Answer: D
Explanation: both experimentation and observation
Answer:
The answer is "Choice A".
Explanation:
In this question, the choice A is wrong because when the copper panels on houses produce a patina (copper oxide) through occur as a consequence of reactions from oxygen and water in the air, these reaction does not have low activation energy because lower activation energy that is stored in a faster response rate.
Answer:
d , before the molten rock becomes lava, it is first magma, and most people know that lava is ejected from volcanoes
Answer:
The answer is
<h2>1.45 g/mL</h2>
Explanation:
The density of a substance can be found by using the formula

From the question
mass of material = 5.01 g
volume = 3.46 mL
The density of the material is

We have the final answer as
<h3>1.45 g/mL</h3>
Hope this helps you