Let's see the balanced equation
![\\ \rm\Rrightarrow 2Ca+O_2\longrightarrow 2CaO](https://tex.z-dn.net/?f=%5C%5C%20%5Crm%5CRrightarrow%202Ca%2BO_2%5Clongrightarrow%202CaO)
Hence
As moles are equal given
- Ca should be the limiting reagent
- 2mol Ca produces 2 mol CaO
- 3mol Ca produces 3mol CaO
Answer:
Summary. Water molecules are polar, so they form hydrogen bonds. This gives water unique properties, such as a relatively high boiling point, high specific heat, cohesion, adhesion and density.
Explanation:
The answer is; C
It begins with electrical energy when the microwave is connected to a power outlet. The electrical energy changes to electromagnetic energy as the microwave releases microwave radiation that hits the food in the microwave. When the microwave’s electromagnetic radiation hits the food, the water molecules in the food get excited and the food heats up turning to thermal energy.
Answer:
8.3 g
Explanation:
Step 1: Write the balanced equation
H₃PO₄ + 3 NH₃ ⇒ (NH₄)₃PO₄
Step 2: Calculate the moles corresponding to 5.5 g of H₃PO₄
The molar mass of H₃PO₄ is 97.99 g/mol.
5.5 g × 1 mol/97.99 g = 0.056 mol
Step 3: Calculate the moles of (NH₄)₃PO₄ produced
The molar ratio of H₃PO₄ to (NH₄)₃PO₄is 1:1. The moles of (NH₄)₃PO₄ produced are 1/1 × 0.056 mol = 0.056 mol.
Step 4: Calculate the mass corresponding to 0.056 moles of (NH₄)₃PO₄
The molar mass of (NH₄)₃PO₄ is 149.09 g/mol.
0.056 mol × 149.09 g/mol = 8.3 g