called energy.
The Einstein's formula can be used to find the energy released. Energy is the product of mass and the velocity of light in a vacuum squared.
Given that the mass is 0.05 kg and speed of light in vacuum is 3×10⁸ m/s.
E = 0.05 × (3×10⁸)²
E = 45 ×10¹⁴ J
The energy is released if a sample loses 0.05 kg mass through
radioactive decay is 45 ×10¹⁴ J.
Learn more about Energy.
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Why does increasing the temperature of water increase the rate of chemical reaction in the graph
Answer:
Explanation:
Increasing the temperature increases reaction rates because of the disproportionately large increase in the number of high energy collisions.
Plz mark me brainliest.
A nuclide is defined as?
Answer:
Nuclide, , also called nuclear species, species of atom as characterized by the number of protons, the number of neutrons, and the energy state of the nucleus. ... The term nuclide is not synonymous with isotope, which is any member of a set of nuclides having the same atomic number but differing mass number.
Explanation:
Answer:
a distance isotope of an atom
Explanation:
What causes the release of energy in an exothermic reaction?
A catalyst
A catalyst
Bonds being formed
Bonds being formed
Bonds breaking
Bonds breaking
Electrons escaping the bond
Answer: The bonds that are made and broken in a reaction release energy when forming products that contain less total energy than the reactants.
Explanation: Elements form bonds with each other when the total energy of the resulting products is less than the starting energy. The term "energy" refers to the energy of the electrons that are being held in an atom by the nucleus. Keeping the positively charged nucleus happy means that the electrons are trying to get closer, but they repel each other as they get closer to the nucleus. This results in orbits, preferred areas around the nucleus where the electrons spend their day in a delicate balance with the nucleus and other electrons. These orbits offer housing for the electrons that involve discreet energies for the electrons. When elements react, the resulting bonding pattern often results in an overall reduction in total energy. The energy reduction results in heat, light, and/or sound. The release is termed "exothermic."
what is the ratio of calcium and oxygen?
Answer:
5:2
//answer was too short //
Answer:
The ratio by mass for calcium and oxygen in a calcium oxide is given by 5:2
hope it helps
A gas occupies 650.mL at STP. How many moles of gas are in the container?
Please help ((((
Explanation:
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Someone please help i have to get it done today
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is in it forsure
YOU WILL BE REPORTED IF THERES LINKS>>> BRAINLIEST 2.5 liters of gas is stored at a pressure of 100 atm, if the volume were increased to 4 liters, what would be the new pressure?
a. 250 atm
b. 1000 atm
c. 62.5 atm
d. 160 atm
Answer:
a. 250 atm
Explanation:
IT MIGHT BE WRONG PLS DOUBLE CHECK
Empirical Formulas are the? A) multiple of the ratio B) simplest ratio of elements C)the mass formulas D) the percent expected to make in a reaction
HELP WILL GIVE BRAINLIEST NO WEIRD ANSWERS PLSS
Answer:
Solid
Explanation:
The reason is because the liquid aspirin has a plastic cover with a liquid inside and it doesn't take long for out stomach acid to dissolve the cover unlike the Solid aspirin where is slowly dissolves.
What happens when heat is removed from water?
The water particles move farther apart.
The water changes from a liquid to a gas.
The temperature of the water increases.
The kinetic energy of the water particles decreases.
Answer:
D). The kinetic energy of the water particles decreases.
Explanation:
Your welcome!
ANSWER
D
Explanation: Got it correct on edge 2022
According to the Gibbs free energy equation, G= H-T S, when could a high temperature make a reaction that was nonspontaneous at low temperature spontaneous
Answer:
For the reaction to be spontaneous at high temperatures, ΔG < 0 and, ΔH > 0 and ΔS > 0.
Explanation:
According to the Gibbs free energy equation, for the reaction to be spontaneous at high temperatures when it was not spontaneous at low temperatures, the free energy change ΔG < 0.
Since ΔG = ΔH - TΔS where ΔH = enthalpy change and ΔS = entropy change,
For ΔG < 0 at high temperatures, ΔH > 0 and ΔS > 0. That is both ΔH and ΔS are positive at high temperatures.
So, for the reaction to be spontaneous at high temperatures, ΔG < 0, and ΔH > 0 and ΔS > 0.
When ΔH and ΔS are both positive
Um help plzzzzzzzzzzz
if you answer these without sending a link ur sexc
Answer:
67.3 kPa
Explanation:
We're focusing on pressure and volume of gases, so we can use our ideal gas law formula PV=nRT. Everything is constant except pressure and volume, but the values change when moving from city 1 to city 2, so we can say PV city 1= PV city 2.
We can simplify our formula to be P1V1=P2V2. This is specifically Boyle's Law, where if pressure increases (from city 1 to city 2) then volume decreases, thus we can say pressure and volume have an inverse/opposite relationship.
This is an important formula to understand, you can easily memorize it by referring to PV=nRT.
Let's plug in the values we know.
P1V1=P2V2
(101)(6) = (9)(V2)
Now let's solve for V2.
[tex]\frac{101 x 6}{9}[/tex] = V2
[tex]\frac{606}{9}[/tex] = V2
67.3 kPa = V2
You are allowed to change the number of molecules of each substance by adding coefficients in front of the formulas
Answer:
Yeah, it allowed according to the basics of chemistry.