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Kay [80]
3 years ago
6

The rate at witch a candle burns in millimeters per second is?

Chemistry
1 answer:
Marat540 [252]3 years ago
6 0

quantitative is the answer

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Which correctly describes the which correctly describes the relationship between a hydrate, water, and an anhydrous compound?
matrenka [14]

Answer:

adding water to an anhydrous compound forms a hydrate.

Explanation:

8 0
3 years ago
A sample compound contains 9.11 g Ni and 5.89g F. What is the empirical formula of this compound?
Alexxx [7]

The empirical formula of the compound is C. NiF₂.

<em>Step 1</em>. Calculate the <em>moles of each element</em>

The empirical formula is the simplest whole-number ratio of atoms in a compound.

The ratio of atoms is the same as the ratio of moles.

So, our job is to calculate the molar ratio of Ni to F.

Moles of Ni = 9.11 g Ni × (1 mol Ni /(58.69 g Ni) = 0.1552 mol Ni

Moles of F = 5.89 g F × (1 mol F/19.00 g F) = 0.3100 mol F

<em>Step 2</em>. Calculate the <em>molar ratio</em> of the elements

Divide each number by the smallest number of moles

Ni:F = 0.1552:0.3100 = 1:1.997 ≈ 1:2

<em>Step 3</em>: Write the <em>empirical formula</em>

EF = NiF₂

8 0
4 years ago
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A secondary step in the process to produce ultra-pure silicon is to combine silicon tetrachloride with magnesium. How many grams
mariarad [96]

The mass of silicon, Si produced from the reaction is 329.41 g

<h3>Balanced equation </h3>

SiCl₄ + 2Mg —> 2MgCl₂ + Si

Molar mass of SiCl₄ = 28 + (35.5×4) = 170 g/mol

Mass of SiCl₄ from the balanced equation = 1 × 170 = 170 g

Molar mass of Si = 28 g/mol

Mass of Si from the balanced equation = 1 × 28 = 28 g

From the balanced equation above,

170 g of SiCl₄ reacted to produce 28 g of Si.

<h3>How to determine the mass of Si produced </h3>

From the balanced equation above,

170 g of SiCl₄ reacted to produce 28 g of Si.

Therefore,

2 Kg (i.e 2000 g) of SiCl₄ will react to produce = (2000 × 28) / 170 = 329.41 g of Si

Thus, 329.41 g of Si were obtained from the reaction

Learn more about stoichiometry:

brainly.com/question/14735801

8 0
3 years ago
CORRECT ANSWER GETS BRAINLIEST!!!!!!!!!!!!
Mrac [35]

Answer:

2, 4, 1, 3, 5

Explanation:

i believe is this a test

please mark this answer as brainlest i got the answer from someone by the way which is my sis

but forget all of that

please mark brainlest

8 0
3 years ago
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The solubility of solid substances generally ___________ as temperature increases. The solubility of gaseous substances generall
Novay_Z [31]
The solubility of solid substances generally increase as temperature increases. The solubility of gaseous substances generally decrease as temperature increases.
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3 years ago
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