For the 4th time ;-; can someone help me please Molecular Equation: __NaCl (aq) + __K2CO3 (aq) →
Complete Ionic Equation:
Net Ionic Equation:

How many moles of lead are in 1.50 x 10^12 atoms of lead? could you explain the answer as well and not just give it to me i am refreshing for finals and i need to know how to do it

Which of the following is a physical property flammability heat of combustion solubility and toxicity

If a simple machine aduces the strength of a force, what must be increased? the speed of the input force the work the simple machine performs the size of the simple machine the distance over which the force is applied