Question

Answers only please 100pts and brainliest. you will be reported for wrong answers.

Answer 1

Answer:

no

Explanation:

Answer 2

Answer:

K= 25.16%

Mn= 34.59%

O= 40.25%

Explanation:

$KMnO_4$

Find the total mass of the compound. You can do this by multiplying by the molar mass.

$K=40*1=40\\Mn=55*1=55\\O=16*4=64$

add them:

40+55+64=159g

Now convert each element individually to grams using molar mass

$1molK(\frac{40gK}{1molK} )=40gK$

$1molMn(\frac{55gMn}{1molMn} )=55gMn$

$4molO(\frac{16gO}{1molO})=64gO$

Divide by the mass of the compound and multiply by 100

$K=\frac{40g}{159g} *100=25.16$

$Mn=\frac{55g}{159g}*100=34.59$

$O=\frac{64g}{159g}*100=40.25$