If you do not perceive a color change, or the emission of light or heat, it is still possible a chemical reaction has taken place.
A chemical change involves a change in the composition of a substance. It leads to the rearrangement of atoms and formation of a new substance.
Some cues may help us to know when a chemical change has taken place such as;
- Change in color
- Formation of a solid
- Evolution of heat
- Evolution of a gas
It is possible for a chemical change to occur without noticing these cues. For instance, two colorless solutions may react with each other and the product of the reaction remains colorless.
In this case, there is no physical cue signifying that a chemical change has taken place even though it actually happened.
Learn more: brainly.com/question/6284546
Answer:
It is Tube 3
Explanation:
This is because the beaker has a lower water potential then the others. Since the dialysis tube holds 100% water and the beaker holds 40% of water, water will move out of the bag to the beaker. Because of the low water potential on the beaker
Answer
The skeletal system works as a support structure for your body. It gives the body its shape, allows movement, makes blood cells, provides protection for organs and stores minerals. The skeletal system is also called the musculoskeletal system.
Explanation:
Pleomorphism (microbiology): the ability of some bacteria to alter their shape or size in response to environmental conditions. Dedifferentiated liposarcoma is the least common subtype of liposarcoma and usually arises from a well-differentiated liposarcoma (WDLPS). Progression occurs. in 17 % of patients when WDLPS is located in the retroperitoneum and 6% of cases when WDLPS is located in the extremities.
