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3 years ago

Which statement best describes balancing equations and the law of conservation of mass?

Chemistry

1 answer:

Marta_Voda [28]3 years ago

6 0

Answer:

B.) The number of atoms is the same in the reactants and in the products, and the total mass is the same in the reactants and in the products.

Explanation:

law of conservation of matter/mass states that no atoms can be created or destroyed

hope this helps :)

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Name the property of salt investigated in the above experiment

Snezhnost [94]

which experiment please involve a clip

7 0

3 years ago

When agno3 was added to test tube d it reacted with cl to form agcl precipitate. Did this result in a shift to the right or the

AlekseyPX

Answer:

Reaction will move rightwards.

Explanation:

Hello there!

In this case, according to the proposed question, it turns out possible for us to figure out the effect of the addition of silver nitrate, by using the following representative equation for the formation of the silver chloride precipitate:

$Ag^+(aq)+Cl^-(aq)\rightleftharpoons AgCl(s)$

Now, due to the addition of silver nitrate, we will be actually adding silver ions to the solution, which means that, in terms of the Le Ch atelier's principle, the reaction will shift to the right towards the formation of more silver chloride precipitate.

Best regards!

4 0

3 years ago

PlEASE HELP! 40!

podryga [215]

Answer:

moles Na = 0.1114 g / 22.9898 g/mol=0.004846

moles Tc = 0.4562g /98.9063 g/mol=0.004612

mass O = 0.8961 - ( 0.1114 + 0.4562)=03285 g

moles O = 0.3285 g/ 15.999 g/mol=0.02053

divide by the smallest

0.02053/ 0.004612 =4.45 => O

0.004846/ 0.004612 = 1.0 => Tc

to get whole numbers multiply by 2

Na2Tc2O 9

Explanation:

Hope it right hope it helps

5 0

3 years ago

Please help me answer this. I am so confused.

Phoenix [80]

Same I’m so confused ‍♀️

6 0

3 years ago

Are resonance structures needed to describe the structure hco2-

Marysya12 [62]

Resonance or mesomerism is applicable to structures that cannot be formed with a single bond alone. Thus, for the structure of HCO2, there can be 2 resonance structures. In each structure, the formal charges are

C=0;
C=0
Oxygen=0
C-O=-1
H=0

HCO2-'s structure is a mixture of the two resonance structures. Hope this helps.

6 0

4 years ago