Answer:
It has 4 significant figures
Explanation:
Notice the use of scientific notation to indicate that there are two zeros which should be significant. If this number were to be written without scientific notation (3,200,000,000) the significance of those two zeros would be lost and you would - wrongly - say that there were only two significant figures.
Answer:
It's D.
Explanation:
That would be choice D which might be called a double decomposition reaction - an exchange of ions where no electrons are lost or gained. The silver chloride appears as a white precipitate.
Answer:
This is an acid-base reaction (neutralization): H 2SO 4 is an acid, Ca(OH) 2 is a base.
...
1 H2SO4 + Ca(OH)2 → H2O + CaSO4
2 H2SO4 + Ca(OH)2 → CaSO4 + HOH
3 H2SO4 + Ca(OH)2 → H2O + CaOH2SO4
4 H2SO4 + Ca(OH)2 → H2O + Ca(HSO4)2
5 H2SO4 + Ca(OH)2 → H2O + (CaOH)2SO4
Explanation:
B)A molecule of glucose is produced in a chloroplast.
The answer is concentrated