taste or touch
true
A compound could be caustic and burn your mouth and tongue.
Changing subscripts in chemical formulas should never be done to balance a chemical equation because it changes the identity of the compounds involved. Instead, coefficients should be adjusted to balance the equation without altering the chemical formulas.
You should never inhale, ingest, or touch a chemical without proper protection and training. It is also important to never mix chemicals unless you are certain of the reaction and have the appropriate safety measures in place.
Prion
A change is chemical if the substance's chemical composition is altered, resulting in the formation of new substances with different properties. Look for indicators such as color change, gas production, temperature change, or formation of a precipitate to help identify a chemical change.
As a simple rule never taste chemicals unless you are absolutely certain you know what they and that they are harmless.
You can identify each chemical reaction by naming it,
This is an invalid question because vampires are not real. You will never see a 'vampire' victim.
-OH
You think probable to optical spectroscopy.
To identify the material in an object without altering it, you should use physical properties. Physical properties, such as color, density, melting point, and conductivity, can be observed and measured without changing the substance's chemical structure. In contrast, chemical properties involve reactions that would alter the material, making them unsuitable for non-destructive identification.