A silver cube with an edge length of 2.26 cm and a gold
cube with an edge length of 2.70 cm are both heated to
89.6 °C and placed in 115.0 mL of water at 20.0°C.
What is the final temperature of the water when thermal
equilibrium is reached?
Substance
gold
silver
water
Specific heat (J/g.°C)
0.1256
0.2386
4.184
Density (g/cm)
19.3
10.5
1.00

a non redox reaction occurs when there is not a transfer of electrons. for redox reactions, which are reduction-oxidation reactions, a change in the oxidation number occurs. elements that are reduced gain electrons, and elements that are oxidized lose electrons.

explanation:

trigonal pyramidal

tetrahedral

trigonal planar

bent

the density(ratio between mass and volume as m/v) decreases from top to bottom in periodic table group as the size increases and nuclear charge decreases. but in periods density increases from left to right as atom size decreases and nuclear charge increases.