Heya!!!
Answer to your question:
A catalyst is ______
B. Not used up in a reaction.
Catalyst do not change the amount of reactants or products or itself get used but it just change the rate of reaction.
Hope it helps *_*
Copper and gold is the answer I believe
A crystalline solid is brittle, has a high melting point, and has low electrical conductivity is ionic bonds between metals and nonmetals.
On the basis of structure, ca F2 is the most brittle
hope this helps
1km=100,000cm so 0.828km=82,800cm
i hope this helps:)
The equation ΔHsoln = ΔH1+ΔH2+ΔH<span>3 means that either the solution is endothermic (</span>ΔH < 0, the resulting reaction is cold) or exothermic (ΔH>0, the resulting reaction is hot). The lattice energy can be solve through this equation,
<span>lattice energy = </span>ΔHsolvation - IMF - ΔHsoln<span>
</span>
