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yarga [219]
3 years ago
11

Selected Answer: alpha particle

Chemistry
1 answer:
Lostsunrise [7]3 years ago
3 0

Answer:

positron

Explanation:

A positron is a particle produced when a proton is transformed into a neutron. Anti neutrinos are ejected from the nucleus to balance spins.

Positron emission increases the Neutron/Proton ratio. When a nuclide undergoes positron emission, the atomic number of the daughter nucleus is one unit less than that of the parent nucleus hence it is found one place before its parent in the periodic table.

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Lead (Pb) is used to make a number of different alloys. What is the mass of lead present in an alloy containing 0.15 mol of lead
Vesna [10]
Lead is 207.2 g/mol.
0.15 mol (\frac{207.2g}{mol}) = 31.08 g Pb
3 0
3 years ago
(6.21×10^3)(0.1050) <br><br>(Scientific Notation)
mel-nik [20]
6.21 x 10^3 = (Move decimal point 3 spaces to the right)

6210

6210 (0.1050)

652.05
3 0
3 years ago
The type of reaction represented by the following equation is...
tatiyna

Answer:

I think it's C but I'm atlessy 60% sure :]

7 0
3 years ago
FOR BRAINLY..
Angelina_Jolie [31]

<u>Answer: </u>

Phases of moon:

  • New Moon
  • crescent Moon
  • First-quarter Moon
  • gibbous Moon
  • full Moon

<u>Explanation:</u>

The lunar cycle has 8 phases. The first phase is new moon. New moon is seen while the moon lies between the sun and the earth. After few days occurs the crescent moon when the moon travels towards its east. The next phase is first-quarter phase. During this phase half of the moon will be illuminated. The fourth phase is waxing gibbous moon phase where waxing refers to 'growing larger' and gibbous means 'shape' hence waxing gibbous refers to growing shape. Next is the full moon phase. This happens  when the moon and the sun comes on the opposite sides of our earth. The next phase will be waning gibbous moon where the moon decreases in size. This phase is followed by third quarter and finally the waning crescent moon phase.

8 0
3 years ago
How long can a sunflower grow? Hypothesis
Ghella [55]

Answer:

Up to 80 - 120 days.

Explanation:

The flower will probably stay six to twelve days or so.

I'm not sure what's your hypothesis going to be, but I'll give you an example.

" <em>If</em>  I __________, <em>then</em> the sunflower will grow up to 80 to 120 days."

In the blank space, you can write what you're going to do to your sunflower during the experiment.

Please correct me if I'm wrong.

5 0
3 years ago
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