Answer:
Explanation:
Density is found by dividing the mass by the volume.
The mass of the object is 11 grams and the volume is 13 milliliters.
Substitute the values into the formula.
Divide.
Round to the nearest hundredth. The 6 in the thousandth place tells us to round the 4 to a 5.
The density is about <u>0.85 grams per milliliter.</u>
Answer:
see explanation
Explanation:
The Lewis structure of a substance is otherwise known as its dot electron structure. It gives an immediate picture of the bonding and number of electron pairs in the molecule. The diagram shows only the valence electrons on each of the bonding atoms in the molecule and how they combine to form the molecule under consideration.
The correct Lewis structure for CO2 is shown in the image attached. CO2 has 16 valence electrons. This can be verified by counting the number of dots in the image attached.
Answer:
Wavelength of sound waves millimetres
Explanation:
The speed of any wave is equal to the product of its wavelength and frequency.
This can be represented mathematically as
Where
V is the speed of sound waves
f is the frequency of sound waves
and
is the wavelength of the sound waves.
Substituting the given values in above equation we get -
meters
millimetres
Answer:
Well I know that the first one is true.
Explanation: