What is the molarity of salt if 81.05 g of Ca(HCO), is dissolved in 400 ml of water, then as'd to 500 mL? (qs'd means to bring to a final volume.)

20 pts ‼️ an unmanned spacecraft travels to mars. mars has a lower strength of gravity than earth. where in the image is the spacecraft’s weight the greatest?

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

What is the common name for the compound shown here? enter the common name of the compound shown?