Answer:
44.01 g/mol
Explanation:
Add each elements atomic mass. For oxygen you will do that twice because their is two oxygens.
- Hope that helps! Please let me know if you need further explanation.
It will sink because water has a density of 1. and 1.1 is greater than 1 which means that the object is denser than the water so it will cause it to sink
Boi if you don’t get ya thing out of here with that who the hell knows that
Gimme the pts please thanks
Answer:
MgBr₂
Explanation:
Here we need to find the molar proportions of the two elements which will give us the empirical formula of the compound. To do that,we need to determine the number of moles the grams given represent, and then convert them to whole numbers to find their proportions.
Atomic weght Br = 79.904 g/mol mol
⇒ mol Br = 32.0 g/ 79.904 g/mol = 0.40 mol
Atomic weight Mg = 24.305 g/mol
⇒ mol Mg = 4.9 g/24.305 g/mol = 0.20 mol
Their proportions are
0.40 Br ÷ 0.20 Mg = 2 Br ÷ 1 Mg
Empirical formula = MgBr₂
Explanation:
During compression, the volume (V) of a gas decreases. When this happens, the pressure (P) of the gas increases if the number of moles (n) of gas remains constant. If you keep the pressure constant, reducing the temperature (T) also causes the gas to compress.