Answer:
Rtrt
Explanation:
How much heat, in joules, would be required to raise the temperature of 450g of Aluminum from 19.5 degrees Celsius to 31.2 degrees Celsius
<span>How iron can be more dense as a feather yet more feathers can weigh more is because density and weight are two completely different things. No matter how many feathers there are it's density never changes, it's weight is able to change but not density. Therefore the density of iron is higher no matter what but may weigh less than a group of feathers.</span>
1. gas-no fixed shape or volume
2.elements- most pure basic substances
3.IUPAC- authority which assigns names to elements
4.compound-combined atoms are different
5.weight- measures gravitational pull
6.Mendeleev- chemist who developed the periodic table
7.Atoms- tiny particles of elements
8.Carbon Dioxide-CO 2
Answer:
(a) The volume of water in the quarry is 6.496 x 10⁷ m³.
(b) The total mass of mercury is 1.19 x 10⁻³ kg.
Explanation:
(a) The volume of water can be calculated like:
Volume = depth x surface
In order to have coherence between units we will use proportions to transform km² to m².
Then,
Volume = 22.50 m x 2.887 x 10⁶ m² = 6.496 x 10⁷ m³
(b) We can find out the total mass of mercury using proportions. We will need these relations:
1 L = 10⁻³ m³
1 pg = 10⁻¹² g
1 kg = 10³ g
