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DochEvi [55]
3 years ago
5

What is the difference between atomic absorption and atomic emission? What is given off as a result? Finally, which

Chemistry
1 answer:
Slav-nsk [51]3 years ago
8 0

Je suis désolé je ne parle pas anglais peux-tu le dire en français
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which of the following substances is least able to cross the blood-brain barrier.)a. waterb. sodium ionsc glucosed. white blood
ivolga24 [154]

Answer:

d. white blood cells

Explanation:

It is the white blood cells that have the least tendency to cross the blood- brain barrier.

Blood- brain barrier is psychological barrier and restricts substances that circulate into the blood from crossing over the central nervous system.

Water, glucose as well as sodium ions can easily cross the barrier. As these are good for body supply energy to the brain.

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3 years ago
The graph above shows how the price of cell phones varies with the demand quantity. The equilibrium price for cell phones is ___
elena-s [515]

It's this one $100, 5,000

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3 years ago
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What is the correct classification of a mixture in which both a solid and liquid are visible?
Setler [38]

The answer is D.

"a heterogeneous mixture and a suspension"

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3 years ago
How many moles are in 47.5 g of Ca?<br> A.2.85 e 25<br> B.1.18 mol<br> C. 7.89 e-23<br> D.1900 mol
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3 0
3 years ago
A frisbee is moving at 11 m/s and has 3.6j of energy. how much does it weigh?
Ber [7]

Answer:

0.06 kg

Explanation:

Given data:

Mass of frisbee = ?

Velocity of frisbee  = 11 m/s

Energy of frisbee = 3.6 j

Solution:

K.E = 1/2 mv²

Now we will put  the values in this formula.

3.6 J = 1/2 m(11m/s)²

3.6 j = 0.5 ×121m²/s² × m

3.6 j = 60.5 m²/s² × m

m = 3.6 j/60.5 m²/s²

m= 0.06 j.m⁻².s²

j = Kg.m².s⁻²

m= 0.06 Kg.m².s⁻² .m⁻².s²

m = 0.06 kg

7 0
3 years ago
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