You have a raw egg you put it in a hot pan boom cooked egg most chemical changes are nonreversibal <span />
Answer:
there are three fundamental particles of atom
which are :
- proton ( positively charged (+) )
- electron ( negatively charged ( - ) )
- neutron ( having no charge on it ( neutral ))
Particle Symbol
electron =》e-
proton =》p+
neutron =》n°
Answer:
A
Explanation:
because B is wrong as it doesn't have the same mass number. C is wrong as it has different number of neutrons. D is wrong as it has more neutrons than protons.
43.8 has 3 significant figures and 1 decimal.
<h3 /><h3>What are significant figures?</h3>
The term significant figures refer to the number of important single digits (0 through 9 inclusive) in the coefficient of an expression in scientific notation.
All zeros that occur between any two non-zero digits are significant. For example, 108.0097 contains seven significant digits. All zeros that are on the right of a decimal point and also to the left of a non-zero digit are never significant. For example, 0.00798 contained three significant digits.
Hence, 43.8 has 3 significant figures and 1 decimal.
Learn more about significant figures here:
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Answer:
It will a because it has a lower density than water