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Illusion [34]
3 years ago
10

When loading your sample onto the column, the solvent head should be about 0.5 cm below the top of the gel. A. True B. False

Chemistry
1 answer:
AysviL [449]3 years ago
8 0
B false because it says 0.5cm on top of gel
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3 years ago
The green areas on the diagram show the world's rainforests. What can you conclude about the location of rainforests?
Ber [7]

Answer:

Option A

They are located near the equator

Explanation:

From the diagram, we can observe that all the rain forest zones occur near the equator.

This is because on an annual basis, the equator receives the highest concentration of solar radiation in the whole Earth. This implies that the rate of evaporation of water from the water bodies present  is high, and consequently, the amount of rainfall is high also. This abundant sunshine and high rainfall  leads to the growth of the tropical rain forests at those regions

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3 years ago
PLEASE HELP!! WILL MARK BRAINLIEST!! TIME IS RUNNING OUT!!!
Juli2301 [7.4K]

<span>We can use the heat equation,
Q = mcΔT </span>

<span>

Where Q is the amount of energy transferred (J), m is the mass of the substance (kg), c is the specific heat (J g</span>⁻¹ °C⁻<span>¹) and ΔT is the temperature difference (°C).</span>

 

According to the given data,

Q = 300 J 

m = 267 g

<span> c = ?
ΔT = 12 °C</span>

 

By applying the formula,

<span>300 J = 267 g x c x 12 °C
       c = 0.0936 J g</span>⁻¹ °C⁻<span>¹

Hence, specific heat of the given substance is </span>0.0936 J g⁻¹ °C⁻¹.

 


6 0
4 years ago
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Harrizon [31]
The net ionic equation of hydrobromic acid would be HBr = H+ + Br-. As we can see, the HBr compound dissociates into ions where one ion is the hydronium ion which characterizes an acid. According to Arrhenius, an acid is a compound which releases hydronium ion in solution. 
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