There are different kinds of compositions. The percentage mass composition of chlorine is 42% in HClO3 (gram-formula mass = 84 g/mol)
<h3>What is HClO3 known as?</h3>
This HClO3 is known to be popularly called as Chloric acid.
Percentage mass of chlorine is formula:
Percentage mass composition = mass of element * 100%/mass of compound.
Therefore;
HClO3 (gram-formula mass = 84 g/mol)
Percentage mass composition of chlorine = 35 * 100% / 84 = 42%
See full question below.
In which compound is the percent composition by mass of chlorine equal to 42%?
(1) HClO (gram-formula mass = 52 g/mol)
(2) HClO2 (gram-formula mass = 68 g/mol)
(3) HClO3 (gram-formula mass = 84 g/mol)
(4) HClO4 (gram-formula mass = 100. g/mol)
Learn more about compound from
brainly.com/question/24924853
An inability to report that the two (2) rows in set B contain the same number of dots by Rebecca reflects a lack of conservation.
<h3>What is cognitive development?</h3>
Cognitive development refers to the development of learning skills, thought processes, knowledge and problem-solving abilities in living organisms such as humans, especially from infancy through adulthood.
In Psychology, conservation can be defined as a logical thinking ability that allows a living organism to understand that physical quantities such as lines, doesn't change in amount even when their appearance are altered.
Read more on cognitive development here: brainly.com/question/8893006
Answer:
The cast of Ana y Manuel - 2004 includes: Elena Anaya as Ana
Explanation:
must be greater than zero
must be less than zero
<h2>
Explanation:</h2>
The complete question is written in a comment above. The system of inequalities is the following:
So, in order to find 
you just need to replace both x and y-coordinates into our system. Therefore:
So the conclusion is:
- must be greater than zero
- must be less than zero
<h2>Learn more:</h2>
Inequalities: brainly.com/question/12890742
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