What state of matter is vapor

A 2.241-g sample of nickel reacts with oxygen to form 2.852 g of the metal oxide. Calculate the empirical formula of the oxide?

Choose all the answers that apply. Which of the following equations are balanced? 2H2 + O2 → 2H2O 2S + 3O2 → 2SO3 Li + Cl2 → LiCl 2K + 2H2O → H2 + 2KOH 2Fe + Cu (NO3) 2 → 2Cu + Fe (NO3) 2

Which if the following has a charge A. molecule B. atom C. element D. ion

When magnesium carbonate, MgCO2, reacts with nitric acid, HNO3, it forms magnesium nitrate, Mg (NO3) 2, and carbonic acid, H2CO3. Carbonic acid then breaks down into water and carbon dioxide.

Why does water dissolve sugar? Explain your answer!

According to Reference Table N, which radioactive isotope will retain only 1/8 its original radioactive atoms after approximately 43 days? A. gold-198 B. iodine-131 C. phosphorus-32 D. radon-222

the cathode ray experiment indicated the existence of negatively charged particles in an atom. this experiment also disproved the part of daltons atomic model that claimed indivisibility of the atom.

Hich features are created by wave erosion? Select three options. arches cliffs deltas rills stacks

Drag the types of electromagnetic waves to place them in order of increasing wavelength. Ultraviolet Infrared visible light

What happens when a given mass of a liquid starts to expand?