Pls help 1st box options:
A. metamorphosis
B. pupae stage
C. simple life cycle

2nd box options:
A. breathes through lungs
B. forms a pupa
C. lives completely underwater

What is the mass of 0.46 mol of mgcl2

A50.0 ml sample of gas at 20.0 atm of pressure is compressed to 40.0 atm of pressure at constant temperature. what is the new volume? 0.0100 ml 0.325 ml 25.0 ml 100. ml

Read the chemical equation. 2c2h2 + 5o2 → 4co2 + 2h2o which of the following statements would be correct if one mole of c2h2 was used in this reaction? one mole of oxygen was used in this reaction. five moles of oxygen were used in this reaction. four moles of carbon dioxide were produced from this reaction. two moles of carbon dioxide were produced from this reaction.