Reverse osmosis uses pressure and a semipermeable membrane to separate many dissolved substances from drinking water.
Category - Chemistry
Akshay Dinesh
How Baking Soda and Baking Powder Make Cakes Rise
Baking soda and baking powder make cakes rise by releasing carbon dioxide bubbles that expand in batter as heat sets the structure.
Why Stainless Steel Resists Rust But Is Not Rust-Proof
Stainless steel resists rust because chromium forms a protective oxide film, but salt, scratches, heat, and trapped moisture can still cause corrosion.
How Pool Chlorine and pH Work Together to Keep Water Safe
Pool chlorine works best only when pH, sunlight, swimmer waste, and stabilizer levels stay in balance.
How Radon Gets Into Homes From Rocks and Soil
Radon forms naturally underground, moves through soil, and can collect indoors. Testing is the only reliable way to know a home’s level.
Why the pH Scale Counts by Tens Instead of Ones
The pH scale is logarithmic, so each step means a tenfold change in acidity rather than a simple one-point difference.
Why Electrolytes Conduct Electricity in Water
Electrolytes conduct electricity in water because dissolved ions can move, carrying charge through the solution.
How Lead Gets Into Drinking Water From Old Plumbing
Lead can enter drinking water when old pipes, solder, or fixtures corrode. Water chemistry, time, and testing all matter.
Why Freezer Burn Changes Food Texture, Not Food Safety
Freezer burn happens when frozen food loses moisture. Learn why ice crystals form, texture changes, and safety is a separate question.
Why Noble Gases Usually Don’t React
Noble gases rarely react because their outer electron shells are already stable, but xenon proved the rule has limits.
How Fireworks Get Their Colors
Firework colors come from heated elements, excited electrons, and carefully balanced chemistry inside each bright burst.
Why Rare Earth Elements Make Modern Technology Work
Rare earth elements power strong magnets, screens, motors, and clean-energy technology, but their supply chains are surprisingly complex.
How Sunscreen SPF and Broad Spectrum Labels Really Work
SPF is not a timer. Learn what sunscreen labels really mean, including broad spectrum, UVA, UVB, and water resistance.
Why Swimming Pools Sometimes Smell Like Chlorine
That sharp pool smell usually comes from chloramines, not clean chlorine. Learn how pool chemistry changes when swimmers enter the water.
Chemical Bonding
Chemical bonding plays an important role in Chemistry – they help to form compounds with elements. Today, we will be discussing the different types of bonds and intermolecular forces of attraction. Covalent Bonding...
