Answer:
It's either Substance 1 or Subatance 4 !
Low life?- i’m pretty sure
Hello!
The concentration of the reactants decreases and the concentration of products increases during the course of a forward chemical reaction.
A chemical reaction is a thermodynamical process in which two or more substances (called reagents) undergo transformation by the breaking and rearrangement of their chemical bonds to form another substance(s), called products. In a forward chemical reaction, the reagents are being consumed, so their concentration will decrease, increasing the concentration of products as they are the result of the reaction.
The study of how concentration changes with time in a chemical reaction is called reaction kinetics.
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Answer:
CaF2 will not precipitate
Explanation:
Given
Volume of Ca(NO3)2 ml
Molar concentration of Ca(NO3)2
Volume of NaF ml
Molar concentration of NaF
Ksp for CaF2
CaF2 will precipitate if Q for the reaction is greater than ksp of CAF2
Moles of calcium ion
Moles of F- ion
Q is lesser than Ksp value of CaF2. Hence it will not precipitate
The nucleus, that dense central core of the atom, contains both protons and neutrons. Electrons are outside the nucleus in energy levels. Protons have a positive charge,neutrons have no charge, and electrons have a negative charge. A neutral atom contains equal numbers of protons and electrons.