Answer:
it stays the same i think
Explanation:
Answer:
The two observations we made from viewing the solar system model are as follows as:
1). When we look at the sky we observe that the motions of all the planets and the stars are perfect circular movements with a good and high speed, but not in velocity because in velocity direction doesn't charges.
2). The sun is at the centre of our solar system and all the planets are equidistant to each other planets and also revolve around the sun.
Answer:
52.0 gof CO2 contains 7.1 *10^23 molecules
1 molecule of CO2 has a mass of 7.3*10^-23 grams
Explanation:
Step 1: Data given
Mass of CO2 = 52.0 grams
Molar mass of CO2 = 44.01 g/mol
Number of Avogadro = 6.022 * 10^23 / mol
Step 2: Calculate moles of CO2
Moles CO2 = Mass CO2 / molar mass CO2
Moles CO2 = 52.0 grams / 44.01 g/mol
Moles CO2 = 1.18 moles
Step 3: Calculate molecules in 1.18 moles CO2
Number of molecules = 1.18 moles * 6.022*10^23 = 7.1 *10^23 molecules
1 molecule of CO2
Number of moles = 1 / 6.022*10^23
Number of moles = 1.66 *10^-24
Mass CO2 = 1.66*10^-24 moles * 44.01 g/mol
Mass CO2 = 7.3*10^-23 grams