Correct mass for 1.93×1026 molecules XeF6

Write the balanced equation for a reaction between aqueous nitric acid (hno3) and solid lithium metal (this is a single replacement reaction)

As you watch a surfer ride a wave towards the shoreline, what is the shoreline? a) displacement reference b) reference point c) coordinate plane d) cartesian boundary

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