A.) Cesium is the lowest electronegative element......
Answer:
Hydrocarbons
Explanation:
They all are made up of only carbon and hydrogen atoms, so they're organic molecules known as hydrocarbons. Decane and Heptane are alkanes, Propene is an alkene.
Answer:
1.30 m
Explanation:
First we <u>calculate the number of moles of solute in the solution</u>, using the <em>definition of molarity</em>:
- Molarity = moles / liters
- Converting 250 mL ⇒ 250 / 1000 = 0.250 L
- moles = 1.50 M * 0.250 L = 0.375 moles
Then we <u>calculate the mass of solvent</u>, using the <em>given volume and density</em>:
- 1.15 g/mL * 250 mL = 287.5 g
- Converting <em>287.5 g to kg</em> ⇒ 287.5 / 1000 = 0.2875 kg
Now we <u>calculate the molality of the solution</u>:
- molality = moles of solute / kg of solvent = 0.375 mol / 0.2875 kg
I think the answer is telophase lol