<u>Answer:</u>
Glow sticks give off light but not heat because energy is released, the glow stick reaction is an example of exergonic (energy-releasing) reaction. However, it is not an exothermic (heat-releasing) reaction because heat isn't released... endothermic reactions absorb heat.
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<u>Explanation:</u>
*Hope this helps*
The mass of NH₃ : = 17.629 g
Further explanation
A reaction coefficient is a number in the chemical formula of a substance involved in the reaction equation. The reaction coefficient is useful for equalizing reagents and products.
Given
125 g NCl₃
Required
The mass of NH₃
Solution
mol NCl₃(molar mass : : 120.5 g/mol)
= 125 g : 120.5 g/mol
= 1.037
From the equation, mol ratio NCl₃ : NH₃ = 1 : 1, so mol NH₃ = 1.037
Mass NH₃(molar mass : 17 g/mol) :
= 1.037 x 17
= 17.629 g
Answer:
Explanation:
1 mole of iron is 56 grams (rounded)
x mole of iron is 38 grams (given
1/x = 56/38 Cross multiply
56x = 38*1 Divide by 56
x = 38/56
x = 0.679 mols of iron
1 mol of anything = 6.02 * 10^23
0.678 mols of iron = x
1/0.679 = 6.02 *10^23 /x
x = 0.679 * 6.02*10^23
x = 4.09 * 10 ^23
So there are 4.09 * 10^23 atoms of Fe in 38 grams of iron
Answer:
Bats eat hundreds of mosquitoes and other annoying insects at night.
Answer:
Clay
Explanation:
Since Clay has a very small particle size it compacts or has a high surface area which slows the path of water, holding it for longer periods compared to other soil components.