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sashaice [31]
3 years ago
12

Which substance can be broken down by chemical means?

Chemistry
2 answers:
zepelin [54]3 years ago
4 0
Methanol is the substance that can be broken down by chemical means, the remaining ones are elements.
bearhunter [10]3 years ago
4 0
4. Methanol

Methanol is a compoud. The rest of the choices are elements. Elements can't be broken down, and compounds can.
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6th grade science please help me (:
Allushta [10]
A. Thermometer is the weather instrument that has most improved the accuracy of weather forecasts over the past 40 years.
3 0
3 years ago
Cyclobutane consists of 4 atoms of carbon and 8 atoms of hydrogen. What is cyclobutane's empirical formula
Illusion [34]

Answer:

What is cyclobutane empirical formula : C4H8

Explanation:

7 0
3 years ago
Can someone help me?
GrogVix [38]
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3 0
2 years ago
HELP PLEASE THIS IS MY LAST QUESTION FOR THIS QUIZ
igor_vitrenko [27]

Answer:

Density = 19.3 g/cm³

Explanation:

D = m/v

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6 0
2 years ago
Read 2 more answers
Use the equation to determine what mass of FeS must react to form 326 g of FeCl2.
iogann1982 [59]

Answer:

We need 226 grams of FeS

Explanation:

Step 1: Data given

Mass of FeCl2 = 326 grams

Molar mass FeCl2 = 126.75 g/mol

Step 2: The balanced equation

FeS + 2 HCl → H2S + FeCl2

Step 3: Calculate moles FeCl2

Moles FeCl2 = 326 grams / 126.75 grams

Moles FeCl2 = 2.57 moles

Step 4: Calculate moles FeS needed

For 1 mol H2S and 1 mol FeCl2 produced, we need 1 mol FeS and 2 moles HCl

For 2.57 moles FeCl2 we need 2.57 moles FeS

Step 5: Calculate mass FeS

Mass FeS = 2.57 moles * 87.92 g/mol

Mass FeS = 226 grams FeS

We need 226 grams of FeS

4 0
3 years ago
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