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Ket [755]
3 years ago
6

Drag each tile to the correct box.

Chemistry
2 answers:
Marat540 [252]3 years ago
7 0
Conduct the experiment then analyze the data then communicate the results and then make a hypothesis
FromTheMoon [43]3 years ago
5 0

Answer:

The correct answer will be-

1. Make a hypothesis.

2. Conduct an experiment.

3. Analyze the experimental data.

4. Communicate the results.

Explanation:

A scientific method is an approach used by the scientist to understand, answer and explain the natural phenomenon or events.

The method follows the sequential steps which begin with making an observation, asking a question, doing background research which leads to the formation of the hypothesis which repents the possibility of the explanation of the phenomenon to a limit.

The hypothesis is then tested by the experiments which can prove or disprove the hypothesis by providing the results. The results are analysed based on which conclusions are drawn. The results are then communicated to the scientific community.

Thus, the arranged sequence is correct.

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In a climatological sense, dryness is a function of both annual rainfall and ________.
Margarita [4]

Answer:

In a climatological sense, dryness is a function of both annual rainfall and evaporation

8 0
2 years ago
Explain the role of rhinos in the food chain?
hichkok12 [17]
The role of rhinos in the food chain is... <span>White rhinos are grass-grazing animals, while black rhinos are low browsers. They fill similar roles in their ecosystems to other grazers and browsers. Their size means they eat a LOT, and also means that generally only their offspring are preyed on. So, recycling and trampling high-carbon foliage into fertilizer is their main function.
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4 0
3 years ago
Read 2 more answers
Necesito ayuda porfavor
AlexFokin [52]

Answer:

thank for the points ❤️

Explanation:

pa breinlyest po

8 0
3 years ago
What are the names of the compound (with roman numeral)? Na2SO4
sergiy2304 [10]

Answer:

Sodium sulphate

Or sodium (I) sulphate

Explanation:

7 0
3 years ago
You are given a solid that is a mixture of Na2SO4 and K2SO4. A 0.205-g sample of the mixture is dissolved in water. An excess of
Svetach [21]

Answer:

Mass of SO₄⁻² = 0.123 g.

Mass percentage of SO₄⁻² = 41.2%

Mass of Na₂SO₄ = 0.0773 g

Mass of K₂SO₄ = 0.1277 g

Explanation:

Here we have

We place Na₂SO₄ = X and

K₂SO₄ = Y

Therefore

X +Y = 0.205 .........(1)

Therefore since the BaSO₄ is formed from BaCl₂, Na₂SO₄ and K₂SO₄ we have

Amount of BaSO₄ from Na₂SO₄ is therefore;

X\times\frac{Molar \, Mass \, of \, BaSO_4}{Molar \, Mass \, of \, Na_2SO_4}

Amount of BaSO₄ from K₂SO₄ is;

Y\times\frac{Molar \, Mass \, of \, BaSO_4}{Molar \, Mass \, of \, K_2SO_4}

Molar mass of

BaSO₄ = 233.38 g/mol

Na₂SO₄ = 142.04 g/mol

K₂SO₄ = 174.259 g/mol

X\times\frac{Molar \, Mass \, of \, BaSO_4}{Molar \, Mass \, of \, Na_2SO_4} = X\times\frac{233.38 }{142.04} = 1.643·X

Y\times\frac{Molar \, Mass \, of \, BaSO_4}{Molar \, Mass \, of \, K_2SO_4} = Y\times\frac{233.38 }{174.259 } = 1.339·Y

Therefore, we have

1.643·X + 1.339·Y = 0.298 g.....(2)

Solving equations (1) and (2) gives

The mass of SO₄⁻² in the sample is given by

Mass of sample = 0.298

Molar mass of BaSO₄ = 233.38 g/mol

Mass of Ba = 137.327 g/mol

∴ Mass of SO₄ = 233.38 g - 137.327 g = 96.05 g

Mass fraction of SO₄⁻² in BaSO₄ = 96.05 g/233.38 g = 0.412

Mass of SO₄⁻² in the sample is 0.412×0.298 = 0.123 g.

Percentage mass of SO₄⁻² = 41.2%

Solving equations (1) and (2) gives

X = 0.0773 g and Y = 0.1277 g.

8 0
3 years ago
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