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Ivan
3 years ago
10

A sodium atom has a mass number of 23. Its atomic number is 11. How many electrons does a neutral sodium atom have?

Chemistry
1 answer:
NemiM [27]3 years ago
4 0

Answer:

it contains 11 electrons

Explanation:

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_C4H6O3 + _H2O −−→ _C2H4O2<br><br> A) 1, 1, 2<br> B) 2, 1, 1<br> C) 2, 1, 2<br> D) 2, 2, 1
seraphim [82]

Explanation:

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8 0
2 years ago
A square table has an area of 400 square feet. They want to cut the table into two equal rectangles. If they cut the table in ha
Orlov [11]

Answer:

b=200

l=100

Explanation:

so since it is a square all sides would be equal

when you cut the square vertically the dimensions will change

the bredth would be same that is 200

but the length would be half that is 100

7 0
3 years ago
Current Question:
IRISSAK [1]

Answer:

0.2g

Explanation:

All radiodecay follows the 1st order decay equation

A = A₀e^-kt

A => Activity at time (t)

A₀ => Initial Activity at time = 0

k => decay constant for isotope

T => time in units that match the decay constant

Half-Life Equation => kt(½) = 0.693 => k = 0.693/34 min = 0.0204min¹

A = A₀e^-kt  = (26g)e^-(0.0204/min)(238min) = (26g)(0.0078) = 0.203g ~ 0.2g (1 sig fig).

7 0
2 years ago
When swimmers push against the wall of a pool with their feet, they are pushed away from the wall. Which of Newton's laws explai
Alecsey [184]

It would be his third law

8 0
2 years ago
When comparing plant and animal cells which statement is least accurate?
IrinaK [193]
Here is a diagram comparing both plant and animal cells.
Hope it helps:)

8 0
2 years ago
Read 2 more answers
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