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Artist 52 [7]
3 years ago
6

What important information did Ernest Rutherford discover about the atom?

Chemistry
1 answer:
alexandr1967 [171]3 years ago
8 0
He discovered and named the atomic nucleus, the proton, the alpha particle, and the beta particle.
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Which of the following is true for the theoretical yield of a reaction? (1 point)
just olya [345]

Answer:

It is always twice the value of the actual yield.

Explanation:

3 0
2 years ago
A student practicing for a track meet ran 300 meters in 30 seconds. what was her average speed?​
ololo11 [35]

Answer:

<h2>10 m/s</h2>

Explanation:

Her average speed can be found by using the formula

v =  \frac{d}{t}  \\

d is the distance

t is the time taken

From the question we have

v =  \frac{300}{30}  = 10 \\

We have the final answer as

<h3>10 m/s</h3>

Hope this helps you

7 0
3 years ago
Which has the greater concentration of hydrogen ions, a substance with a pH of 5 or a substance with a pH of 4?
evablogger [386]

Answer:

pH 4

Explanation:

Firstly, we define pH as the negative logarithm to base 10 of the concentration of hydrogen ions.

Mathematically, we express this as:

pH = -log[H+]

Now let’s us calculate the concentration of hydrogen in each of the pH

For pH 4, we have:

4 = -log[H+]

[H+] = -Antilog(4)

[H+] = 0.0001M

For pH 5,

[H+] = -Antilog(5)

[H+] = 0.00001M

We can see that 0.0001 is greater than 0.00001 and thus it has a greater concentration of hydrogen ions

4 0
3 years ago
If gravity ceased to exist on Earth, what would happen to our life supporting atmosphere ?
melamori03 [73]
C is correct. right now gravity holds the atmosphere so if there is no gravity then no atmospher
4 0
3 years ago
He structure of the product, C, of the following sequence of reactions would be:
NikAS [45]

Answer:

I

Explanation:

The complete question can be seen in the image attached.

We need to understand what is actually going on here. In the first step that yields product A, the sodamide in liquid ammonia attacks the alkyne and abstracts the acidic hydrogen of the alkyne. The second step is a nucleophilic attack of the C6H5C≡C^- on the alkyl halide to yield product B (C6H5C≡C-CH3CH2).

Partial reduction of B using the Lindlar catalyst leads to syn addition of hydrogen to yield structure I as the product C.

5 0
3 years ago
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