They have microscopes to see small objects such as atoms and molecules
Answer:
The drawings are in the figure attached below.
Explanation:
"Constitutional isomers" is a term used in chemistry to refer to chemical compounds that have the same constitution and molecular formula distributed in a different structure. That is, the compound has the same atoms, but when built in a three-dimensional image, these atoms occupy different places within the same structure.
Answer:
B. the same as the concentration gradient for Na+
Explanation:
The net electrochemical gradient movement of potassium is to move into the cytoplasm of the cell, and the net electrochemical gradient of sodium is to move into the extracellular fluid. There is an overall negative net charge inside the cell than compared to the outside because of this
Answer:
Pb(NO₃)₂ ₍aq₎ + 2 KI ₍aq₎ ------------> PbI₂ ₍s₎ + 2 KNO₃ ₍aq₎
Explanation:
Chemical Equation:
lead(II) nitrate: Pb(NO₃)₂
potassium iodide: KI
lead(II) iodide: PbI₂
Potassium nitrate: KNO₃
Pb(NO₃)₂ ₍aq₎ + KI ₍aq₎ ------------> PbI₂ ₍s₎ + KNO₃ ₍aq₎
Balancing the equation:
For balancing the equation all atoms of the elements on both sides of equation i.e reactants and products are equal.
So balancing the above equation we get:
Pb(NO₃)₂ ₍aq₎ + 2 KI ₍aq₎ ------------> PbI₂ ₍s₎ + 2 KNO₃ ₍aq₎
