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weqwewe [10]
3 years ago
9

What is one thing that all measurements have?

Chemistry
1 answer:
lbvjy [14]3 years ago
6 0
A number and a unit?
You might be interested in
How a neutral object is different from a negatively charged object.
Naddik [55]

Answer:

Charged objects have an imbalance of charge - either more negative electrons than positive protons or vice versa. And neutral objects have a balance of charge - equal numbers of protons and electrons. ... Their presence (or absence) will have no direct bearing upon whether an object is charged or uncharged.

3 0
3 years ago
A thermite reaction realeses large amounts of heat and light resulting in the melting of the iron metal
lara [203]

Answer:

1. Fe₂O₃ : Al = 1 : 2

2. Fe₂O₃ : Al₂O₃ = 1 : 1

3. Fe₂O₃ : Fe = 1 : 2

Note: The question is incomplete. The complete question is given below :

A thermite reaction releases large amounts of heat and light, resulting in the melting of the iron metal that forms during the reaction. The balanced chemical equation is given below: Fe₂O₃(s) + 2Al(s) ---> Al₂O₃(s) + 2Fe(l) Determine the correct mole ratios for the following substances, based on this chemical equation.

Explanation:

A thermite reaction is a highly exothermic reaction that occurs between a mixture of powdered aluminium and iron (iii) oxide.

The reaction is a redox reaction which produces aluminium oxide and metallic iron.

The heat given out in the reaction melts the iron formed. It is used to join railway tracks or cracked machine parts. The molten iron runs down between the tracks and welds them together.

The balanced equation of the reaction is given below :

Fe₂O₃(s) + 2Al(s) ---> Al₂O₃(s) + 2Fe(l) + Heat

The mole ratio of the reactant and products are as follows:

1. 1 mole of Iron (iii) oxide and 2 moles of aluminium are combined

Fe₂O₃ : Al = 1 : 2

2. 1 mole of aluminium oxide is produced from 1 mole of iron (iii) oxide

Fe₂O₃ : Al₂O₃ = 1 : 1

3. 2 moles of of iron are produced from 1 mole of iron (iii) oxide

Fe₂O₃ : Fe = 1 : 2

4 0
3 years ago
What is nitrogens formula​
elena-14-01-66 [18.8K]

Answer:

N2 (but the 2 is a subscript) i think

Explanation:

i looked it up

6 0
3 years ago
Read 2 more answers
Draw the carboxylic acid produced from the acid hydrolysis of butyl acetate.
Nat2105 [25]

Answer:

Acetic or ethanoic acid.

Explanation:

Hello,

Butyl acetate's hydrolisis is shown below:

CH_3COOCH_2CH_2CH_2CH_3+H_2O-->CH_3COOH+CH_3CH_2CH_2CH_2OH

Whereas CH_3COOCH_2CH_2CH_2CH_3 is the butyl acetate, CH_3CH_2CH_2CH_2OH butanol and CH_3COOH the required produced acid, acetic or ethanoic acid (attached picture).

Best regards.

7 0
3 years ago
The nucleus is incredibly dense--it contains nearly all of the mass of the atom within a tiny volume. TRUE FALSE​
const2013 [10]

Answer: True

The nucleus is a small, dense region at the center of the atom. It consists of positive protons and neutral neutrons, so it has an overall positive charge. The nucleus is just a tiny part of the atom, but it contains virtually all of the atom's mass.

4 0
3 years ago
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