Since the configuration contains the number 2s and 2p, you can assume that it is in period 2 of the periodic table. By noble gas shorthand, you start with helium, which is atomic number 2. 2s²2p^4 has 2+4 = 6 valence
Add 2+6 = 8, which is Oxygen.
Answer:
C
Explanation:
Potassium metal reacts very rapidly with water, which forms Potassium hydroxide (KOH) and hydrogen gas (H2).
Answer:
Mass = 627.2 g
Explanation:
Given data:
Number of moles of barium nitrate = 2.4 mol
Mass of barium nitrate = ?
Solution:
Formula:
Mass = number of moles × molar mass
Molar mass of barium nitrate = 261.337 g/mol
Mass = 2.4 mol × 261.337 g/mol
Mass = 627.2 g
Answer:
abiotic components are non-living chemical and physical factors in the environment which affect ecosystems. Biotic describes a living component of an ecosystem
Explanation: