Answer:
answer #1 used throughout the world to power devices, appliances and methods of transportation utilized in daily life. To make things operate, electrical energy must be emitted from energy sources such as power plants, to enable an object to consume the power it needs to function. ((if you want to cut it down short use the two first sentences))
answer #2 We get solar heat energy from the sun, and sunlight can also be used to produce electricity from solar
Explanation:
Answer:
A. Compounds
Explanation:
Firstly, don't let the word "pure" confuse you; this is pretty much irrelevant to the question.
The key to answering this question lies in "substance" and "more than one type of element chemically bonded."
Something you ought to memorize is that a substance is either an element or compound. Therefore, you can eliminate choices B./C.
Next, use the part of the definition that says "more than one type of element chemically bonded" to conclude that it's a compound. Not only is this the definition of a compound, but the fact that is says <em>more than one type of element</em> should automatically tell you that it is different from just a regular element (Choice D.).
Although there isn’t a picture a graph can be misleading when it doesn’t start at zero, it doesn’t give accurate information, it skips too many numbers, the vertical scale is too big or too small. Hope this helps
The products : Zn₃(PO₄)₂ (s) + KClO₃ (aq)
<h3>Further explanation</h3>
Given
reaction: Zn(ClO₃)₂ (aq) + K₃PO₄ (aq)
Required
The products
Solution
Double-Replacement reactions : an ion exchange between two ion compounds in the reactant to form two new ion compounds in the product
General formula :
AB + CD ⇒ AD + CB
One of the characteristics of the double replacement reaction is the presence of precipitated compounds
Zn(ClO₃)₂ (aq) + K₃PO₄ (aq) ⇒ Zn₃(PO₄)₂ (s) + KClO₃ (aq)
Zn₃(PO₄)₂ (s)⇒ precipitated compounds, so that this reaction can occur
Answer:
A river flowing at a certain speed comprises kinetic energy as water has certain velocity and mass
Explanation:
