Delia worked for 45 minutes on her oil painting. She took a break at 10:35 am at what time did Delia start working on the painting?

Would Sodium (Na) and Magnesium (Mg) bond to make a compound? Why or why not?

Balance the following reaction: Mg + HCl → MgCl2 + H2

Which of the answer choices is correctly defined as a state of matter with a defined volume and shape? plasma liquid gas solid

A graduated cylinder contains 167 mL of water. A 20.0-g piece of iron and a 23.0-g piece of lead are added. What is the new water level, in milliliters, in the cylinder?

A vessel is full of a mixture of kerosene and petrol in which there is 18% kerosene. Eight litres are drawn off and then the vessel is filled with petrol.

Which of the following has the greatest first ionization engergy li, be, b or c

If we know that 10.0 cm3 of ice has a mass of 9.19 g what is the density of ice

1. The is the particle in the nucleus of the atom that carries a positive charge and is counted to identify the atomic number. What's the answer

How many grams are there in 5.00 moles of lead Pb?

A large body in space that orbits a star and does not produce light of its own