The problem is that pennies minted since 1982 are mostly zinc and carry only a light coating of copper, which can be eaten away by stomach acid. The zinc, in turn, can cause lots of problems that include bleeding ulcers … Continue reading →

So for electron flow, the positive terminal is lower potential energy. Conversely if they move from the positive terminal to the negative terminal, they gain potential energy. So the negative terminal would then be considered at higher potential energy. Why … Continue reading →

Car or automotive battery acid is 30-50% sulfuric acid (H2SO4) in water. How much sulfuric acid is in a car battery? A car battery usually has about 1kg of sulfuric acid. This acid is used to generate an electrical current … Continue reading →

When concentrated sulfuric acid contacts the skin, the resulting chemical reaction releases heat that brings sustained thermal damage to the skin[4]. The sustained heat dehydrates local tissues and cells, and the consequential skin coagulation and necrosis may produce eschars and … Continue reading →

The most common acids used to clean concrete and bricks are hydrochloric acid (muriatic) or phosphoric acid. For many years it has been the standard cleaning method to prepare concrete for coatings installations, to remove stains of any type from … Continue reading →

Muriatic acid may not hurt PVC or other drain lines, but it is much too aggressive for monthly maintenance and it is potentially dangerous to use if not careful. It can cause serious burns to you and the fumes are … Continue reading →

Hydrogen Peroxide + Vinegar Experts say this method is safe — but don’t mix the two products in the same container. Combining them creates peracetic acid, which is potentially toxic and can irritate the skin, eyes, and respiratory system. What … Continue reading →

Muriatic acid is a form of hydrochloric acid, which has a pH of about 1 to 2. The only differences between hydrochloric acid and muriatic acid are purity—muriatic acid is diluted to somewhere between 14.5 and 29 percent, and often … Continue reading →

A few things could be what causes black stains in the toilet bowl, with the main culprits being hard water, bacteria, mold, and mildew. Hard water. The mineral deposits left from hard water use can collect in places with a … Continue reading →

Strength to weight ratio wise, Humans are actually stronger than dogs. In fact, humans are stronger than most animals as a strength to weight ratio. Horses, other great apes, and bears are some of the few animals physically stronger than … Continue reading →

Exide Industries boasts net cash, so it’s fair to say it does not have a heavy debt load, even if it does have very significant liabilities, in total. In addition to that, we’re happy to report that Exide Industries has … Continue reading →

Why does Zn have a +2 charge? Zinc has an electron configuration of [Ar] 3d10 4s2. This small amount of electrons means it is more likely to lose the 2 electrons rather than taking on any in a reaction. Losing … Continue reading →

You cannot do this. The lithium battery requires a different voltage and a different charger. Can I use a NiMH charger for lithium batteries? You can’t. NiMH cells are about 1.2v nominal, best trickle charged. Lithium Ion require a complex … Continue reading →

When this happens, the safest way to perform this is with a battery jump box. These boxes enable the jumpstart to occur with no risk of damage to the starter or alternator. How do you ruin an alternator? Originally Answered: … Continue reading →

The new Solid State batteries will be lighter than conventional lithium-ion batteries, and can recover 90 percent of a charge in just 10 minutes. How fast will a solid-state battery charge? Quantumscape achieves solid-state batteries that can fast charge in … Continue reading →