A researcher find that a compound is composed of 43.6% phosphorus and 56.4% oxygen. In a separate analyst, she finds that it has a mullet molar mass of 142 g/mol. what is the molecular formula of the compound?

How many grams of mgbr2 are needed to produce 75g or metal?

Is this correct if not can u correct me

Imagine if during the cathode ray experiment, the size of the particles of the ray was the same as the size of the atom forming the cathode. which other model or scientific observation would have also been supported? 1. this would support dalton's postulates that proposed the atoms are indivisible because no small particles are involved. 2. this would support bohr's prediction about electrons moving in orbits having specific energy. 3. this would support bohr's prediction about electrons being randomly scattered around the nucleus in the atom. 4. this would support dalton's postulates that proposed that atoms combine in fixed whole number ratios to form compounds.