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3 years ago

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Calcium phosphate reacts with sulfuric acid to form calcium sulfate and phosphoric acid. What is the stoichiometric coefficient

for sulfuric acid when the chemical equation is balanced using the lowest, whole-number stoichiometric coefficients?

1 answer:

love history [14]3 years ago

4 0

Answer:

Explanation:

Isjzjzsj

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Sodium chlorate = sodium chloride + oxygen formula

UNO [17]

Answer:

NaClO3 = NaCl + O2

Explanation:

Word equation: Sodium chlorate → Sodium chloride + Oxygen gas

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2 years ago

What is the composition, in atom percent, of an alloy that contains a) 45.5 lbm of silver, b) 83.7 lbm of gold, and c) 6.3 lbm o

lyudmila [28]

Answer:

$\% atAg=44.6\%\\\% atAu=44.9\%\\\% atCu=10.5\%$

Explanation:

Hello,

In this case, for computing the atom percent, one must obtain the number of atoms of silver, gold and copper as shown below:

$atomsAg=45.5lbm*\frac{453.59g}{1lbm}*\frac{1molAg}{107.87gAg}*\frac{6.022x10^{23}atomsAg}{1molAg}=1.15x10^{26}atomsAg\\atomsAu=83.7lbm*\frac{453.59g}{1lbm}*\frac{1molAu}{196.97gAu}*\frac{6.022x10^{23}atomsAu}{1molAu}=1.16x10^{26}atomsAu\\atomsCu=6.3lbm*\frac{453.59g}{1lbm}*\frac{1molAg}{63.55gCu}*\frac{6.022x10^{23}atomsCu}{1molCu}=2.71x10^{25}atomsCu$

Thus, the atom percent turns out:

$\% atAg=\frac{1.15x10^{26}}{1.15x10^{26}+1.16x10^{26}+2.71x10^{25}}*100\% =44.6\%\\\% atAu=\frac{1.16x10^{26}}{1.15x10^{26}+1.16x10^{26}+2.71x10^{25}}*100\% =44.9\%\\\% atCu=\frac{2.71x10^{25}}{1.15x10^{26}+1.16x10^{26}+2.71x10^{25}}*100\% =10.5\%$

Best regards.

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3 years ago

Which two energy sources were used the most in

Naily [24]

Answer:

The 1st and 2nd ones on the top

Explanation:

Hope this helps:)

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3 years ago

What important points do you need to remember about combustion?

goldenfox [79]

Explanation:

A substance burning in the presence of oxygen and leads to the formation of heat and light is called combustion.

Some important points about combustion are as follows:

Fuel should be present for burning.
Air should be present for the supply of oxygen.
There should be heat (or ignition temperature) to initiate the chemical reaction.

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2 years ago

Write an equation that shows the formation of a manganese(II) ion from a neutral manganese atom.

bixtya [17]

Answer:

Mg ---> Mg²⁺+ + 2e⁻

Explanation:

4 0

3 years ago

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