Answer:
4.22 × 10 ⁻²² mol
Explanation:
Given data:
Number of molecules of bromine = 254 molecules
Number of moles = ?
Solution:
1 mole = 6.02 × 10 ²³ molecules
254 molecules × 1 mol / 6.02 × 10 ²³ molecules
42.2 × 10 ⁻²³ mol
4.22 × 10 ⁻²² mol
C. Krypton is a noble gas, on the right side of the period table, making it a non-metal.
Answer:
2nd and 4th ones
Explanation:
More sugar dissolves in water than salt
more aspirin dissolves in water than CO2 ...but less aspirin than table salt (NaCl)
Answer:
carbohydrates, lipids, proteins, nucleic acids
Answer:
The difference between weather and climate is a measure of time. Weather is what conditions of the atmosphere are over a short period of time, and climate is how the atmosphere "behaves" over relatively long periods of time.
Explanation:
please mark this answer as brainlest
