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Oduvanchick [21]
4 years ago
9

What is the color of bromcresol green indicator in a solution with a pH of 2.0

Chemistry
1 answer:
Mila [183]4 years ago
5 0

Answer:

The pH value is 2.0, which is less than 3.8, therefore bromcresol green will be of yellow color.

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Describe the formation of an aqueous KI solution when KI dissolves in water
Sidana [21]
Potassium Iodide or KI is an ionic compound and dissolves to water since the two are polar substances. Like dissolves like. As KI is dissolved into water, the KI molecules dissociates into ions, the K+ and I- ions. Water molecules can stabilize these ions. The K+ ions attracts the negative side of H2O molecules which is the oxygen side while the I- ions attracts the positive side of H2O molecules or the hydrogen side.
8 0
3 years ago
A balloon filled with helium has a volume of 30.0 L at a pressure of 100 kPa and a temperature of 15.0°C. What will the volume o
Sholpan [36]

Answer:

V_2=20.1L

Explanation:

Hello there!

In this case, since this is a problem in which the pressure of the gas remains constant, we can use the Charles' law as a directly proportional relationship between temperature (in Kelvins) and volume given by:

\frac{V_2}{T_2} =\frac{V_1}{T_1}

Thus, solving for the final volume as the temperature is decreased to -80.00 °C, we obtain:

V_2=\frac{V_1T_2}{T_1}

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Best regards!

4 0
3 years ago
Know and be able to identify the different properties of minerals
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Color, Streak, Hardness, Cleavage or Fracture, Crystalline Structure, magnetism, Tenacity, and Amount of Transparency, etc. Hope this helps :)<span />
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What is the contour line interval?
Zolol [24]

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it is a curve along which the function has a constant value, so that the curve joins points of equal value.

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4 years ago
A rectangular swimming pool has the dimensions of 26m long, 4m wide, and 2.5 m deep (high). The density of the water in the pool
finlep [7]

Answer:

m=421.2g

Explanation:

Hello.

In this case, we first compute the volume of the pool via:

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Then, since the density is defined as the mass divided by the volume, we compute the mass as follows:

\rho=\frac{m}{V}\\ \\m=\rho*V\\\\m=1.62g/m^3*260m^3\\\\m=421.2g

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3 years ago
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