Convert 530 grams of Sodium carbonate (Na2CO3) into moles of Sodium carbonate (Na2CO3) Enter your answer(s) here
Convert 4.2 moles of H2O into grams of H2O
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How many moles are in 12.04 x 10^23 particles of O2 ?
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How many particles are in 3 moles of magnesium (Mg)?

How do i complete this electrolysis of water lab? i’m at home, so i don’t have the materials, and the lab didn’t properly work and was incomplete at school.

What are the coefficients that will balance the skeleton equation below? n2 + h2 → nh3

The image compares the arrangement of electrons in two different neutral atoms. a figure labeled atom q has a shaded sphere at the center of three concentric circles. the innermost circle has two black spheres. the middle circle has six black spheres. to the left of this figure is another figure labeled atom p. atom p has a shaded sphere at the center of three concentric circles. the innermost circle has two black spheres. the middle circle has seven black spheres. which of the following best explains the position of the two atoms in the periodic table? atom p has an estimated zeff of 7 and is therefore to the left of atom q, which has a zeff of 6. atom p has an estimated zeff of 7 and is therefore to the right of atom q, which has a zeff of 6. atom p has an estimated zeff of 5 and is therefore below atom q, which has a zeff of 4. atom p has an estimated zeff of 5 and is therefore above atom q, which has a zeff of 4.