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3 years ago

A piece of notebook paper

Chemistry

2 answers:

Elis [28]3 years ago

6 0

Answer:

Yes it is a Heterogenous mix because we know a piece of notebook paper comes from a tree and we know a tree is a amplafier for fire which is why it is used as a element and a compound so it is a mix

VikaD [51]3 years ago

4 0

An element but I’m not too sure

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What does it mean to say that a hypothesis is falsifiable

Lelu [443]

Answer: This means that the answer can be proven wrong.

Explanation:

Hope this helps!!

7 0

2 years ago

Read 2 more answers

Draw a mechanism for the reaction of methylamine with 2-methylpropanoic acid. Draw any necessary curved arrows. Show the product

Nitella [24]

Answer:

See figure 1

Explanation:

On this case we have a base (methylamine) and an acid (2-methyl propanoic acid). When we have an acid and a base an acid-base reaction will take place, on this specific case we will produce an ammonium carboxylate salt.

Now the question is: ¿These compounds can react by a nucleophile acyl substitution reaction? in other words ¿These compounds can produce an amide? 

Due to the nature of the compounds (base and acid), the nucleophile (methylamine) doesn't have the ability to attack the carbon of the carbonyl group due to his basicity. The methylamine will react with the acid-producing a positive charge on the nitrogen and with this charge, the methylamine loses all his nucleophilicity.

I hope it helps!

5 0

3 years ago

A 5.2 molal aqueous solution of methyl alcohol, CH3OH, is supplied. What is the mole fraction of methyl alcohol in the solution?

telo118 [61]

Answer:

0.086

Explanation:

A 5.2 molal aqueous solution of methyl alcohol indicates that 5.2 moles of methyl alcohol are present in 1 kilogram (or 1000 g) of water. Water has a molecular weight of 18 g/mol.

(100g)/18g/mol=55.56 mol

5.2 mol/(5.2mol+55.56 mol)=0.086

4 0

1 year ago

Suppose that 100 grams of water at 50.0°C is placed in contact with 200 grams of iron at 30.0°C. The final

wel

Answer:

The answer would be 1.5 kJ.

Explanation:

When you use the equation q = m x c x ∆T you will be able to find the energy gained or lost. The data for the water in this case is just there to distract you so ignore it. :D

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2 years ago

What did ancient astronomers think areas of the moon called mares might be?

RUDIKE [14]

Answer: seas

Explanation:

The ancient astronomers thought the mares on the moon were seas.

7 0

2 years ago