True or false the nucleus contains neutrons and electrons

45.0g of Silver (0.23 J/goc) was mixed in a beaker with 18.0g of water (4.18 J/g°C) with an initial temperature of 22.0°C. The final temperature was found to be 51.0°C. What was the change in temperature of the silver?

Suppose that 0.25 mole of gas C was added to the mixture without changing the total pressure of the mixture. What is the partial pressure of C?

Which gas would act most like an ideal gas? a. chlorine gas at 32oC b. chlorine gas at - 185oC

Which of the following is the correct name for the compound mgbr2? magnesium bromate magnesium bromide magnesium dibromide magnesium (1) bromide

Which cell structures does this fish embryo cell contain? Select all that apply. cell wall nucleus chloroplasts mitochondria cell membrane

How would you prepare 70.0 ml of 0.200 m hno3 from a stock solution of 5.00 m hno3?

What is the law of conversation of mass

What mass of precipitate will be produced from the reaction of 50.0 mL of 2.50 mol/L sodium hydroxide with an excess of zinc chloride solution. Show your work

A block of aluminum metal has a volume of 3.15 L and a mass of 8.51 kg. What is the density (g/mL) ?

If electrons fall back down to the 2nd energy level, what type of electromagnetic radiation is released?