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leva [86]
2 years ago
13

Explain why subscripts cannot change when balancing a chemical equation

Chemistry
2 answers:
melisa1 [442]2 years ago
6 0

not be changed to balance an equationSubscripts are part of the chemical formula for reactants or products and can

Changing a subscript changes the substance represented by the formula

pav-90 [236]2 years ago
3 0

Subscripts are the identity of the element (the number of atoms) whereas coefficients are the number of molecules of the element.

If you change the subscript, you change the number of atoms an element has. This changes the entire element since each element in the periodic table have different atomic numbers.

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How many moles are in 5.25 L of oxygen gas as stp
Masteriza [31]

Answer:

The correct answer is 0, 235 mol

Explanation:

We use the formula PV =nRT. The normal conditions of temperature and pressure are 273K and 1 atm, we use the gas constant = 0, 082 l atm / K mol:

1 atm x 5, 25l = n  x 0, 082 l atm / K mol x 273 K

n= 1 atm x 5, 25l /0, 082 l atm / K mol x 273 K

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8 0
2 years ago
Which of the following is an example of a physical change? A) grinding coffee beans B) baking a cake C) converting water to hydr
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Answer: A) grinding coffee beans

Explanation:

A physical change is defined as a change in which there is alteration in shape, size etc. No new substance gets formed in these reactions.

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2. Baking a cake: the chemical reaction occurs by combination of flour with oxygen , thus a chemical change.

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4.Burning of coal: the chemical reaction occurs by combination of carbon with oxygen , thus a chemical change.

5 0
2 years ago
Which TWO are most likely to form a compound?<br> C<br> Mg<br> S<br> Ar
lbvjy [14]
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8 0
3 years ago
How many moles of magnesium hydroxide, Mg(OH)2 can be created using 2.23 x 10^24 oxygen atoms?
igor_vitrenko [27]

Answer:

32.07 g/mole.

Explanation:

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3 years ago
How many millimeters (mm) is the length of a standard table if it is
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Answer:

1,500 mm

Explanation:

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3 years ago
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