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pishuonlain [190]
3 years ago
6

All organisms have the same number of cellsA. trueB. false​

Chemistry
2 answers:
denis-greek [22]3 years ago
8 0
The answer is B because not all organisms have the same number of cells
MakcuM [25]3 years ago
4 0

B. false is the answer of this question

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5. A 5.00 g sample of an unknown substance was heated from 25.2 C to 55.1 degrees * C , and it required 133 to do so. Identify t
Leviafan [203]

Answer:

Aluminum

Explanation:

Given

T_1 = 25.2^oC

T_2 = 55.1^oC

m = 5.00g

\triangle Q= 133J

<em>See attachment for chart</em>

Required

Identify the unknown substance

To do this, we simply calculate the specific heat capacity from the given parameters using:

c = \frac{\triangle Q}{m\triangle T}

This gives:

c = \frac{\triangle Q}{m(T_2 - T_1)}

So, we have:

c = \frac{133J}{5.00g * (55.1C - 25.2C)}

c = \frac{133J}{5.00g * 29.9C}

c = \frac{133J}{149.5gC}

c = 0.89\ J/gC

From the attached chart, we have:

Al(s) = 0.89\ J/gC --- The specific heat capacity of Aluminum

<em>Hence, the unknown substance is Aluminum</em>

7 0
3 years ago
What is Newton's second law of motion ​
Rudiy27

Answer:

Newton's second law of motion is F = ma, or force is equal to mass times acceleration.

Explanation:

7 0
2 years ago
Read 2 more answers
According to the chart of specific heats, which material requires the most heat to raise its temperature from 10°C to 30°C?
myrzilka [38]

The material which requires the most heat to raise its temperature from 10°C to 30°C is oil.

<h3>What is the formula to calculate absorbed heat?</h3>

The formula which we used to calculate the amount of involved heat in relation with specific heat is:

Q = mcΔT, where

  • Q = absorbed heat
  • m = mass
  • c = specific heat
  • ΔT = change in temperature

Among the given materials, specific heat of oil is highest than other materials so will require maximum absorbed heat.

Hence, oil requires the most heat.

To know more about specific heat, visit the below link:

brainly.com/question/6198647

#SPJ1

8 0
2 years ago
Find density of nitrogen dioxide at 75*C and 0.805 atm.
Eva8 [605]

Answer:

1 (348) (D2) = 273 (2.05) (0.805) D2= 1.29 g/L

Explanation:

5 0
3 years ago
What role does the vulture playing this food web
musickatia [10]

Answer:

scavenger- eats dead carcasses

Explanation:

4 0
3 years ago
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