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Eduardwww [97]
3 years ago
14

Why are viruses called obligate intracellular parasites?

Chemistry
1 answer:
g100num [7]3 years ago
5 0
Because they cannot survive long outside a living host cell.
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If a person is sterile, he or she is:
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1

Explanation:

Sterile means sperm or eggs are not able to Technichaly Create or produce.

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What is the percent composition of a solution in which 480 grams of sodium chloride, NaCl, is dissolved in 4 liters of solution.
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3 years ago
What types of questions can be answered through science and what questions are beyond the boundaries of science? Be specific and
Anna [14]
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3 0
3 years ago
If irons temperature goes from 50c to 75c in a 20g sample, how many joules of heat were used?
Marina CMI [18]

Answer:

Option D. 230 J

Explanation:

We'll begin by calculating the temperature change of the iron. This can be obtained as follow:

Initial temperature (T₁) = 50 °C

Final temperature (T₂) = 75 °C

Change in temperature (ΔT) =?

ΔT = T₂ – T₁

ΔT = 75 – 50

ΔT = 25 °C

Thus, the temperature change of the iron is 25 °C.

Finally, we shall determine the amount of heat energy used. This can be obtained as follow:

Mass (M) = 20 g

Change in temperature (ΔT) = 25 °C

Specific heat capacity (C) = 0.46 J/gºC

Heat (Q) =?

Q = MCΔT

Q = 20 × 0.46 × 25

Q = 230 J

Thus, the amount of heat used was 230 J

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3 years ago
Two students make a model of a tree house they want to build. the scale is 1:42 in the scale model the tree house door is 3 cm t
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Answer:126

Explanation:

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3 years ago
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