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inessss [21]
3 years ago
7

An iron atom has an atomic mass of 56. Its atomic number is 26. How many neutrons does the iron atom have?

Chemistry
1 answer:
Ghella [55]3 years ago
8 0

Answer:

30

Explanation:

atomic mass = proton number + neutron number

proton number is also atomic number

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Why do molecules combined into chains?
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3 years ago
How are genetic engineering and artificial selection similar?
adelina 88 [10]

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both genetic engineering and artificial selection allow humans to change a species so that its member are better suited for human needs. artificial selection selects for traits already present in a species, whereas genetic engineering creates new traits.

Explanation:

7 0
2 years ago
9474 millimeters to centimeters using scientific notation showing work
puteri [66]

Answer:

9.474 x 10^2

Explanation:

ok. first you have to get the value in the required unit so 9474mm/(10mm/cm) = 947.4 so scientific notation states that the number must be raised to any power of an integer and the value of the number being raised must be less than than 10 and more than or equal to 1

so it must have one digit in front so.. 947.4 becomes 9.474 and because you move 2 places to the left, ur power is positive 2

and proof 10^2 is 100 so multiply 9.474 by 100 and u will get 947.4 cm which is also 9474 mm

8 0
3 years ago
Which would have more mass: a mole of sodium or a mole of copper? How do you know?
bearhunter [10]

Answer:

copper

Explanation:

so for this you can work out the mass for both and compare

so mass = moles × mr

so mass of sodium = 1 × 23= 23 g

and mass of copper = 1 × 63.5= 63.5 g

so copper have more mass :)

5 0
3 years ago
Cubic zirconia is a substance produced in a laboratory. It looks nearly identical to a diamond. Why is it not a mineral?
Lana71 [14]

Answer:

it is not naturally occuring

5 0
3 years ago
Read 2 more answers
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