Chemical potential energy
Answer:
A. The color change from blue to green happens in nature.
Explanation:
The color change is an indicator of a chemical reaction that has occurred. Although color changes are not necessarily good diagnostic tool to measure if a chemical reaction has occurred or not.
- In this reaction, color changes is quite an effective tool
- Chemical changes usually involves the formation of a new product from the chemical reaction.
- Also, the steps are not easily reversible.
- For this reaction, color change is the most appropriate signal for a chemical change.
Answer:
Explanation:
Hello,
In this case, considering the given specific gravity we are to compute the density of the 64% HNO3 solution:
In such a way, since the given solution of nitric acid is 64 % by mass, we've got:
Thus, by using the previously computed density and the molar mass of HA (90.2 g/mol) we can compute the required molar concentration as follows:
Regards.
Neither F2 nor Br2 are polar because they are nonpolar. It is a good rule of thumb to know that any diatomic molecules like F2 or Br2 are always going to be nonpolar. Another way to determine this is to use the acronym SNAP ( symmetrical=nonpolar, asymmetrical=polar). Since both F2 and Br2 are symmetrical molecules, they must be nonpolar.
I hope this helps.
Balanced equation
2Al(ClO₃)₃ + 3BaSO₄⇒ Al₂(SO₄)₃ + 3Ba(ClO₃)₂
<h3>Further explanation</h3>
Given
Word equation
Required
Chemical equation
Solution
Chemical equations can be expressed in
- word equation
- skeleton equation
- balanced equation
Aluminum chlorate = Al(ClO₃)₃
Barium sulfate = BaSO₄
Aluminum sulfate = Al₂(SO₄)₃
Barium chlorate = Ba(ClO₃)₂
Al(ClO₃)₃ + BaSO₄⇒ Al₂(SO₄)₃ + Ba(ClO₃)₂
2Al(ClO₃)₃ + 3BaSO₄⇒ Al₂(SO₄)₃ + 3Ba(ClO₃)₂
