Reacts with air..physical or chemical property ;)
Answers
Reacting with air is a chemical property because here two substances are reacting and changing their atoms and appearance, which can not be unchanged.
What are chemical properties?
Chemical properties are those property properties of a substance that does not depend on the quantity of that substance.
For example, a magnet with a small amount of magnet has the same magnetic property and a large amount of magnet has the same magnetic property. The magnetic property of the magnet does not change with the amount of substance.
Air contains many gases, and substances when exposed to air, react with it and change their appearance and chemical appearance, this is a chemical change.
Thus, because two substances are here reacting and changing their atoms and appearance, which cannot be unmodified, reacting with air is a chemical attribute.
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b. compound
c. solution
d. suspension
e. colloid
Answers
The substances that can't be separated into simpler substances or converted into other substances by chemical processes are elements. They are fundamental substances and cannot be changed into other elements through chemical processes. The correct answer to the given question is option a. elements
The answer to your question is a. elements. In chemistry, elements are substances that cannot be separated into simpler substances or converted into another substance by chemical processes.
This is what makes them fundamental substances. Chemical processes can change compounds, solutions, suspensions, and colloids into different substances, but they cannot change an element into a different element. For example, hydrogen is an element that cannot be converted into any other element through chemical processes. It is fundamentally hydrogen.
The correct answer to the given question is option a. elements
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Answers
Answer:
We do not have - the amount of substance.
The molecular weight () of Bromine is 80.
B. An electron has a neutral electrical charge.
C. An electron is much larger than an atom.
D. An electron is located inside the nucleus of an atom.
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Answer: Option (A) is the correct answer.
Explanation:
An atom consists of three sub atomic particles. These particles are protons, electrons and neutrons.
Protons have a positive charge. Whereas neutrons have no charge. On the other hand, electrons have a negative charge.
Thus, we can conclude that out of the given options, an electron has a negative electrical charge is the correct statement.
HELP PLS!!!!
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Answer:10 grams
Explanation:
b. using pure water
c. blowing on the hot water
d. putting the powder and hot water in a mixer
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A , i think because pure water won't dissolve the powder fast.
B. An atom of cobalt contains more electrons than protons.
C. An atom of cobalt contains the same number of neutrons and protons.
D. An atom of cobalt contains the same number of neutrons, electrons and protons.
Answers
Answer:
A
Explanation:
27 us the number of protons when we subtract 27 from 59 it will be 32 because a mass number is the sum of proton and neutron but tell u more on the comment
Answer: A - An atom of cobalt contains more neutrons than protons.
Explanation: The atomic number is the number of protons in an atom. The atomic mass is the sum of protons & neutrons in an atom. So, with simple math we can figure out the number of neutrons. Total 59 - 27 protons = 32 neutrons. Which means that A is the only right answer in this case.
Little Extra: A & B would both be correct if Cobalt was a negatively charged ion. An atom is an ion if it is charged, and an ion is either negatively charged or positively charged. For example, if Cobalt had 27 protons & 26 electrons it's overall charge would be positive since it has more protons than electrons. And it would be negatively charged if Cobalt had 27 protons & 28 electrons. No charge if there are 27 protons & 27 electrons because proton +1 and electron -1. Imagine 27-27=0 no charge, 27-26= +1 charge, 27-28= -1 charge
I hope this made you smarter.