Which is true about carbon-12 compared with carbon-13

Answers

Answer 1

Answer: e mass number of any given atom depends solely on the number of protons and neutrons in its nucleus. The mass number of any atom can be determined by adding the number of protons and neutrons. (Mathematically this is stated as Mass Number = Protons + Neutrons). For instance, a Carbon atom with 6 protons and 6 neutrons will have a mass number of 12AMU. However, a Carbon atom with 6 protons and 8 Neutrons will have a mass number of 14AMU. They are both Carbon atoms, however they each have a different mass number. Atoms of the same element that have different numbers of neutrons, and therefore, different mass numbers, are called isotopes. Isotopic symbols are used to indicate isotopes of the same elements. In the following isotopic symbols the lower number is the atomic number…it is the number of protons. The upper number is the mass number, it represents to sum of the protons and neutrons in the atoms nucleus.

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What is the process by which light energy from the sun is converted to food?

Answers

The process is called photosynthesis the process of when a plant makes it's food using sunlight.

Photosynthesis is the process by which light energy from the sun is converted to food.

Group__ contains elements like fluorine chlorine bromine iodine and astatine

Answers

Group 17 or vii contain element like fluorine, chlorine, bromine, iodine and astatine

explanation

Group 17 element in periodic table are referred to as halogen.
They have 7 valence electron
They are highly reactive
Have a low melting and boiling point but increases down the group
They have a tendency to form salt
There electronegativity decreases down the group.

In a grassland ecosystem, if the pollution of eagles suddenly decreased, what will most likely be the effect on the rest of the ecosystem.A. The ecosystem will become overpopulated with snakes.

B. There will be a decrease in the population of snakes in the ecosystem.

C. The nutrition of the soil in the ecosystem will decrease.

D. More type of plants will begin growing in the ecosystem.

Answers

A, because if there are less Eagles in a ecosystem, then there would be more snakes because they wouldn't be eaten.

Q2. In a 4x100 mrelay race, total track length is 200m and time taken by one particular group is 50.2 s. What is
the average speed and average velocity of that group?

Answers

A " 4 x 100 m " race means that four runners each run 100 meters, for
a total of 400 meters ... very close to a quarter mile.

On a 200-meter track, each runner does halfway around the track, and
the whole team of four runners does twice around the track.

This team did the whole thing in 50.2 seconds. The average time for each runner
was 50.2/4 = 12.55 seconds.
The average speed of each runner was (400 meters)/(50.2 seconds) = 7.968 m/s .

Velocity is a speed and a direction. We have the speed, leaving only the puzzle of
what to do about the 'average' direction.

Here's a sneaky but easy way to dispense with the whole issue:
Define the average velocity (vector) as (total displacement vector)/(total time).

Since the fourth runner finished in exactly the same spot as the first runner
began, the total displacement is zero, and therefore so is the average velocity.

Which of the following is not needed to make a model of the water cycle?

Answers

grass.. dirt... land things

Answer:

The answer is a drain

What causes rocks to change composition when reacting with oxygen?
Please help!!

Answers

Acid reactions and oxidation

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Which two body systems work together closely to produce movement in human limbs