1. 44 grams
2. KCIO3
3. the third one
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When making a guess, you are forming a hypothesis.
A hypothesis is a statement you make based on your observations of a certain phenomenon, so it's an educated guess.
You will then carry out an experiment whose results will hopefully support your hypothesis.
Explanation:
Hypothesis is a supposition or projected clarification created on the premise of restricted proof as a place to begin for more investigation.A hypothesis may be a tentative, testable answer to a scientific question. Once a person encompasses a scientific question she is fascinated by, the person reads up to search out out what's already far-famed on the subject. Then she uses that data to make a tentative answer to her scientific question. Typically folks discuss with the tentative answer as "an educated guess."
a. True
b. False
Answer:
The correct option is B) false.
Explanation:
Absolute zero is the point where it is not feasible to cool further.
The lowest possible temperature is 0 kelvin which is also known as absolute zero. In degrees its corresponds to –273.15 degrees Celsius.
it is not possible to reach or cool a substance to absolute zero although nearby temperatures can be reached.
Consider the provided statement.
Researchers have now been able to cool substances to absolute zero is a false statement.
The correct option is B) false.
B. remain in the negatively charged body.
C. move from the positively charged body to the negatively charged body.
D. remain in the positively charged body.
Answer:
A. move from the negatively charged body to the positively charged body.
Explanation:
because this is the correct answer
(2) emitted by the electron
(3) absorbed by the nucleus
(4) absorbed by the electron
An atom of oxygen is in an excited state. When an electron in this atom moves from the third shell to the second shell, energy is emitted by the electron. Hence, option B is correct.
The smallest piece of stuff that still retains its characteristics is an atom. A gold atom, for instance, is the smallest piece of that element that will still retain all of gold's properties and behaviors. When an atom is disassembled into its component parts, the subatomic particles found inside each have special characteristics that are not at all similar to those of the element the atom represents. Protons, neutrons, and electrons are the three different subatomic particle kinds.
The electron that transitioned from a higher to a lower level felt the change in energy level. Since the nucleus is unaffected, its energy levels are unaffected as well. Since it requires more energy to keep an electron at a higher energy level than a lower one, the shift in energy levels indicates that the electron released some energy.
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