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Neko [114]
3 years ago
6

The nucleus of the eukaryotic cell is important because it

Chemistry
1 answer:
Marina86 [1]3 years ago
6 0

For this question I think the answer is C.

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s sample of thorium-234 has a half life of 25 days. will all the thorium undergo radioactive decay in 50 days?
Assoli18 [71]

Answer:

25% thorium will left after 50 days.

Explanation:

Half life:

A nuclear half is the time period of radioactive material in which its amount remain halved.

In given question it is stated that the half life thorium-234 is 25 days. Which means after passing the 25 days the amount of thorium must be halved of original amount.

For example,

If the original concentration was 100%, than after 25 days it will be 50%.

After 50 days amount of thorium left:

Number of half life = T (elapsed) / T half life

Number of half life = 50/25

Number of half life =  2

At first half life amount of thorium left = 100/2 = 50

After second half life amount of thorium left = 50/2 = 25

Total amount decayed = 50+25 = 75

Amount left after 50 days = 100-75 = 25

25% thorium will left after 50 days.

5 0
3 years ago
Plz answer fast Name the four parts of a circuit.
nignag [31]

Answer:

A switch

Battery or cell

Resistor

Rheostat

Appliance or load such as bulb

connecting wires.

Jockey

Inductor

Capacitor

Meter bridge

Potentiometer

Voltimeter

Ammeter

Galvanometer

5 0
3 years ago
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A goup of cells that work together to perform a specific function.
algol13

Answer:

Cell Differentiation and Tissue.

Explanation:

tissues are organized communities of cells that work together to carry out a specific function.

4 0
2 years ago
What are the three states in which most matter occurs
Mrrafil [7]
Solid, liquid, and gas.
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What particle has a positive electrical charge and is found in the nucleus?
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Electron is the answer
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