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Masteriza [31]
3 years ago
14

Who discovered the proton? Crookes Rutherford Balten Chadwick

Chemistry
1 answer:
Ronch [10]3 years ago
5 0

Answer:

Sir James Chadwick discovered proton  

Explanation:

Sir James Chadwick,  was a British physicist who was awarded the 1935 Nobel Prize in Physics for his discovery of the neutron in 1932. In 1941, he wrote the final draft of the MAUD Report, which inspired the U.S. government to begin serious atomic bomb research efforts.

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A sports car and a fully loaded semi truck pull side by side at a red light. Using your knowledge of acceleration, predict which
Len [333]
According to Newtons second law of motion:

a =  \frac{F}{m}

This shows, acceleration and mass are inversely proportional. So, larger the mass, less will be the acceleration produced and vice versa.

In case of a sports car and a fully loaded truck, the mass of truck is a lot more than the sports car. As a result the sports car will accelerate faster when the traffic light turns green.
7 0
3 years ago
A sample of carbon dioxide gas that has a volume of 14.6 L at STP contains how many
Nana76 [90]

Answer:

n = 0.651 mol

Explanation:

Given data:

Volume of CO₂ = 14.6 L

Temperature = standard = 273.15 K

Pressure = standard = 1 atm

Number of moles of CO₂ = ?

Solution:

The given problem will be solve by using general gas equation,

PV = nRT

P= Pressure

V = volume

n = number of moles

R = general gas constant = 0.0821 atm.L/ mol.K  

T = temperature in kelvin

by putting values,

1 atm × 14.6 L = n × 0.0821 atm.L/ mol.K   × 273.15 K

14.6 L. atm =  n × 22.43atm.L/ mol

n = 0.651 mol

7 0
2 years ago
Please help with this​
Mumz [18]

Answer:

4

Explanation:

Light refracts when it passes through something transparent at an angle so that eliminates the other 3.

or put differently

Light refracts whenever it travels at an angle into a substance with a different refractive index (optical density)

8 0
3 years ago
9. What lab equipment is used to spread heat when heating to prevent glassware from cracking
Lubov Fominskaja [6]
It's called ”wire gauze”, a metal mesh used with a ring clamp to support glassware over a Bunsen burner. Spreads flame out for more even heating rates.

5 0
3 years ago
3. Hydrochloric acid is used to clean metals.
ss7ja [257]
The answer to your question is option b, a base. This is because the question clearly tells you that one reactant is an acid. Then, it tells you that an acid plus something gives you a salt and water, as products

From background knowledge, we know that a base plus acid gives you a salt and water. The hydroxide ions from the base neutralise the hydrogen ions from the acid, which gives you water ( as it has a pH of 7).

Therefore, your answer is b, a base
4 0
3 years ago
Read 2 more answers
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