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bixtya [17]
3 years ago
15

What is the atomic number and the mass number of an atom with 11 protons and 12 neutrons?

Chemistry
1 answer:
sleet_krkn [62]3 years ago
8 0

Answer:

e

Explanation:

e

e

e

e

ee

e

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If the take off velocity of an airplane on a runway is 300 km /hr with an acceleration of 1 m/s2. What is the take off time of t
Rama09 [41]
<h3>Answer:</h3>

83.33 seconds.

<h3>Explanation:</h3>

<u>We are given;</u>

  • Take off velocity as 300 km/hr
  • Acceleration as 1 m/s²

We are required to calculate the take off time of the airplane.

<h3>Step 1: Convert velocity from km/hr to m/s </h3>

We are going to use the conversion factor.

The conversion factor is 3.6 km/hr per m/s

Therefore;

Velocity = 300 km/hr ÷ 3.6 km/hr per m/s

             = 83.33 m/s

<h3>Step 2: Calculate the take off time</h3>

We know that;

v = u + at

where, u is the initial velocity, v the final velocity, a the acceleration and t is time.

But, initial velocity is Zero

Therefore;

83.33 m/s = 1 m/s² × t

Thus;

time = 83.33 m/s ÷ 1 m/s²

       = 83.33 seconds

Therefore, the take off time is 83.33 seconds.

5 0
3 years ago
What is the name of the molecule shown below?
mamaluj [8]

Answer:

2-Octene

Explanation:

A P E X

3 0
3 years ago
Read 2 more answers
Gravitational potential energy depends on the strength of gravity, ________ and ________ of the object.
tiny-mole [99]

Answer: A.

Explanation:

Gravitational potential energy is due to the position of an object above Earth's surface. The object has the potential to fall due to gravity. Gravitational potential energy depends on an object's weight and its height above the ground (GPE = weight x height).

Weight= Mass

Height= Height

Hope this helps!

5 0
3 years ago
Question 1
luda_lava [24]

Answer : The name of the given hydrocarbon is, pentane.

Explanation :

The basic rules for naming of organic compounds are :

  • First select the longest possible carbon chain.
  • For the number of carbon atom, we add prefix as 'meth' for 1, 'eth' for 2, 'prop' for 3, 'but' for 4, 'pent' for 5, 'hex' for 6, 'sept' for 7, 'oct' for 8, 'nona' for 9 and 'deca' for 10.
  • A suffix '-ane' is added at the end of the name of alkane.
  • If two of more similar alkyl groups are present, then the words 'di', 'tri' 'tetra' and so on are used to specify the number of times these alkyl groups appear in the chain.

In the given hydrocarbon, the longest possible carbon chain number is 5 that means we add prefix 'pent' and suffix '-ane'. So, the name of given hydrocarbon will be, pentane.

Hence, the correct option is, pentane.

4 0
3 years ago
At what temperature Kelvin would
Hatshy [7]

Answer:

The temperature would be 304, 87 K

Explanation:

We use the formula PV= nRT:

T= PV/nR = 1,00 atm x 100L /4,00 mol x 0,082 l atm/K mol=<em>304, 87 K</em>

6 0
3 years ago
Read 2 more answers
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