what are the composition of magnesite brick ?
what are the composition of magnesite brick ?
Homework Answers
The composition of magnesium brick
MgO＞87%,
CaO ＞3.5%,
SiO3 < 5%
The high magnesia content helps to resist high temperature
These are used as refractory materials
Consider the following balanced thermochemical equation for the decomposition of the mineral magnesite: MgCO3(s) -...
Consider the following balanced thermochemical equation for the decomposition of the mineral magnesite: MgCO3(s) - MgO(s) + CO2(g) AHrxn - 117.3 kJ (a) Is heat absorbed or released in the reaction? released o absorbed (b) What is AHfor the reverse reaction? (@) What is AH when 4.20 mol of CO, reacts with excess MgO? kJ (d) What is AH when 30.0 g of CO, reacts with excess MgO?
Consider the following balanced thermochemical equation for the decomposition of the mineral magnesite: MgCO3() – MgO(s)...
Consider the following balanced thermochemical equation for the decomposition of the mineral magnesite: MgCO3() – MgO(s) + CO2(g) AH = 117.3 kJ (a) Is heat absorbed or released in the reaction? released absorbed (b) What is AHrn for the reverse reaction? (c) What is AH when 3.10 mol of CO2 reacts with ercess Mgo? kJ (d) What is AH when 33.5 g of CO, reacts with excess 190? kJ
Explore momentum with the cart and the brick simulation: https://www.physicsclassroom.com/Physics-Interactives/Momentum-and-Collisions/The-Cart-and-the-Brick/The-Cart-and-the-Brick-Interactive Maximize the simulation and explore the...
Explore momentum with the cart and the brick simulation:
https://www.physicsclassroom.com/Physics-Interactives/Momentum-and-Collisions/The-Cart-and-the-Brick/The-Cart-and-the-Brick-Interactive
Maximize the simulation and explore the sample
analysis.
After you feel comfortable with the information and analysis
begin the simulation by clicking the Begin
Activity button at the bottom.
Choose the lower righ Experimental Condition from the setups
(see first figure below):
Analyze the pre-collision data. Consider the measurements good
to two significant digits.
(a) What is the pre-collision momentum of the cart
(b) What is the pre-collision momentum of...
Consider the following balanced thermochemical equation for the decomposition of the mineral magnesite: MgCO3 (s) LaTeX:...
Consider the following balanced thermochemical equation for the decomposition of the mineral magnesite: MgCO3 (s) LaTeX: \longrightarrow ⟶ MgO (s) + CO2 (g) LaTeX: \Delta Δ Hrxn = 117.3 kJ If MgO is produced this way, how many grams of MgO can form when 1.000 x 103 kJ of heat is transferred? Show your work.
what is a composition of functions? what is the difference between the composition and the product...
what is a composition of functions? what is the difference between the composition and the product of two funtions?
A brick is dropped (zero initial speed) from the roof of a building. The brick strikes...
A brick is dropped (zero initial speed) from the roof of a building. The brick strikes the ground in 2.10 s. You may ignore air resistance, so the brick is in free fall. a) How tall, in meters, is the building? (b) What is the magnitude of the brick's velocity just before it reaches the ground? m/s (e) Sketch ay t, vy t, and yt graphs for the motion of the brick. (Do this on paper, Your instructor may ask...
A 1.00kg brick is sliding along on a rough horizontal surface at 15.0m/s .If the brick...
A 1.00kg brick is sliding along on a rough horizontal surface at 15.0m/s .If the brick stops in 4.60s , how much mechanical energy is lost?What happens to this energy?
5. Natalie and Angela are doing The Cart and the Brick Lab. They drop a brick...
5. Natalie and Angela are doing The Cart and the Brick Lab. They drop a brick on a 2.6 kg cart moving at 28.2 cm/s. After the collision, the dropped brick and cart are moving together with a velocity of 15.7 cm/s. Determine the mass of the dropped brick.
You kick a brick sitting on the sidewalk (ouch!) and the brick slides 2.00 m before...
You kick a brick sitting on the sidewalk (ouch!) and the brick slides 2.00 m before coming to a stop. The kinetic friction coefficient between brick and sidewalk is μk = 0.64. The initial speed of the brick the brick (immediately after it separates from your foot) is... ... 5.0 m/s ... impossible to calculate because the mass of the brick is not known. ... 12.5 m/s ... 25 m/s
As a hedge against inflation you decide to buy a brick of osmium. A typical brick...
As a hedge against inflation you decide to buy a brick of osmium. A typical brick is 2.36 in. high, 4.33 in. wide, and 9.06 in. long. One inch is equal to 2.54 cm. If the density of osmium is 22.48 g/cm3, what would be the mass of one brick? (a) 3.41 x 104 kg (b) 67.5 kg (c) 6.75 x 10-2 kg (d) 3.41 x 10-4 g (e) 34.1 kg
Consider the following balanced thermochemical equation for the decomposition of the mineral magnesite: MgCO3(s) - MgO(s) + CO2(g) AHrxn - 117.3 kJ (a) Is heat absorbed or released in the reaction? released o absorbed (b) What is AHfor the reverse reaction? (@) What is AH when 4.20 mol of CO, reacts with excess MgO? kJ (d) What is AH when 30.0 g of CO, reacts with excess MgO?
Consider the following balanced thermochemical equation for the decomposition of the mineral magnesite: MgCO3() – MgO(s) + CO2(g) AH = 117.3 kJ (a) Is heat absorbed or released in the reaction? released absorbed (b) What is AHrn for the reverse reaction? (c) What is AH when 3.10 mol of CO2 reacts with ercess Mgo? kJ (d) What is AH when 33.5 g of CO, reacts with excess 190? kJ
Explore momentum with the cart and the brick simulation:
https://www.physicsclassroom.com/Physics-Interactives/Momentum-and-Collisions/The-Cart-and-the-Brick/The-Cart-and-the-Brick-Interactive
Maximize the simulation and explore the sample
analysis.
After you feel comfortable with the information and analysis
begin the simulation by clicking the Begin
Activity button at the bottom.
Choose the lower righ Experimental Condition from the setups
(see first figure below):
Analyze the pre-collision data. Consider the measurements good
to two significant digits.
(a) What is the pre-collision momentum of the cart
(b) What is the pre-collision momentum of...
A brick is dropped (zero initial speed) from the roof of a building. The brick strikes the ground in 2.10 s. You may ignore air resistance, so the brick is in free fall. a) How tall, in meters, is the building? (b) What is the magnitude of the brick's velocity just before it reaches the ground? m/s (e) Sketch ay t, vy t, and yt graphs for the motion of the brick. (Do this on paper, Your instructor may ask...
5. Natalie and Angela are doing The Cart and the Brick Lab. They drop a brick on a 2.6 kg cart moving at 28.2 cm/s. After the collision, the dropped brick and cart are moving together with a velocity of 15.7 cm/s. Determine the mass of the dropped brick.
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