Table of Contents
Are drain cleaners physical or chemical change?
Action of drain cleaners to unclog drains is a chemical change.
What chemical change occurs when you add drain cleaner?
How Chemicals Harm Your Pipes. Chemical drain cleaners are available in liquid, gel, foam, crystal, and powder but they all work in the same way. When you pour the drain cleaner down your sink or bathtub, the chemicals react with the clog and cause a chemical reaction that generates heat.
Is sodium hydroxide dissolving in water a chemical change?
When sodium hydroxide dissolves in water the bond between the sodium and hydroxide breaks leads to the formation of ions. Any reaction associated with the breaking of bonds and leads to new products is known as chemical change. Thus, sodium hydroxide dissolves in water as a chemical change.
Is mixing vinegar and milk a chemical change?
A chemical reaction takes place when milk is mixed with vinegar. Milk contains protein, out of which about 80% is known as casein and the rest is called whey protein. The reaction between milk and vinegar is also known as curdling and can be beneficially used to produce cheese.
What is the chemical equation for drain cleaner?
The acid ‘lends’ its hydrogen atoms to the water particles to evoke a chemical reaction. Caustic drain cleaners contain sodium hydroxide, commonly known as lye or caustic soda….Chemical formulas found in common drain cleaners.
| Chemical name | Chemical formula | |
|---|---|---|
| Oxidizers | Nitrate | NO3 |
Is dissolving a chemical change?
Dissolving a solid in liquid, such as table salt in water, is a physical change because only the state of the matter has changed. Physical changes can often be reversed. Allowing the water to evaporate will return the salt to a solid state. It has not combined with the water to cause a chemical reaction.
Is paper towel absorbing water a chemical change?
Paper towel absorbs water. Combining hydrogen and oxygen to make water is a physical change. Breaking up concrete is a physical change. Sand being washed out to sea from the beach is a chemical change.
What happens if you mix vinegar and milk?
Milk contains a protein called casein, which is negatively charged. Vinegar contains hydrogen ions, which are positively charged. The hydrogen ions and casein proteins attract each other and form the white, plastic-y lumps. The lumps are called curds and the process of forming the lumps is called curdling.
What happens when you mix vinegar and hot milk?
After you add the hot milk to the vinegar, small, white chunks—or curds—should become visible in the mixture. This is because adding an acid (such as vinegar) to the milk changes the latter’s pH (acidity) and makes the casein molecules unfold and reorganize into a long chain, thereby curdling the milk.