Answer:
Explanation:
Completely turn off equipment like televisions and stereos when you're not using them.
Choose energy-efficient appliances and light bulbs.
Save water.
Lower your shades or close your curtains on hot days, to keep the house cool and reduce the use of electric fans or air-conditioning.
Let clothes dry naturally.
Keep lids on pans when cooking to conserve energy.
Use rechargeable batteries.
Don’t use “throw away” products like paper plates and napkins, or plastic knives, forks and cups.
Send electronic greetings over email, instead of paper cards.
Answer:
2.48 mol/L.
Explanation:
- The molarity of the solution can be expressed as <em>the number of moles of solute in 1.0 liter of the solution, </em>(M = n / V).
- It is also can be calculated from the relation:
<em>M = (mass / molar mass) solute x (1000 / V of solution)</em>
The solute is toluene and the solvent is benzene.
mass of toluene (solute) = 57.1 g,
molar mass of toluene (solute) = 92.14 g/mol.
volume of the solution = 250 ml.
∴ M = (mass / molar mass) solute x (1000 / V of solution) = [(57.1 g / 92.14 g/mol) x (1000 / 250 ml)] = 2.48 mol/L.
I think that it’s A i have done a test on this before so I think it’s A
Answer:
Metallic bonding occurs when you have a metal in the solid or liquid state. The s and p valence electrons of metals are loosely held. They leave their “own” metal atoms. This forms a "sea" of electrons that surrounds the metal cations.
Explanation:
Answer:
Explanation:
The intermediates are the products of all the steps of the reaction pathway, with the exception of the last one. So the intermediates will be:
- N2O2 from the first step
- N2O from the second step
The list from reactant to final product:
<em>Note: the water is considered a by-product, given that is not the product of interest in this steps.</em>
