Answer:
This question is incomplete as it lacks options, the options are:
A) What is the radius of each particle of the substance?
B) Does the substance contain more than one type of atom?
C) Was a chemical reaction necessary to create the substance?
D) What is the electrical charge of the particles of the substance?
The answer is B
Explanation:
In chemistry, an element is a substance made up of a single type of atom i.e. only one atom of the same type constitutes an element while a compound is a substance that contains two or more different elements. If a compound contains different elements, it means that a compound will certainly contain more than one type of atom.
According to this question, the best question to ask when Alyssa wants to differentiate between an element and a compound is: DOES THE SUBSTANCE CONTAIN MORE THAN ONE TYPE OF ATOM?
- If the answer is yes, the substance is a COMPOUND
- If the answer is no, the substance is an ELEMENT.
Scientific investigations on Sudbury's soil revealed the decrease
in soil pH was correlated with increased copper and nickel levels.
Vision is to the occipital lobe as touch is to the parietal lobe.
<span>The occipital lobe is the visual processing center and one of the four major lobes of the cerebral cortex in the brain of mammals. This lobe processes the rapid information that our eyes are sending.</span>
The parieatl lobe is other lobe from the foru major lobes. It is positioned above the occipital lobe and behind the frontal lobe and central sulcus. This lobe is responsible for integration of sensory information , including spatial sense and navigation.
Answer:
Early experiments on children don't fit today's standards of ethical treatment.
Explanation:
Today, because of advances in ethical considerations scientists would not conduct this experiment never the less get approved to do it because an infant would not be able to speak up and make decisions.
