SOMEONE PLEASE HELP MEEE What is the mass in grams of 6.25 mol of copper (II) nitrate ,Cu(NO3)2?

Agood hypothesis includes which of the following? a: prediction b: data c: uncertainty d: conclusion

Which element has the lowest electronegativity? calcium(ca) gallium(ga) selenium(se) bromine(br)

Give a real-world example of an energy transformation that uses two of the following forms of energy: chemical, mechanical, nuclear, gravitational, radiant, electrical, thermal (heat), and/or sound.