Tears have the same basic chemical components as sweat.
Yes, they do.
No. The components of the mixture remain the same. They do not react chemically with one another.
No. The components of the mixture remain the same. They do not react chemically with one another.
It is a physical change. Water from the sweat becomes water vapour when it eveporates but these still comprise water molecules. You may be left with the dried salts which were present in the sweat (eg urea) but they will also be the same chemical compounds which were present i the sweat.
No, urine is used to excrete nitrogen and therefore contains urea (or uric acid for birds) as a major component. Sweat doesn't serve this purpose and contains no urea.
Lava is made of the same chemical components that are found in many rock types (mostly silica and various metal oxides), only it is in a superheated, molten form. When the lava cools, the chemical components form the appropriate rock.
The elements of a compound are the simplest components that it can be broken down into by chemical means. The atoms of an element have the same number of protons and electrons and have the same behaviors.
Sweat is what causes body odor. Sweat has the same chemical makeup as your urine at that time. So it depends on what you have ingested. Body odor is actually the drying/fermentation of your sweat. Which is why it can smell so strong. It's been concentrated.
It is a true statement that a technological development of a chemical product often lags behind basic research on the same substance. The main purpose for basic research is to gather knowledge.
Why do we sweat??? Same reasons as dogs to keep cool.
A compound implies some chemical bonding at the atomic or molecular level. A mixture suggests that although the components may be in intimate contact, no chemical bonding has taken place.
Although the primary constituent of milk -- that is, water -- is the same as the primary constituent of sweat, there is no sweat in milk.