1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Klio2033 [76]
2 years ago
8

How does the law of conservation of mass apply to this reaction: C2H4 + O2 → H2O + CO2?

Chemistry
2 answers:
kozerog [31]2 years ago
7 0

its d because it all has to be balanced

lisov135 [29]2 years ago
6 0

Answer:

D.) Each element needs to be balanced

Explanation:

I just took the test and got 100

You might be interested in
What’s the difference between grazing and true predation
Mila [183]

Answer:

For terrestrial animals, grazing is normally distinguished from browsing in that grazing is eating grass or forbs, and browsing is eating woody twigs and leaves from trees and shrubs. Grazing differs from true predation because the organism being grazed upon is not generally killed.

Explanation:

7 0
3 years ago
3 & 4 Help pleaseeeee
kvasek [131]
3 is C i believe, and as for 4 minerals are solid, natural.. that's about all I can say...
4 0
3 years ago
A chemist measures the enthalpy change ?H during the following reaction: Fe (s) + 2HCl (g) ? FeCl2 (s) + H2 (g) =?H?157.kJ Use t
erik [133]

Correct Question:

A chemist measures the enthalpy change ΔH during the following reaction: Fe(s) + 2HCl(g)-->FeCl2(s) + H2 ΔH=-157.0 kJ. Use this information to complete the table below. Round each of your answers to the nearest kJ/mol

Answer:

-314 kJ

+628 kJ

+157 kJ

Explanation:

The enthalpy change of a reaction measures the amount of heat that is lost or gained by it. If ΔH >0 the heat is gained, and the reaction is called endothermic, if ΔH<0, the heat is lost, and the reaction is called exothermic.

If the reaction is inverted, the value of ΔH is inverted too (the opposite endothermic reaction is exothermic), and if the reaction is multiplied by a constant, ΔH will be multiplied by it too.

1) 2Fe(s) + 4HCl --> 2FeCl2(s) + 2H2(g)

This reaction is the product of the given reaction by 2, so

ΔH = 2*(-157) = -314 kJ

2) 4FeCl2(s) + 4H2(g) --> 4Fe(s) + 8HCl(g)

This reaction is the inverted reaction given multiplied by 4, so

ΔH = 4*(157) = +628 kJ

3) FeCl2(s) + H2(g) --> Fe(s) + 2HCl

This reaction is the inverted reaction given, so

ΔH = +157 kJ

4 0
3 years ago
Mitosis occurs during which phase?
lara [203]

Answer:

Prophase

Explanation:

Prophase is the first stage in mitosis, occurring after the conclusion of the G2 portion of interphase. During prophase, the parent cell chromosomes — which were duplicated during S phase — condense and become thousands of times more compact than they were during interphase.

8 0
2 years ago
Please help need answer fast ???
Alika [10]

Answer: 1.33x10^-22g

Explanation:Please see attachment for explanation

6 0
3 years ago
Other questions:
  • _KCIO, - __KCI + ___02
    15·1 answer
  • Is calcium a metal, nonmetal, or metalloid?
    8·1 answer
  • Elements in the same column of the periodic table share:
    8·1 answer
  • This is my first question on Brainly, Can someone explain Molar mass to me? I am not very good with it..
    5·1 answer
  • Which compounds are lewis acids? select all that apply. (ch3ch2)2hc+ cl3c− ch3nh2 bbr3?
    7·1 answer
  • Base your answers to questions 66 through 68 on the information below.
    8·1 answer
  • What is the concentration of the hydroxide ion? Given that the concentration of the hydronium ion is 2.3 X 10^-7 M
    15·1 answer
  • If 4.59 g of potassium reacts with 3.6 g of sulfur according to the following reaction, how many grams of potassium sulfide can
    6·1 answer
  • Organize the following list of atoms from lowest to highest Electronegativity:
    14·1 answer
  • If you wanted to find a sample of fermium, which has an atomic number 100, where would you look?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!