Thuốc thử nào sau đây không nhận biết được KNO3 , K2SO4 đựng trong 2 lọ mất nhãn A Cu, HCl
B. Cr2O3, HCl
C. PeO, H2SO4 1 M
D. BaCl2

Predict the products butane (c4h10) + oxygen —>

What effect does a decrease in temperature have on the overall rate of a chemical reaction? a decrease in temperature decreases . the reaction rate will

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.