Answer: Option (a) is the correct answer.
Explanation:
Conservation efforts means to carefully preserve or protect something. These efforts are fruitful when a majority of people or communities come together in order to preserve something good for the betterment of environment.
As when maximum number of people come lend their hands for help only then conservation efforts can be achieved.
For example, a city with maximum pollution can only be conserved when maximum groups of people decide to conserve plants or plant more number of trees.
Thus, we can conclude that conservation efforts are most effective when conservation efforts are most effective when multiple groups cooperate.
(2) –1 to –2 (4) +3 to +2
The change that shows an oxidation is the change –1 to +2.
The term oxidation has to do with an increase in oxidation number. This increase will always be positive.
Hence, we have to look out for the change in which there is an increase in oxidation number and this occurs for the change –1 to +2.
Learn more about oxidation:brainly.com/question/13110055?
#SPJ2
Answer:
300
Explanation:
Multiply Length by value of 1000
Answer:
0.88g
Explanation:
The reaction equation:
2NaI + Cl₂ → 2NaCl + I₂
Given parameters:
Mass of Sodium iodide = 2.29g
Unknown:
Mass of NaCl = ?
Solution:
To solve this problem, we work from the known to the unknown.
First find the number of NaI from the mass given;
Number of moles =
Molar mass of NaI = 23 + 126.9 = 149.9g/mol
Now insert the parameters and solve;
Number of moles = = 0.015mol
So;
From the balanced reaction equation;
2 moles of NaI produced 2 moles of NaCl
0.015mole of NaI will produce 0.015mole of NaCl
Therefore;
Mass = number of moles x molar mass
Molar mass of NaCl = 23 + 35.5 = 58.5g/mol
Now;
Mass of NaCl = 0.015 x 58.5 = 0.88g
a. True
b. False
Answer: False
Explanation: The moon travels at 1.42 mph around the Earth.
Answer:
false
Explanation: