All categories

3 years ago

Explain how creating a model provides a practical solution for some scientific research.

Chemistry

2 answers:

igor_vitrenko [27]3 years ago

8 0

Answer:

A scientific model is a simplified visual representation of the complex system.

They are used during scientific research:

1. To prove and disprove the hypothesis

2. Represent 2D or 3D representations of either very small or very large systems like microorganisms and solar system.

3. Used by the scientific communities to explain the complex scientific systems to people.

JulijaS [17]3 years ago

5 0

It allows scientists to visualize the molecule they are working with more vividly.

It also allows them to see the ratio of atoms It contains which further allows

scientist to find the proportions of chemicals to mix together to maximize the

efficiency of a chemical reaction.

You might be interested in

Gallium (atomic number 31) is in group 13 (IIIA). In addition to the s type electrons, it will have how many electrons in the 4p

qwelly [4]

Answer:

One electron is present in 4p energy sublevel.

Explanation:

Gallium element has symbol Ga with atomic number 31.

It is placed in group 13 and fourth period in the modern periodic table.

The electronic configuration of the element, gallium is -

$1s^22s^22p^63s^23p^63d^{10}4s^24p^1$

As seen, from the configuration,

One electron is present in 4p energy sublevel.

3 0

3 years ago

A chunk of tin weighing 18.5 grams and originally at 97.38 °C is dropped into an insulated cup containing 75.7 grams of water at

weqwewe [10]

Answer:

22.44°C will be the final temperature of the water.

Explanation:

Heat lost by tin will be equal to heat gained by the water

$-Q_1=Q_2$

Mass of tin = $m_1=18.5 g$

Specific heat capacity of tin = $c_1=0.21 J/g^oC$

Initial temperature of the tin = $T_1=97.38^oC$

Final temperature = $T_2$ =T

$Q_1=m_1c_1\times (T-T_1)$

Mass of water= $m_2=75.7 g$

Specific heat capacity of water= $c_2=4.184 J/g^oC$

Initial temperature of the water = $T_3=21.52^oC$

Final temperature of water = $T_2$ =T

$Q_2=m_2c_2\times (T-T_3)$

$-Q_1=Q_2$

$-(m_1c_1\times (T-T_1))=m_2c_2\times (T-T_3)$

On substituting all values:

$-(18.5 g\times 0.21 J/g^oC\times (T-97.38^oC))=75.7 g\times 4.184 J/g^oC\times (T-21.52 ^oC)$

we get, T = 22.44°C

22.44°C will be the final temperature of the water.

5 0

4 years ago

What hypothesis can you draw about penicillin

astra-53 [7]

Penicillin V is an antibiotic in the penicillin group of drugs. It fights bacteria in your body. Penicillin V is used to treat many different types of infections caused by bacteria, such as ear infections,. Penicillin V may also be used for other purposes not listed in this medication guide.

7 0

4 years ago

Suggest why sodium and hydrogen ions do not diffuse at the same rate

Troyanec [42]

Answer:

sodium has got ionic bonds that are weak

compared to hydrogen covalent bonds that are strong

8 0

3 years ago

Which of these statements describes this mathematical equation?

salantis [7]

Answer: