Which of the following are elements in this equation: 2Ca (s) + O2(g) - 2Cao (s)?

Check all that apply.

A. g
B. Ca
C. O
D. s

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

What can be found in the ionosphere

Which of the following is a conclusion that resulted from ernest rutherford’s scattering experiment? (will mark brainliest) a. the nucleus is negatively charged b. the atom is a dense solid and is indivisible c. the mass is conserved when atoms react chemically d. the nucleus is very small and the atom is mostly empty space