Answer:
190.2 grams
Explanation:
each arrow points to the amount it weighs, just add it all up
Answer: 0.83mol/m3
Explanation:
Number of mole = 2.5 mmol = 0.0025mol
Recall
1L = 0.001m3
Therefore 3L = 3x0.001 = 0.003m3
0.003m3 contains 0.0025mol
Therefore, 1m3 will contain = 0.0025/0.003 = 0.83mol
The concentration in mol/m3 is 0.83mol/m3
the coefficients are equal is NOT a sign that a double displacement reaction has occurred
<u>Explanation:</u>
Usually during solutions of two ionic compounds are combined a precipitate (solid) is created. The mix may become cloudy, or may also separate, with the solids falling at the seat of the receptacle. Infrequently, the mix may bubble as a gas or water is produced.
A precipitation reaction is at two aqueous ionic compounds that make a unique ionic compound that is not soluble in water. The insoluble product compound is called the precipitate. The reaction, in this case, is not balanced, which are evaluated by summing coefficients.
Answer:
Option a → 111.9 g
Explanation:
The reaction is this:
2KClO₃ → 2KCl + 3O₂
2 moles of chlorate decompose to 2 moles of chloride and 3 moles of oxygen. Ratio is 2:2.
If I use 1.5 moles of chlorate I'll get the same moles of chloride by the decomposition.
Let's convert the moles to mass: 1.5 mol . 74.6 g / 1mol = 11.9 g
Where are the selections ????
