If a chemical change has taken place, which of these is most likely true?

Chemistry

2 answers:

____ [38]2 years ago

5 0

<span>C. A completely new substance is formed.</span>

Paul [167]2 years ago

5 0

C completely new substance

You might be interested in

What is the total number of electron pairs shared between the two atoms in an 02 molecule

BartSMP [9]

4 electrons are shared in an O2 molecule.

4 0

3 years ago

What was a major factor leading to the erosion of

kykrilka [37]

(2) Growing popularity of radio and motion pictures

8 0

2 years ago

How many moles of C2H2 are needed to react completely with 84.0 mol O2?

Mama L [17]

The reaction between C2H2 and O2 is as follows:
2C2H2 + 5O2 = 4CO2 + 2H2O

After balancing the equation, the reaction ratio between C2H2 and O2 is 2:5.

The moles of O2 in this reaction is 84.0 mol. According to the above ratio, the moles of C2H2 needed to react completely with the O2 is 84.0mole *2/5 = 33.6 mole.

6 0

3 years ago

Read 2 more answers

D=853g<br> 310 cm² <br> find the density

jeyben [28]

cazzxzzxzfyusa trattenendo quella wireless

Explanation:

Wii Wii sennò archivi accompagnatori hahahhaa quietanza Wiiplay Stone Sour just boo-boo

7 0

3 years ago

Number of H in 3(NH4)2Cro4

zlopas [31]

The number of H atoms in 3(NH₄)₂CrO₄ = 24

<h3>Further explanation </h3>

The empirical formula is the smallest comparison of atoms of compound forming elements.

A molecular formula is a formula that shows the number of atomic elements that make up a compound.

(empirical formula) n = molecular formula

Subscripts in the chemical formula indicate the number of atoms

The compound of 3(NH₄)₂CrO₄ ( 3 molecules of (NH₄)₂CrO₄ ) :

Number of H :

$\tt 4\times 2(subscript)\times 3(coefficient,number~of~molecules)=24~atoms$

7 0

2 years ago