I am doing a gizmo and need help badly, this is what is on the worksheet. Can someone please help me, I am struggling a lot. Thank you.

6. Practice: Solve each of the following problems using dimensional analysis (or another method). Show your work. (Use a periodic table to look up the necessary atomic masses.)
A. 75 g KMnO4 = molecules KMnO4
B. 7.23 × 10 24Al atoms = grams Al
C. 9.23 × 10 23Au atoms = moles Au
D. 125 g H3PO4 = molecules H3PO4
E. 0.75 moles CO2 = total atoms

How much energy is made when a pice of wood burns. how do you know

Identify one disadvantage to each of the following models of electron configuration: -dot structures -arrow and line diagrams -written electron configurations type in your answer below. (answer) -dot structures do not show the distribution of electrons in orbitals and take up a lot of space. -arrow and line diagrams take up a lot of space and make it difficult to count electrons. -written configurations make it easy to lose count of electrons and do not show the distribution of electrons in orbitals.

Particles vibrate in a rigid structure and do not move relative to their neighbors.