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nekit [7.7K]
3 years ago
15

2. Give two examples of forces you exerted on objects today. What factors were different about

Chemistry
1 answer:
nydimaria [60]3 years ago
3 0
Pushing a cart and hitting a ball
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When Thomas Edison first sold electricity, he used zinc coulometers to measure charge consumption. (In a coulometer the cathode
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Answer:

The answer is "42537.93 \ C".

Explanation:

Molar mass : Z_n = 65.38 \ \frac{g}{mol}\\\\

\to Zn^{2+} + 2e^{-} = Zn\\\\

\therefore\\\\ \to 65.38 \ g \ of\  Z_n  \ require: \\\\ \to 2 \times 96500\  C\\\\\to 14.41 \ g\  require,\\\\ \to \frac{(14.41 \times 2 \times 96500)}{65.38} \ \frac{g}{mol} = 42537.93 \ C

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Which of the following is an example of a way you can reduce personal consumption of resources?
dsp73

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B. using efficient light bulbs

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Question 4 Leave the rocks submerged in the jars for about 90 minutes. Then use a spoon to carefully scoop the rocks from the ja
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did you get the answer for it?

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Why are the elements placed in specific places on the periodic table? 2. periods are rows that run from left to right . 3. eleme
Marizza181 [45]

The elements are placed in specific places on the periodic table based on their atomic number and outer electronic configuration which gives them certain properties.

The elements of same groups have same number of valence electrons.

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An atom that has 84 protons and 86 neutrons undergoes a reaction. At the end of the reaction, it has 82 protons and 84 neutrons.
mr_godi [17]
<span>During a nuclear reaction, an atom must emit an alpha particle, which consists of 2 protons (positively charged) and 2 neutrons (neutrally charged). Thus, the alpha particle has a charge of +2 (there are no electrons, which are negatively charged, to balance out the two protons). When an atom emits an alpha particle, it will lose this particle, thus losing 2 protons and 2 neutrons as well. Since the atom in the equation goes from 84 protons to 82, and 86 neutrons to 84, it lost 2 protons and 2 neutrons, indicating that it emitted an alpha particle.</span>
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