The answer is D.
<u>Explanation</u>
Without trees, no carbon dioxide will be released into the air. It would not raise oxygen levels, and it wouldn’t effect rising sea levels.
Answer:
An object which experiences either a change in the magnitude or the direction of the velocity vector can be said to be accelerating. This explains why an object moving in a circle at constant speed can be said to accelerate - the direction of the velocity changes.
Explanation:
Answer:
Option 1 is correct. C10H10N10O2
Explanation:
Step 1: Data given
Mass of a compound = 8.84 grams
Mass of C = 3.53 grams
Mass of H = 0.295 grams
Mass of N = 4.08 grams
Mass of O = 0.935 grams
Atomic mass C = 12.01 g/mol
Atomic mass H = 1.01 g/mol
Atomic mass N = 14.0 g/mol
Atomic mass O = 16.0 g/mol
Step 2: Calculate moles
Moles = mass / molar mass
Moles C = 3.53 grams / 12.01 g/mol
Moles C = 0.294 moles
Moles H = 0.295 grams / 1.01 g/mol
Moles H = 0.292 moles
Moles N = 4.08 grams / 14.0 g/mol
Moles N = 0.291 moles
Moles O = 0.935 grams / 16 g/mol
Moles O = 0.0584 moles
Step 3: Calculate mol ratio
We divide by the smallest amount of moles
C: 0.294 / 0.0584 = 5
H: 0.292 / 0.0584 = 5
N: 0.291/0.0584 = 5
O: 0.0584/0.0584 = 1
The empirical formula is C5H5N5O
Option 1 has this empirical formula
C10H10N10O2
Answer:
b. using less water
Explanation:
Pollution can be defined as the physical degradation or contamination of the environment through an emission of harmful, poisonous and toxic chemical substances.
In the United States of America, the agency which was established by US Congress and saddled with the responsibility of overseeing all aspects of pollution, environmental clean up, pesticide use, contamination, and hazardous waste spills is the Environmental Protection Agency (EPA). Also, EPA research solutions, policy development, and enforcement of regulations through the resource Conservation and Recovery Act.
In homes and offices, an effective and efficient design of pipes and other water-related facilities would go a long way to reduce water pollution because the water used are well managed and properly disposed into sinkholes.
Hence, more efficient plumbing reduces water pollution by using less water
Answer: The %w/w protein in the sample is 15.2 %
Explanation:
To calculate the number of moles for given molarity, we use the equation:
According to stoichiometry :
1 mole of 
require 1 mole of 
Thus 0.0023 moles of will require=
of
moles of HCl used = (0.0047-0.0023) = 0.0024
1 mole of HCl uses = 1 mole of ammonia
Thus 0.0024 moles uses = 
of ammonia
Mass of ammonia= 
17 g of ammonia contains = 14 g of Nitrogen
Thus 0.0408 g of ammonia contains = 
of Nitrogen
Now 17.45 g of Nitrogen is present in = 100 g of protein
Thus 0.034 g of Nitrogen is present in =
of protein
Now % w/w of protein = 
Thus %w/w protein in the sample is 15.2%
