Write a balanced equation for the following: 1. P4 + O2 → P2O5

2. C3H8 + O2 → CO2 + H2O

3. Ca2Si + Cl2 → CaCl2 + SiCl4

Select the correct answer. which statement is true about a polarized object? o a. it gains electrons and becomes negatively charged. ob. it gains protons and becomes positively charged. oc. the number of positive and negative charges can be the same. od. it has to be a metal. o e. there is no change in the distribution of the charge in the object. reset next what

Calculate the number of kilojoules to warm 125 g of iron from 23.5°c to 78.0°c.

Which substance can be broken down by chemical means