What is the volume of oxygen occupied by 2 moles? 1mol O2 occupies 22.4L of volume at STP. Does mole change with volume? First question: If there is no net flow of solute into or out of the volume during change in volume of the solvent, the number of moles of solute remains the same. […]
Did Elizabeth 1 go to war?
Did Elizabeth 1 go to war? Queen Elizabeth I reigned for 44 years and 127 days. In her reign she faced three main wars. They were: The Desmond Rebellion, the English War against Spain and the Tyrone Rebellion. The English war against Spain lasted from 1585 – 1603 (18 years). What does Elizabeth mean when […]
How much does a jet engine cost?
What are the two things responsible for the change of seasons?
Can toothpaste really fix a cracked phone screen?
Can toothpaste really fix a cracked phone screen? Apparently, the theory is that the toothpaste being slightly abrasive will buff out some of the scratches and fill in any large cracks. The Team at We Solve All have been repairing phones for a very long time. However, we’ve never considered using toothpaste in any of […]
What are the 6 universal facial expressions seen and recognized in all cultures?
What are the 6 universal facial expressions seen and recognized in all cultures? Specifically, the universality hypothesis proposes that six basic internal human emotions (i.e., happy, surprise, fear, disgust, anger, and sad) are expressed using the same facial movements across all cultures (4⇓⇓–7), supporting universal recognition. What are the 7 micro expressions? Microexpressions express the […]
What food does in our body?
What food does in our body? When nutrient intake does not regularly meet the nutrient needs dictated by the cell activity, the metabolic processes slow down or even stop.” In other words, nutrients give our bodies instructions about how to function. In this sense, food can be seen as a source of “information” for the […]
What did they use for light in 1600s?
What did they use for light in 1600s? Medieval lighting came from large central fireplaces, candles, rush lights, flaming torches or lanterns. Candles, which had been around since Roman times, were made from animal fat, or beeswax if you were wealthy. How did people light candle chandeliers? The very wealthy used high grade beeswax candles, […]
Is making jewelry out of coins illegal?
Is making jewelry out of coins illegal? The answer is no: it is not illegal to make jewelry out of coins. It only becomes illegal if a person is attempting to fraudulently alter the coin. Consider the penny smashing machine at national parks and many other government and public attractions. U.S. Code is 18 U.S.C. […]
Should you put plastic behind insulation?
Should you put plastic behind insulation? Without a vapor barrier in place, condensation inside the walls could ruin the insulation and promote the growth of harmful mold and bacteria. Plastic, specifically 6-mil polyethylene plastic, is the most commonly used vapor barrier. Should you put plastic over insulation before drywall? Without poly beneath the drywall, water […]