An object with a mass of 70g and a volume of 100ml is most likely what substance

70g/100ml = 0.7 g/cm^3

Sounds like apples, ashes, cardboard, or a lot of other stuff that floats on water.

No element I can think of has that density.

Maybe you have a table you wish to consult.

good bye all of you are telling lies

To determine the substance that an object is most likely made of, we need to consider its density. Density is the ratio of an object's mass to its volume, and it can provide clues about the material it is made of.

We can calculate the density using the formula: Density = Mass / Volume.

In this case, the object has a mass of 70g and a volume of 100ml. So, we can calculate the density as follows:

Density = 70g / 100ml.

To simplify the calculation, we can convert the volume from milliliters (ml) to grams (g), assuming the substance has the same density as water. Since the density of water is approximately 1g/ml, we can multiply the volume by 1g/ml:

Density = 70g / 100ml * (1g/ml) = 0.7g/ml.

Now, by comparing the density value with known densities of substances, we can determine the most likely substance.

If the calculated density of 0.7g/ml matches the density of a known substance, then the object is most likely made of that substance. However, if the calculated density does not match any known substances, we can estimate the type of material based on its density. For instance, if the density falls within the range of metals, it might indicate that the object is made of metal; if it falls within the range of plastics, it can suggest that the object is made of plastic, and so on.

Therefore, without knowing the specific density, it is challenging to determine the substance with certainty.