Answer:
cesium
In particular, cesium (Cs) can give up its valence electron more easily than can lithium (Li). In fact, for the alkali metals (the elements in Group 1), the ease of giving up an electron varies as follows: Cs > Rb > K > Na > Li with Cs the most likely, and Li the least likely, to lose an electron
Explanation:
The answer is B) heat will flow from the water to the copper until they both reach the same temperature
Answer: The molarity of solution is 0.231 M
Explanation:
Molarity of a solution is defined as the number of moles of solute dissolved per liter of the solution.

where,
n = moles of solute
= volume of solution in L
Molar mass of
= 
moles of
= 
Now put all the given values in the formula of molality, we get


Therefore, the molarity of solution is 0.231 M
Answer: 1and 4
Explanation: iron is an element not an alloy. An ionic lattice is not bonded covalently.
Maybe sodium? becasue its an element and I would like some points... sorryy:((((