Answer:
B. K,Ca, and Sc
Explanation:
PLZ mark me as a BRAINLIEST
2K + 2H2O -----> 2KOH + H2
The question is telling you what are the reactants and products .
In order to float the demsoty of the floating obkect must be lower then the liquid it is in. the only one that works for is Citric acid
Answer:
Possible lowest volume = 0.19 cm
Possible highest volume = 0.21 cm
Explanation:
Given Data
uncertainty = 0.01 cm
total volume = 0.20 cm
Possible lowest volume = ?
Possible highest volume = ?
Solution:
Possible lowest volume = total volume - uncertainty
Possible lowest volume = 0.20 cm - 0.01 cm
Possible lowest volume = 0.19 cm
Possible highest volume = total volume + uncertainty
Possible highest volume = 0.20 cm - 0.01 cm
Possible highest volume = 0.21 cm
Answer: Mendeleev improve newlands periodic table because he swapped the order of some elements if that fitted their properties better.
Explanation: I hope this helps!... :)
