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miskamm [114]
3 years ago
7

Which kind of energy transformation occurs during skydiving?

Chemistry
2 answers:
nikitadnepr [17]3 years ago
5 0

First it is gravitational energy, then it changes to Kinetic energy during the fall.

vredina [299]3 years ago
5 0

2nd one gravitational to kinetic

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Write the TOTAL IONIC EQUATION between zinc and hydrochloric acid.
Andreyy89

Answer : The net ionic equation will be,

Zn(s)+2H^+(aq)\rightarrow Zn^{2+}(aq)+H_2(g)

Explanation :

In the net ionic equations, we are not include the spectator ions in the equations.

Spectator ions : The ions present on reactant and product side which do not participate in a reactions. The same ions present on both the sides.

The balanced ionic equation between zinc and hydrochloric acid will be,

Zn(s)+2HCl(aq)\rightarrow ZnCl_2(aq)+H_2(g)

The ionic equation in separated aqueous solution will be,

Zn(s)+2H^+(aq)+2Cl^-(aq)\rightarrow Zn^{2+}(aq)+2Cl^-(aq)+H_2(g)

In this equation, Cl^- is the spectator ion.

By removing the spectator ion from the balanced ionic equation, we get the net ionic equation.

The net ionic equation will be,

Zn(s)+2H^+(aq)\rightarrow Zn^{2+}(aq)+H_2(g)

8 0
4 years ago
The weight of a table as measured by a student is 20 kg.The
miskamm [114]
(20/23) times 100 is 87%

now the answer asks for percentage ERROR

100-87 =13

so answer is C
7 0
3 years ago
Read 2 more answers
SrCl2 + 2AgNO3 reaction is what
slava [35]

Answer:

SrCl2 + 2AgNO3 ----> Sr(NO3)2 + 2AgCl (solid)

Explanation:

SrCl2 + 2AgNO3 ----> Sr(NO3)2 + 2AgCl (solid)

4 0
4 years ago
What causes a top to stop spinning?
lina2011 [118]
Tops stops spinning because it doesn't have energy or ran out of force for example when you spin a top you give force to it then after 30 sec it going to stop going slower and slower that Is losing energy that's how tops stops spinning
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3 years ago
Which of these is a pure substance and why? A Milk, because every portion of the matter is the same, and its components can only
Maslowich

Answer:

d carbon dioxide

Explanation:

Carbon dioxide is a pure substance that is a compound (two or more elements bonded together).

7 0
3 years ago
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