Se realizó un análisis para determinar la composición iónica de tres muestras de suelo. Los
resultados del análisis se presentan en la siguiente
tabla:
MUESTRA 1
MUESTRA 2
MUESTRA 3
Na
Co2
cr
3
PO4
NHA
kt
50,-
NO3
Cat2
K
Na
9. De acuerdo con la información anterior, es muy
probable que en la muestra 3 se encuentren las
sales:
a. CaCl2, Ca3(PO4)2 y Nazca
b. NaCl, CaCl2, Ca3(PO4)2 y Na3PO4
c. Nazca, CaCl2, Ca3(PO4)2 y Na3PO4
d. NaCl, Na(PO4)3 y Ca3(PO4)2
​

Maria wants to determine which type of disinfectant kills the most bacteria. which of the following is the best way for maria to determine this? a. ask ten different companies that make disinfectants which type is best. b. put the same amount and species of bacteria on ten identical plates, and add ten different kinds of disinfectant to each plate. c. interview ten different people to determine which type of disinfectant they prefer. d. put the same amount and species of bacteria on ten identical plates, and add a different disinfectant to each plate.

When you perform this reaction, what could remain at the end of the reaction? check all that apply. excess reactant aqueous copper chloride excess reactant aluminum oxygen product solid copper carbon dioxide product aqueous aluminum chloride water

What type of energy do chemical bonds have? what type of energy is it converted to during chemical reactions? question 15 options: chemical bonds have kinetic energy, which is converted to potential energy during chemical reactions. chemical bonds have electric energy, which is converted to potential energy during chemical reactions. chemical bonds have heat energy, which is converted to kinetic energy during chemical reactions. chemical bonds have potential energy, which is converted to heat energy during chemical reactions.