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Sonbull [250]
4 years ago
9

Initially, scientists described atoms as the smallest particles of matter. However, smaller particles within atoms were discover

ed. How did the scientific world respond to this new information? by ignoring the new information because it went against a scientific law by discarding the old theory about atoms and making a new one by revising the theory that explained atoms to include this new information by designing new technology that would prove the new information was wrong
Chemistry
2 answers:
g100num [7]4 years ago
3 0

Answer:

By designing new technology that would prove new information

Explanation:

Tema [17]4 years ago
3 0

im not sure about the answer but i just did the test and "by designing new technology that would prove the new information was wrong" isint the answer

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Zinc is a pure substance. How could you make a mixture from a 1.0-g zinc disc?
anygoal [31]

Answer:

D)Coat the disc with another pure substance, such as copper.

Explanation:

To make a mixture of the zinc, simply coat it with another pure substance such as copper. This will result in a mixture.

What then is a mixture?

  • They are impure substances with indefinite composition.
  • They retain their physical properties
  • their constituents reacts differently to changed conditions
  • They can easily be separated into constituents by physical methods.

We can see that coating the copper on the zinc does not alter the physical properties of the metal.

Most times, the copper will wear off and leave behind the zinc.

The metal coated can easily be removed and this signifies just a physical mix.

8 0
3 years ago
Draw both the chair and boat conformation of 1,4-dimethylcyclohexane with the methyl groups as cis and trans for both conformati
andrezito [222]

Answer:

Boat conformation cis 1,4-dimethyl cyclohexane has the highest energy.

Explanation:

From the conformations, the boat conformation cis 1,4-dimethyl cyclohexane is least stable due to the fact that two methyl groups are located in opposite direction to each other, this leads to the production of  a higher strain. Similarly, Chair conformations appear more stable than boat conformation. Hence, energy is inversely proportional to stability. As a result of the aforementioned, boat conformation cis 1,4-dimethyl cyclohexane has the highest energy.

8 0
3 years ago
The measures of the angles of △ABC are given by the expressions in the table. Angle Measure A ​​ (12x+12)∘ B 15° C (3x+18)∘ What
SOVA2 [1]

Answer:

Angle A = (12 × 9) + 12 = 108 + 12 = 120°

Angle C = (3 × 9) + 18 = 27 + 18 = 45°

Explanation:

if im not wrong this should be right

7 0
3 years ago
Read 2 more answers
When a 2.75g sample of liquid octane (C8H18) is burned in a bomb calorimeter, the temperature of the calorimeter rises from 22.0
OLEGan [10]

Answer:

THE HEAT OF COMBUSTION IS 4995.69 kJ/mol OF OCTANE.

Explanation:

Heat capacity = 6.18 kJ/C

Temperature change = 41.5 C - 22.0 C = 19.5 C

Heat required to raise the temperature by 19.5 °C is:

Heat = heat capacity * temperature change

Heat = 6.18 kJ/ C * 19.5 C

heat = 120.51 kJ of heat

120.51 kJ of heat is required to raise the temperature of 2.75 g sample of  a liquid octane.

Molar mass of octane = ( 12* 8 + 1 * 18) = 114 g/mol

So therefore, the heat of the reaction per mole of octane will be:

120.51 kJ of heat is required for 2.75 g of octane

x J of heat will be required for 114 g of octane

x J = 120.51kJ * 114 / 2.75

x = 4995.69 kJ of heat per mole.

In conclusion, the heat of the combustion reaction in kJ / mole of octane is 4995.69 kJ/mol

4 0
3 years ago
What is the potential energy of your 3 kg puppy that is sitting in the grass in your backyard?
lisov135 [29]

As we know that

P.E. = mgh

where,

P.E. = Potential energy of the object =?

m= mass of object= 3kg

g= acceleration due to gravity = 9.8 ms^-2

h = height between object and animal = 0 m

Then

P.E. = 3× 9.8 × 0 = 0 Joules or 0J

<em>Have a luvely day!</em>

6 0
3 years ago
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