Answer:
4
Explanation:
the actual change in phase is 4 on the diagram
Note that the density of pure aluminum is 2.7 g/cm³ (from tables).
Given:
m = 39.0 g, the mass of the metal
V = 10.0 cm³, the density of the metal
By definition, the density of the metal is
density = mass/volume
= (39.0 g)/(10.0 cm³)
= 3.9 g/cm³
Answer:
The calculated density is not equal to 2.7 g/cm³, therefore the metal sphere is not made of pure aluminum.
70 bags is the answer.
They add “They put 7 pieces of candy in each bag to throw you off”
To find the answer just divide 28 bags by 4 days to get how many bags they make in 1 day. Take that number “7” and multiply it by 10 days. The answer is then 70.
1.Sodium metal reacts rapidly with water to form a colorless solution of sodium hydroxide ... strip is placed in a test tube containing 5 mL of hydrochloric acid, HCl. Both liquids ... If it fizzes and bubbles
2.When salt is mixed with water, the salt dissolves because the covalent bonds of water are stronger than the ionic bonds in the salt molecules.
3.When platinum is heated, then cooled to its original state, we say this is a physical change. 19. ... Scratches glass. Sour taste ... A bar of lead is more easily bent than is a bar of aluminum of the same size.
Density = mass / volume
8.96 = m / 7.00
m = 8.96 x 7.00
m = 62.72 g
