The carbon and hydrogen atoms are 'competing' for electrons
Of the following, which is most likely to result after a farmer sprays his crops with pesticides?D. A neighbor’s well tests positive for pesticides.
Carbon dioxide is a colorless, odorless gas. Why is it considered a pollutant?
A. It gets into natural waters and kills fish.
Answer:
62.73g
Explanation:
Using the following formula;
Molarity = n/V
Where;
n = number of moles (mol)
V = volume (L)
From the information given below,
V = 230mL = 230/1000 = 0.230L
M = 3.21 M
3.21 = n/0.230
n = 3.21 × 0.230
n = 0.738 mol of KNO2
Molar mass of KNO2 = 39 + 14 + 16(2)
= 53 + 32
= 85g/mol
mole = mass/molar mass
0.738 mol = mass/85g/mol
Mass = 0.738 × 85
mass = 62.73g
Answer:
Plants and animals can be damaged by acid rain.
Explanation:
Acid burns and is harmful to things not accustomed to contact with acid.
Answer: Option (d) is the correct answer.
Explanation:
Endothermic process is a process in which energy or heat is absorbed by reactant species.
For example, melting of ice cubes is an endothermic process as it is absorbing heat from the surrounding and gives a cooling effect.
Thus, we can conclude that the process in which a substance gains energy is an endothermic process.