Hey There!:
The density is the quotient between the mass of a material and the volume occupied by it, The density can be expressed for a substance or for a mixture of substances. For example, water density in ambient conditions is equal to 1.00 g/cm3, which means that in 1 cm³ or 1 mL, there are 1.0 g of water. Therefore:
D = m / V
D = 20 g / 5 mL
D = 4,0 g/mL
hope that helps!
For the first one I think it’s A, and I think the second one is C. Those seem most logical.
Answer:
Explanation:
acid gain electron and base loses electrons.
Answer:
melting from ice cube to water
Explanation:
this is because the object gains heat and melting occurs in the object
