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A sunscreen lotion is indeed mostly only a moisterizer with certain properties.
Some are easy to wash off.(general use)
Others are water resistant to a certain degree. (for swimming/bathing)
The trick is to add pigments to the lotion that reflect or absorbs the UV light.
For this, the industry today often uses Titanium Oxide.
Titanium Oxide does not poison the body and is not absorbed as such through skin.
Various levels of sunprotection from lotion have more or less TitaniumOxide in them.
This material is allso a reason for the sunscreenlotion to be more costly than only a moisterizer alone. Titanium is expencive.
I am sure other materials can be used instead, but maybe not with the same good and well documented effect.
Regards.
What else can I help you with?
Is heat energy added a liquid causes it to evaporate is it a chemical reaction?
No. It's just a change of state.
Does food coloring cause a chemical reaction?
No, food coloring does not cause a chemical reaction. Food coloring is a substance added to food to change or enhance its color, but it does not undergo a chemical change itself. It simply dissolves in the food or liquid it is added to.
What statement is best supported by this evidence when chemical x is added to a certain liquid the chemical breaks into substances y and z it is not possible to break substances y and z into simpler?
x is a compound that was broken into y and z through a chemical reaction with the liquid. y and z are both elements.
What occurs when energy is added or taken away?
When energy is added,solid will melt into liquid or liquid will change into gas. (When energy is added it gains heat).When energy is removed, the liquid will turn into solid or the gas will turn into liquid. (When energy is removed the heat will lose).
What does insolute mean?
It means a chemical/ substance, that cannot be dissolved in a liquid. An example would be starch and water, as starch is insolute when added to water.
What is a dispersal agent?
A dispersion agent is a chemical substance that is added to a liquid to prevent it from hardening. The agent will cause distribution of ingredients in the entire product.
Is baking cake from a mix physical?
No, it is chemical change. Heat is added therefore changing the make-up from a liquid state to a solid state.
What happens when red oil was added to a nonpolar liquid?
Oil is a nonpolar liquid. IfÊred oilÊis added to another nonpolar liquidÊthe two liquidsÊwill mix together. The rules for aqueous solutions and other types of chemical reactions can be found at iun.edu.
Jorge added a solid material to a clear colorless liquidthe mixture began to bubblee xplain why jorge thought a chemical reaction occurreed?
if a person added a solid material to a colorless liquid and the mixture started to bubble if the person wrote in his notebook a chemical reaction occured explain why that person thought it was a chemical reaction?
When chemical x is added to a certain liquid the chemical breaks into substances y and z y and z cant be broken down any further does that mean x is an element?
no, it proves that x is a compound.
What happens if energy is added to a liquid at 20 Celsius?
If energy is added to a liquid at 20 Celsius, the temperature of the liquid will increase. This can lead to a phase change if the added energy is sufficient to raise the liquid's temperature above its boiling point, causing it to vaporize. If the added energy is not enough for a phase change, the increased temperature can affect the liquid's properties such as viscosity.
Which two thing cam happen when heat is added to a liquid?
which two things can happen when heat is added to a liquid?
