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3 years ago

Whats is 558 cal to Joules

Chemistry

2 answers:

Julli [10]3 years ago

6 0

It would be 2336.2344 Joules

Didn't know how many decimals you wanted, so I put them all

azamat3 years ago

4 0

2336.2344 joules is the answer

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Substances have a fixed arrangement of atoms. true or false (NO LINKS PLEASE)

KATRIN_1 [288]

Answer:

True

Explanation:

5 0

3 years ago

Tin was among the first metals used by humans. Elemental tin is produced by heating tin(IV) oxide, the principal ore of tin, wit

insens350 [35]

<u>Answer:</u> The coefficient of carbon in the chemical reaction is 1.

<u>Explanation:</u>

A balanced chemical equation is defined as the equation in which total number of individual atoms on the reactant side is equal to the total number of individual atoms on product side.

Law of conservation of mass states that mass can neither be created nor be destroyed but it can only be transformed from one form to another form.

The chemical equation for the reaction of tin (IV) oxide and carbon follows:

$SnO_2+C\rightarrow Sn+CO_2$

By Stoichiometry of the reaction:

1 mole of tin (IV) oxide reacts with carbon to produce 1 mole of elemental tin and carbon dioxide.

Hence, the coefficient of carbon in the chemical reaction is 1.

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3 years ago

At the end of the reaction you washed the chemicals into a beaker using water. Why was it OK to use water to do this if Grignard

lesya692 [45]

Answer: water could be used to wash it since the reaction has ended.

Explanation:

There will be no reaction of water with the Grignard reagent since the reaction has ended, as it is well known that water is a universal solvent for washing of glasswares after experiments but if it is during the reaction it will be more advisable to rinse with alcohol to enhance more accuracy during the experiment

7 0

3 years ago

An aluminum ion has a +3 charge. What change did the atom undergo to attain this charge?

lesya692 [45]

When an ion loses electrons, it becomes a positive ion even though it does not lose protons. If there are more protons than electrons in the ion, the ion will have a positive charge.

8 0

4 years ago

Stells [14]

Answer:

40%

Explanation:

Calculate the percent of the mass that is carbon:

$\% mass = \frac{80}{200} \times 100 = 40\%$

7 0

4 years ago