Answer:
Gold
Explanation:
We are given that
Mass of sample ,m=385 g
Volume ,V=20mL
We have to find the coin is gold or yellow brass.
We know that
Density=
Using the formula
Density of coin=19.3g/mL
Density of gold=19.3g/mL
Hence, the coin is gold.
In a chemical equation, the reactants are written on the left, and the products are written on the right.The coefficients next to the symbols of entities indicate the number of moles of a substance produced or used in the chemical reaction.The reactants and products are separated by an arrow, usually read aloud as "yields."Chemical equations should contain information about the state properties of products and reactants, whether aqueous (dissolved in water) solid (s), liquid (l), or gas (g).
<span>
</span>
Answer:
A blunt object, such as a hammer or flashlight, etc.
Explanation:
This is because these objects are far slower than something like a bullet, which causes high velocity blood spatter.
Answer: There are 0.499 moles present in molecules of Boron trichloride.
Explanation:
According to mole concept, there are molecules present in 1 mole of a substance.
Hence, number of moles present in molecules are as follows.
Thus, we can conclude that there are 0.499 moles present in molecules of Boron trichloride.
The answer would be Biased. I am not 100 percent sure but I really hope that helps.