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GrogVix [38]
3 years ago
6

**PLEASE HELP** If you were presented with a preserved brain specimen, but weren’t told whether it was from a human or a sheep,

how would you determine which animal it was from? Describe at least three differences you would use to help determine your answer.
Chemistry
1 answer:
Gemiola [76]3 years ago
3 0

Answer:

size-humans brains are usually larger than animals, shape-some animal brains are shaped very odd, and the cerebrum-that is the part of the brain that makes us human.

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A scientist collects 0.24 mole of hydrogen gas in a balloon. The temperature of the hydrogen is 35 degrees Celsius, and the pres
slava [35]

Answer:

             5.77 L

Solution:

Data Given:

                Moles  =  n  =  0.24 mol

                Temperature  =  T  =  35 °C + 273  =  308 K

                 Pressure  =  P  =  1.05 atm

                 Volume  =  V  =  ?

Formula Used:

Let's assume that the hydrogen gas in balloon is acting as an Ideal gas, the according to Ideal Gas Equation,

                 P V  =  n R T

where;  R  =  Universal Gas Constant  =  0.082057 atm.L.mol⁻¹.K⁻¹

Solving Equation for V,

                 V  =  n R T / P

Putting Values,

                 V  =  (0.24 mol × 0.082057 atm.L.mol⁻¹.K⁻¹ × 308 K) ÷ 1.05 atm

                 V  = 5.77 L

6 0
4 years ago
If 3.06 grams of ammonia (NH₃) react with 0.0350 moles of chromium (III) nitrate as noted by the following equation, what is the
Lady bird [3.3K]
What is the answer to this question
3 0
3 years ago
If you have 8.45 x 10^27 molecules of H2O, how many moles of water do you have?
il63 [147K]

Answer:

<h3>The answer is 14036.54 moles</h3>

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

n =  \frac{N}{L} \\

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question

N = 8.45 x 10^27 molecules of H2O

We have

n =  \frac{8.45 \times  {10}^{27} }{6.02 \times  {10}^{23} }  \\  = 14036.544850...

We have the final answer as

<h3>14036.54 moles</h3>

Hope this helps you

7 0
3 years ago
The strongest energy waves that the Sun emits are _____. gamma rays ultraviolet rays microwaves infrared rays
nirvana33 [79]

Gamma rays

gamma rays has shortest wavelength which emits from the sun so it has highest energy because energy and wavelength are inversely proportional to each other.

8 0
4 years ago
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Electric current is the flow of particles with ________. a. Negative charge b. Positive charge c. Both positive and negative cha
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I believe Positive & Negative
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