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nekit [7.7K]
3 years ago
13

If Hershey and Chase had used radioactive oxygen in their experiments instead of phosphorus and sulfur, what results would they

have likely obtained?
a. They would have observed a radioactive signal in both the pellet and the liquid.
b. They would have not observed radioactivity anywhere.
c. They would have observed a radioactive signal in the pellet only.
d. They would have observed a radioactive signal in the liquid only.
Chemistry
1 answer:
Pepsi [2]3 years ago
8 0

Answer:

A. They would have observed a radioactive signal in both the pellet and the liquid.

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An atom of gold has a mass of 3.271 X 10-22 g. How many atoms of gold are in 5.00 g of gold? (Give your answer in scientific not
Kobotan [32]

Answer:

1.53 × 10²² atoms Ag

Explanation:

Step 1: Define conversions

3.271 × 10⁻²² g = 1 atom

Step 2: Use Dimensional Analysis

5.00 \hspace{3} g \hspace{3} Ag(\frac{1 \hspace{3} atom \hspace{3} Ag}{3.271(10)^{-22} \hspace{3} g \hspace{3} Ag} ) = 1.52858 × 10²² atoms Ag

Step 3: Simplify

We have 3 sig figs.

1.52858 × 10²² atoms Ag ≈ 1.53 × 10²² atoms Ag

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Answer:

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Explanation:

Mass of water = m = 2.5\times 10^{18} g

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So, there are 1.39\times 10^{17} moles of water in 2.5\times 10^{18} g of water.

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What is the ability to transfer thermal energy to something else
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.Heat energy can be transferred from one object to another. The transfer or flow due to the difference in temperature between the two objects is called heat.

Explanation:

The transfer of thermal energy is called heat. In this process, thermal energy moves through a substance.  For example, an ice cube has heat energy and so does a glass of lemonade.

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