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3 years ago

How many scientific methods

Chemistry

1 answer:

iogann1982 [59]3 years ago

8 0

Answer:

There is one scientific method

it starts with an

OBSERVATION

then a HYPOTHESIS

which goes to planning, creating an EXPERIMENT

and finally a conclusion for your results

Explanation:

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How many sulfur atoms are generated when 9.42 moles of H2S react according to the following equation: 2H2S+SO2→3S+2H2O

8_murik_8 [283]

Answer:

A) 8.51 × 10²⁴

Explanation:

1. Gather all the information

2H₂S + SO₂ ⟶ 3S + 2H₂O

n/mol: 9.42

2. Calculate the moles of S atoms

The molar ratio is 3 mol S:2 mol H₂S

$\text{Moles of S} = \text{9.42 mol H$_{2}$S} \times \dfrac{\text{3 mol S }}{\text{2 mol H$_{2}$S }} = \text{14.13 mol S}$

3. Calculate the atoms of S

$\text{Atoms of S } = \text{14.13 mol S} \times \dfrac{6.022 \times 10^{23}\text{ S atoms}}{\text{1 mol S}} = \mathbf{8.51 \times 10^{24}}\textbf{ S atoms}$

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3 years ago

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Sonia was experimenting with electric charges. She tied two inflated balloons together, held them next to each other, and rubbed

Sladkaya [172]

Sonia observed that the two balloons repelled each other. This is because both balloons acquired the same charge when she rubbed them with the piece of wool, and like charges repel each other.

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3 years ago

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What is the answer please tell me

Nastasia [14]

Answer:

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Explanation:

5 0

2 years ago

Some male coworkers of Suzanne are bullying her because she is a woman which type of work hazard is this

Mandarinka [93]

Answer: D
Psychological Hazard

4 0

2 years ago

is the approximate relation celsius = 1/2 fahrenheit a better approximation at higher or lower temperatures?

kirill115 [55]

Answer : The approximate relation Celsius = 1/2 Fahrenheit is a better approximation at higher temperatures

Explanation :

The formula for Celsius to Fahrenheit conversion is

$C = (F-32) \times \frac{5}{9}$

At lower temperature the value that needs to be subtracted (32) is large enough as a result the approximation "celsius = 1/2 fahrenheit " does not seem valid.

For example, 50 F is 10°C.

$(50 - 32) \times \frac{5}{9} = 10 C$

This is almost 1/5 of Fahrenheit temperature.

But at higher temperatures , the value becomes insignificant and also the ratio 5/9 tend to be equal to 0.5.

For example, 2000 F is 1093°C

$(2000 - 32) \times \frac{5}{9} = 1093 C$

This is almost half of Fahrenheit temperature.

Therefore , the approximate relation Celsius = 1/2 Fahrenheit is a better approximation at higher temperatures

8 0

3 years ago