Select the correct scientific notation form of this numeral using only 2 significant figures. 5,489.6654
Answers
The correct scientific notation form of the number 5,489.6654 using only 2 significant figures is: 5.5 * 10³
What is scientific notation
Scientific notation is a way to represent very large or very small numbers in a more concise and manageable format. It consists of two parts: a coefficient and an exponent of 10.
In your given number, 5,489.6654, we want to express it in scientific notation using only 2 significant figures. Significant figures are the digits in a number that contribute to its precision.
Identify the significant figures: From the given number, we have two significant figures, which are 5 and 4.
Determine the coefficient: To represent the number in scientific notation, we want the coefficient to be between 1 and 10. In this case, we can round the number to 5.5 (rounding the 8 up).
Determine the exponent of 10: To express the number 5.5 in scientific notation, we need to move the decimal point in the original number to the right by one place.
Learn more about scientific notation
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Answer:
5.4 × 10^3.
Explanation:
Not 5.49 × 10^3, 5.4 × 10^7, or 5.5 × 10^3.
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x = 0.50 mg / 0.10
x = 5.0 mL
hope this helps!
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The experiment shows that the atoms are mostly empty spaces with most of the mass concentrated at the center, which is the nucleus of the atom.
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Rutherford's model also called Rutherfords' atomicmodel was a model describing the nuclear atom or the planetary model of the atom. It gave a description of the structure of atoms.
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Answer: When the pressure exerted on a confined gas at constant temperature is doubled, the volume of the gas is halved.
Explanation:
To calculate the new volume, we use the equation given by Boyle's law. This law states that pressure is inversely proportional to the volume of the gas at constant temperature.
The equation given by this law is:
where,
= initial pressure of gas = p
= initial volume of gas = v
= final pressure of gas= 2p
= final volume of gas = ?
Putting values in above equation, we get:
Thus the final volume of the gas is half of the initial volume.