Answer:
Explanation:
1. First take the cylinder volume formula:
2. Then take the values for the radius and the height of the cylinder and replace them into the formula:
3. Solve the equation:
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.
Answer:
the answer is D i believe. i am not shure but im like 70% sure
Question 5 is the second one.
Noble gases react very unwillingly, because the outermost shell of electrons orbiting the nucleus is full, giving these gases no incentive to swap electrons with other elements. As a result, there are very few compounds made with noble gases. Like its noble gas comrades, neon is odorless and colorless.