Answer:
true
Explanation:
because there is love in the universe and we converse in each others mind soul brain time stone
Answer:
- Oxiding agent - sulphuric acid (3H2SO4)
- Reducing agent - aluminium (Al)
Explanation:
Oxiding agent act as "Reduction" which loses oxygen in the product side.
Reducing agent act as "Oxidation" which gains oxygen.
The heat released by reaction : C) -8870 J
<h3>Further explanation</h3>
Given
1.008 g of hydrogen
500.00 g water
The temperature rises 25.00 °C to 29.24 °C
Required
energy required
Solution
Q absorbed by water :
Q = m.c.Δt
Q = 500 g x 4.18 J/g C x (29.24-25)
Q = 8870.08 J
The reaction to produce HCl is an exothermic reaction (releasing heat), so that Q is negative
Q water = -Q HCl = -8870.08 J
Answer:
the mixture or solution is called homogeneous mixture
2moles
1.20moles
0.5mole
Explanation:
Given parameters:
Mass of He = 8g
Mass of Zn = 78g 
Volume of oxygen gas= 11.2L
Unknown:
Number of moles of He, Zn = ?
Number of moles of oxygen gas = ?
Solution;
Number of moles of substances is given as :
Number of moles = 
molar mass of He = 4g/mol
molar mass of Zn = 65.4g/mol
Number of moles of He = 
= 2moles
Number of moles of Zn = 
1.20moles
For gases at STP;
Number of moles = 
Number of moles = 
= 0.5mole
learn more:
Number of moles brainly.com/question/1841136
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