purelentama purelentama

24-03-2017
Chemistry

contestada

Find the formula for the compound that contains 72.40% iron and 27.60% oxygen.

Respuesta :

skilewis skilewis

24-03-2017

Oxygen = 16
Iron = 55.8
16 x 27.6% = 4.4 /4 = 1.1
55.8 x 72.4% = 40.4 /4 = 10.1
1 oxygen and 10 iron, so Fe10 O

Answer Link

Otras preguntas

The quote below was written in the mid 1900s: "Surely no sane member of the human race could discover victory in such desolation." -President Dwight Eisenhower.

Briana builds a circuit that has a resistance of 8.0 . What voltage should she apply to have a current of 0.8 A?

What was the Berlin Wall

The cells of organisms are specialized for certain jobs, so their cells must depend on each other. This is science. I have searched up and down in my text bo

Use the GCF to factor this expression: 90x + 4

What are the solutions of the equation (x + 2)2 + 12(x + 2) – 14 = 0? Use u substitution and the quadratic formula to solve. a) x= -8+5 square root 2 b) x=-6+5

factor completely, the expression: 2x^3-2x^3-12x

Which words in the sentence make up the adverb phrase? Which words do the adverb phrase modify? The blue shark can swim up to 25 miles per hour through the wat

Given what you know about the decision to use the atomic bomb, write a paragraph explaining why you would or would not have made the same decision. In your para

Choose the equation that could be used to find three consecutive integers whose sum is 36. n + (n + 2) + (n + 4) = 36 n + (n + 1) + (n + 3) = 36 n + (n + 1) + (