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3 years ago

___________ a mixture of iron filings and sulfur will make the iron and sulfur atoms combine chemically

2 answers:

5 0

Iron sulfide is a mixture of iron filings and sulfur will make the iron and sulfur atoms combine chemically.

Hope this helps :)

Cloud [144]3 years ago

5 0

The answering would be heating
Heating a mixture of iron filings and sulfur will make the iron and sulfur atoms combine chemically.

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In the chemical equation Zn + 2HCl ZnCl2 + H2, the reactants are

Rudik [331]

Answer : The correct option is A.

Explanation :

The given chemical reaction is,

$Zn+2HCl\rightarrow ZnCl_2+H_2$

In the reaction, Reactants are present on the left side of the arrow and products are present on the right side of the arrow.

Reactants are those which takes part in and undergoes change during the reaction.

Products are those which are formed during the reaction.

In the given reaction, zinc react with hydrochloric acid to form zinc chloride and hydrogen gas.

Therefore, the reactants are zinc and hydrochloric acid.

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3 years ago

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kolezko [41]

Answer:

the quantity of heat required to raise the temperature of 1 gram of a substance by 1 C

plz mark as brainliest and follow me

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3 years ago

What does the hydrolysis of atp do in a ca2+ pump or na+/k+ pump?

34kurt

Hydrolysis of ATP provides the energy that is needed to drive the electrolytes pumps. Energy is needed for these pumps to function because they are active form of transportation which the body use to move electrolytes from one point in the body to the other.

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4 years ago

Read the passage.

RSB [31]

Answer:

the narrator and the newsies

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3 years ago

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Find the empirical formula of the following compound: 0.77 mol of iron atoms combined with 1.0 mol of oxygen atoms.

eimsori [14]

The empirical formula is Fe₃O₄.

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 Fe to O.

I like to summarize the calculations in a table.

Element Moles Ratio¹ ×3² Integers³

Fe 0.77 1 3 3

O 1.0 1.3 3.9 4

¹ To get the molar ratio, you divide each number of moles by the smallest number (0.77).

² If the ratio is not close to an integer, multiply by a number (in this case, 3) to get numbers that are close to integers.

³ Round off these numbers to integers (3 and 4).

The empirical formula is Fe₃O₄.

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3 years ago