how many calcium atoms are presented in the sample. assuming that the averageperson has 11 pints of blood in their body, what mass of Calcium does the average person have in their blood? please help.-
When I put a burning splint into the test tube it made a popping noise. What gas was produced?-It would have to be H2 gas.
Zn + H2SO4 -> ZnSO4 + H2
when you put a burning splint in the H2 combines w
Consider the following reaction:
2SO2(g) + O2(g) => 2SO3(g)
If 277.6 mL of SO2 is allowed to react with 151.9 mL of O2 (both measured at 327 K and 45.8 mmHg), find the limiting reactant. What is the
*sigh* I hate Chem. Thanks in advance for your answer!-in water! salt, chloride, potassium... its water! look at our oceans! lol-all metals form ionic compounds 1a and 2a group elements
2Mg(s)+O2(g) > 2MgO(s)delta H= -1203.6 kJ
Please explain steps to solve problem.-i know this is like arguing semantics but deltaH isnt + or -.it is just a change.the fact that you know that energy is
a. ionisation of the analyte causes lowered absorbance results because the atom population is lowered
b.Absorption by molecular species in the flame causes spectral interference.
c.The width of atom
If anyone could help me with these two problems, I would really appreciate it. Thanks!
Find the number of grams of Zinc needed to produce 6.0 grams of hydrogen, H2 from the following, Zn + 2HCl → ZnC
hi
i am always confused about the difference between sulphate and sulphide? and how can i tell which now i will use ? thanks-if the anion is 1 element... the name ends in ide
HCl.. hydrogen chloride
I believe it is just aluminum oxide, but why?
CO2is called Carbon dioxide.why isnt it just carbon oxide?-Aluminum oxide is an ionic formula (metal and a nonmetal).Prefixes such as mono-, di-, tri-, t
Hydrogen has an atomic number of 1, meaning 1 proton, 1 neutron, and 1 electron. This creates a neutral hydrogen atom.
However, when I look at the Periodic table, and for example, try to balance two
Balance and calculate the reducing agent in the reaction:
Sn(OH)3^-(aq) + Bi(OH)3(s) + OH^-(aq) Sn(OH)6^2-(aq) + Bi(s)
I really dont understand how to balance the charges. I know that the reducing
You are not sure whether to fill a balloon with He or hot air. To what temperature would the air have to be heated for a balloon to rise to the same height has the balloon filled wit He at 25.0 C? Ple
alkali metals (group one atoms) have an oxidation number of +1 because they have 1 valence electron and to create a full energy shell it is easier for them to lose one electron than to gain 7 electron
Consider the reaction:
Aluminum reacts with sulfuric acid to form aluminum sulfate and hydrogen gas.
In the balanced chemical equation, what is the lowest, whole number coefficients?-2 Al+3 H2SO4---
Can someone please guide me through this problem. I want to know how to arrive at the answer.
C_6H_12O_6 + 6O_2---->6CO_2 + 6H_2O.
Calculate the number of grams of oxygen required to convert 48 gram
