To convert from moles to grams you divide by the molar mass of the element. To convert from grams to moles you X by the molar mass element
The correct answer is d) methane (
)
The other options are elements.
Answer:
A. In a graduated cylinder, put some quantity of water and measure the initial volume. Then put a coin and measure the volume. To find the volume of the coin, simply subtract the initial volume (water only) from the ending volume (water + coin). To measure the mass, take a dry coin and place it on an electronic scale. Density = mass / volume, so divide the mass by the volume to calculate the density of the coin.
B. When measuring the volume, make sure to look at the graduated cylinder at eye level and read from the bottom of the meniscus.
I think it could be C maybeee though
Answer:
In addition to aluminium, the main materials in duralumin are copper, manganese and magnesium.
