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andreev551 [17]
3 years ago
14

Which one has no nucleus?

Chemistry
1 answer:
maksim [4K]3 years ago
3 0

Answer: B, red blood cells

Explanation:

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The probability that it will rain tomorrow is 11/15. What is the probability that it will not rain ?
WINSTONCH [101]

Answer:

4/15

Explanation:

15/15 - 11/15 = 4/15

If 11/15 is the probability that it'll rain tomorrow, then the rest should be the probability that it'll not rain tomorrow.

6 0
3 years ago
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indicate whether the entropy of the system increases or decreases. Mixing 10 mL of 90.0 °C water with 10 mL of 10 °C water. The
Ivanshal [37]

Answer:

When the water is mixed with water at lower temperature the effective temperature of the system (i.e the water at lower temperature) will increase, thereby increasing it's entropy

Explanation:

The answer that "the entropy will is increases" is correct as:

The water at 90° C i.e at higher temperature is mixed with the water at 10° C i.e the water at the lower temperature.

The water at lower temperature will have molecules with lower energy while the water with higher temperature will have molecules undergoing high thermal collisions. Thereby, when the water is mixed with water at lower temperature the effective temperature of the system (i.e the water at lower temperature) will increase, thereby increasing it's entropy.

Therefore, the answer is correct with respect to the water at lower temperature.

Meanwhile, for the water at higher temperature , the temperature of the system will decrease. Thus, the entropy of the water at higher level will decrease.

5 0
4 years ago
Convert 7.50 grams of glucose C6H12O6 to moles
Anna [14]

Answer:

0.04167mole

Explanation:

To convert gram to mole,

C6H12O6

C - 12

H - 1

O - 6

There are 6 moles of C, 12 mole of H and 6 mole of O

Therefore, multiply each number of mole by the mass of each element

C - 12 * 6 = 72

H - 1 * 12 = 12

O - 16 * 6 = 96

The molar mass of C6H12O6 = 72 + 12 + 96

= 180g/mol

Dividing the number of mass by the mm

= 7.50g / 180g/mol

= 0.04167 mole

4 0
4 years ago
At a temperature of 393 K, the temperature of a sample of nitrogen is 1.07 atm what will the pressure be at a temperature of 478
torisob [31]
The answer would be B I just took the test
5 0
3 years ago
In the heat equation, what does Q represent? heat required to raise the temperature specific heat of the substance mass of the s
MaRussiya [10]

Answer: heat required to raise the temperature

Explanation: Heat equation is represented as:

Q= m\times c\times \Delta T

Q= heat required to raise the temperature

m= mass of the substance

c = heat capacity of substance    

\Delta T={\text{Change in temperature}}


7 0
4 years ago
Read 2 more answers
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