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babymother [125]

3 years ago

7

Data Table 3: Polystyrene Test Tube, 12x75mm

1 answer:

Lera25 [3.4K]3 years ago

4 0

Answer:

Experiment 8 E Data Table 3 ﬂ Data Table 4 ﬂ Data Table 5 ﬂ Data Table 6 Data Table 3: Polystyrene Test Tube, 12x75mm Volume of water at room temperature (V1 in mL) Volume of gas in polystyrene tube at boil (V2 in mL) Temperature of gas at boil inside polystyrene tube (°C) Volume of gas in polystyrenetube at room temperature (V3 in mL) Temperature of gas.

Explanation:

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In the equation:

Ksenya-84 [330]

Answer:

B) 16 g

Explanation:

2H₂ + O₂ → 2H₂O

First we <u>convert 4 moles of O₂ into moles of H₂</u>, using the <em>stoichiometric coefficients of the balanced reaction</em>:

4 mol O₂ * $\frac{2molH_2}{1molO_2}$ = 8 mol H₂

Finally we <u>convert 8 moles of H₂ into grams</u>, using <em>its molar mass</em>:

8 mol H₂ * 2 g/mol = 16 g

Thus, the correct answer is option B).

6 0

3 years ago

Write down moleculer formula:

Temka [501]

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2.Ca(HCOO)2
3. Ca(OH)2
4.NaOH
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5 0

3 years ago

Read 2 more answers

Unit 1- Unit Assessment (Matter & Density)

konstantin123 [22]

Answer:

<h3>The answer is 11 g/mL</h3>

Explanation:

The density of a substance can be found by using the formula

$density = \frac{mass}{volume} \\$

From the question

mass = 3025 g

volume = 275 mL

We have

$density = \frac{3025}{275} \\$

We have the final answer as

<h3>11 g/mL</h3>

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3 years ago

Is boiling eggs chemical or physical practice?

Elden [556K]

Answer:

chemical

Explanation:

because heat is being taken to the egg

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