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Softa [21]
3 years ago
11

True or false: BrF5(aq) is a good insulator.

Chemistry
1 answer:
jeka943 years ago
7 0

Answer:

true

hope this helps :)

Explanation:

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Many types of scientific equipment are used to perform different functions in the science lab. Which of the following combinatio
alisha [4.7K]

The scientific instruments used to heat water to 85 degree Celsius has been graduated cylinder, beaker, thermometer, and hot plate. Thus, option B is correct.

Scientific equipments have been defined as the instruments and glassware that has been used in the scientific study and experimentation.

<h3>Equipments for heating the water</h3>

The water has been heated to the temperature of 85 degrees Celsius. The temperature has to be monitored thus, a thermometer has been used.

The water has been measured to be 1 L, thus the graduated cylinder, and beaker has been used for the measurement and heating of water.

The heat has been provided to the beaker by placing it on a hot plate.

Thus, the scientific instruments used to heat water to 85 degree Celsius has been graduated cylinder, beaker, thermometer, and hot plate. Thus, option B is correct.

Learn more about scientific equipments, here:

brainly.com/question/24690874

3 0
2 years ago
Read 2 more answers
Calculate delta Gº for the following system:
Llana [10]

Answer:

ΔG = - 442.5  KJ/mol    

Explanation:

Data Given

delta H = -472 kJ/mol

delta S = -108 J/mol K

So,

delta S = -0.108 J/mol K

delta Gº = ?

Solution:

The answer will be calculated by the following equation for the Gibbs free energy

                    G = H - TS

Where

G = Gibbs free energy

H = enthalpy of a system (heat

T = temperature

S = entropy

So the change in the Gibbs free energy at constant temperature can be written as

                ΔG = ΔH - TΔS . . . . . . (1)

Where

ΔG = Change in Gibb’s free energy

ΔH = Change in enthalpy of a system

ΔS = Change in entropy

if system have standard temperature then

T = 273.15 K

Now,

put values in equation 1

                  ΔG = (-472 kJ/mol) - 273.15 K (-0.108 KJ/mol K)

                 ΔG = (-472 kJ/mol) - (-29.5 KJ/mol)

                 ΔG = -472 kJ/mol + 29.5 KJ/mol

                 ΔG = - 442.5  KJ/mol          

7 0
3 years ago
Which of the following materials is useful for making molds because it has a low melting point
Tanzania [10]
The answer would be C.) clay The wax can turn really hard and can be unbreakable when present in colder materials due to the lipids present in it. Clay however can become a mold because of its low melting point.
6 0
3 years ago
Read 2 more answers
What is the charge on the calcium ion in Ca3(PO4)2?
irina1246 [14]

Answer: calcium ion has +2 charge

Explanation:

5 0
3 years ago
When butane reacts with oxygen, the temperature of the surrounding area
uranmaximum [27]
Hello!

When butane reacts with oxygen, the temperature of the surrounding area increases.

The chemical equation for this reaction is:

2C₄H₁₀ + 13O₂ → 8CO₂ + 10H₂O

This is a combustion reaction. Combustion reactions are highly exothermic, meaning that there is a high amount of energy that is released from the breaking of the chemical bonds and the oxidation of butane to carbon dioxide. This energy is released in the form of heat, increasing the temperature of the surroundings.

Have a nice day!
6 0
3 years ago
Read 2 more answers
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