what elements is represented by each electron cofiguration
{ar} 4s2 {kr} 5s2 4d 10 5p4
{ar} 4s2 {kr} 5s2 4d 10 5p4
When 9.12 g of HCl was dissolved in 190 g of water, the freezing point of the solution was -4.65oC. What is the value of the van't Hoff factor for HCl? Here is what I did- I know that I use:...
1.) Group 1 2.) Group 2 3.) Group 13 4.) Group 14 This question doesn't make any sense to me :/ Can you please explain it?
1.) KI 2.)HCl 3.) MgS 4.) NO
1. 4 and 0 2. 3 and 1 3. 3 and 0 4. 2 and 2
i need ti know how many electrons aluminum have
I have (3S,4S)-3-bromo-3,4-dimethylhexane but I don't know based on on the given picture why that is. I cannot post the picture but here the description. I start out with two carbons, then use...
At 1 atm, how much energy is required to heat 83.0 g of H2O(s) at –12.0 °C to H2O(g) at 115.0 °C?
its the molecule HOCl
1.) If 16.45 mL of 0.135 M nitric acid neutralizes 26.0 mL of ammonium hydroxide, what is the molarity of the base? HNO3(aq) + NH4OH(aq) --> NH4NO3(aq) + H2O(l) I used stoichiometry to find...
what is the asnwer?
A foul smelling gas produced by the reaction of HCL and Na2S: 2HCl + Na2S --> 2NaCl + H2S is collected in and a 1.00 L sample was found. How many moles were found in the sample knowing the...
The reaction between bleach and ammonia to yield chlorine gas has a deltaH= -422 kJ What is the value of deltaE in kilojoules if the reaction is carried out at a constant pressure of 28.0 atom...
i do not know how to work this out please help me
1. 5.00 g LiCl/ 95.0 g water 2. 100 g solution/ 5.00 g LiCl 3. 5.00 g LiCl/ 95.0 g solution 4. 95.0 g water/ 5.00 g LiCl 5. 95.0 g water/ 100 g solution I have no idea, please...
Please explain how to do this! Thanks.
Please explain. Thanks
please solve and explain
I already know how they balnace I just don't understand how they balance. why does the O(2*) balance to 25? 2 C(8*)H(18*) + 25 0(2) yields 16 CO(2*) + 18 H(2*)O These ones have me stumped...
My Chemistry Professor said that cobalt (II) hydroxide solid will not dissolve in ammonia, but during the experiment I observed that there was a reaction taking place (the clear ammonia solution turned...

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