The mild, abrasive action in the toothpaste gently scrubs the stain away. (Before beginning, test the toothpaste on an inconspicuous part of the wood.) Coke — it’s not just for quenching thirst, the acid in the popular drink can also … Continue reading →

The diet colas are not necessarily more acidic; regular Pepsi Cola has the lowest pH (pH 2.53), while Diet Selection Cola is the highest pH (pH 3.40). Which soda is the most acidic? RC ColaAGD spokesman Kenton Ross said that … Continue reading →

Add vinegar to your list of what not to mix with bleach. Both are effective cleaners individually, but if you mix them together, the reaction creates chlorine gas, which is highly toxic or even fatal. In small amounts, chlorine gas … Continue reading →

Hydrogen peroxide is a widely used antimicrobial chemical. It is used in both liquid and gas form for preservative, disinfection and sterilization applications. Its advantages include its potent and broad spectrum antimicrobial activity, flexibility in use, and safety profile in … Continue reading →

While hydrogen peroxide can be used to clean so many things, it’s best to only mix it with water. Combining the solution with ammonia, chlorine bleach, or vinegar in a closed container can cause unsafe gasses to form. What is … Continue reading →

a) When potassium permanganate crystals are placed in hot water, the solution turns to purple in color because of a process called diffusion. Diffusion is the movement of molecules or atoms from high concentrated region to low concentrated region. What … Continue reading →

While the 2019 LCOE benchmark for lithium-ion battery storage hit US$187 per megawatt-hour (MWh) already threatening coal and gas and representing a fall of 76% since 2012, by the first quarter of this year, the figure had dropped even further … Continue reading →

BloombergNEF: Average battery pack prices to drop below US$100/kWh by 2024 despite near-term spikes. Supply chain shocks are causing short-term rises in the price of lithium-ion battery packs, but overall the price trend is downward and by 2024 average prices … Continue reading →

The cells are grouped in packs resembling big suitcases. The priciest component in each battery cell is the cathode, one of the two electrodes that store and release electricity. The materials needed in cathodes to pack in more energy are … Continue reading →

Here’s the equation: (total number of watts) x (total number of hours) = watt-hours. So, if you have a 60W bulb and you’re trying to calculate how many watts your bulb uses in 24 hours, your equation would read 60 … Continue reading →

Advantage: Each cell has a different shape that allows it to perform a specific task in order to contribute towards the overall function of the organism. Disadvantage: Multicellular organisms require more energy to feed to multiple cells. What are the … Continue reading →

The one thing that is agreed upon is that in the late 1800s, when people started painting pencils, the finest graphite in the world was coming from China. And so yellow became a color that was associated with a pencil … Continue reading →

Solid ionic compounds do not conduct electricity because the ions are held firmly in place. The ions cannot move to conduct the electric current . But when an ionic compound melts, the charged ions are free to move. Therefore, molten … Continue reading →

Batteries left inside LED flashlights get drained even when they are powered off and not in use because of what is known as “parasitic drain”. Most LED Lights need a constant power supply in order to record when the switch … Continue reading →

C-4 is a plastic explosive substance similar in structure to Semtex that is used by both military and terrorist organizations. It has a reputation for producing a buzz as well as a bang. What is the name for C-4? C-4 … Continue reading →