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
Stolb23 [73]
2 years ago
5

HELP How can you tell if mass is being conserved

Chemistry
1 answer:
Murljashka [212]2 years ago
8 0
I can help say like gas is steaming from a pot like you cooking on the gas is being conserved after it evaporates and liquid if you drink water it’s going into your body so it’s being conserved and solid said like i have a brick and you throw it and it breaks it had been conserved because it’s broken
You might be interested in
Write a balanced overall reaction from these unbalanced half-reactions sn and ag
loris [4]
Balance each one by adding electrons to make the charges on both sides the same:

Sn--> Sn2+ + 2 e-
Ag+ + 1 e- --> Ag

Now, you have to have the same number of electrons in the two half-reactions, so multiply the second one by 2 to get:

2 Ag+ + 2 e- --> 2 Ag

Now, just add the two half reactions together, cancelling anything that's the same on both sides:

2 Ag+ + Sn --> Sn2+ + 2 Ag

And you're done.
8 0
2 years ago
Calculate the mass of water produced when 42 g of propane, c3h8, is burned with 115 g of oxygen
gavmur [86]
The balanced combustion reaction of propane, C₃H₈, is

C₃H₈ + 5 O₂ → 3 CO₂ + 4 H₂O

Molar mass of propane: 44 g/mol
Moles of propane = 42 g * (1 mol/44g) = 0.9545 mol propane

Molar mass of oxygen: 32 g/mol
Moles of oxygen = 115 g * (1 mol/32 g) = 3.594 mol oxygen

Moles of oxygen needed to completely react propane:
0.9545 mol propane * (5 mol O₂/1 mol propane) = 4.7725 mol oxygen

Since the available oxygen is only 3.594 moles and propane needs 4.7725 moles, that means oxygen is our limiting reactant. We base the amount of water produced here.

Molar mass of water: 18 g/mol
Mass of water produced = 3.594 mol O₂ * (4 mol H₂O/5 mol O₂) * (18 g/mol)
Mass of water produced = 258.768 grams
6 0
3 years ago
En el aire que respiramos y en el aire comprimido de los tanques de los buzos se encuentra, además de oxígeno, el gas nitrógeno
marysya [2.9K]

Answer: can someone please translate so i can answer.

Explanation:

sorry

7 0
3 years ago
MgCl2 + AgNO3 → AgCl + Mg(NO3)2
Law Incorporation [45]

Answer:

MgCl2 + 2AgNO3 → 2AgCl + Mg(NO3)2

Explanation:

I'm assuming you want to balance it so...

The first thing I see is that there are two chlorines on the reactant side and one on the product side

Adding a coefficient of 2 would get 2AgCl2

Now there are two silvers on the reactant side, so add a 2 to AgNO3 on the products side. Now they are all balanced.

If that is not what you are looking for let me know!

6 0
2 years ago
Read 2 more answers
Identify the elements that have the following abbreviated electron configurations.
SSSSS [86.1K]

Answer:

A) Chlorine (Cl)

B) Cobalt (Co)

C) Caesium (Cs)

Hope this helps.

6 0
2 years ago
Read 2 more answers
Other questions:
  • What type of element has properies unlike metal?
    12·1 answer
  • What would happen if grasshoppers population increased
    12·1 answer
  • Maximum number of possible structural of C7H9N
    12·1 answer
  • Convert 4.50 moles of Fe to atoms of Fe
    13·1 answer
  • Scientists often work on projects for a long time and fail to see sources of error in their research. Which process allows an ou
    15·2 answers
  • Define saturated and unsaturated fats​
    15·2 answers
  • 8
    12·1 answer
  • Help me answer this plz.
    8·1 answer
  • 1. Choose the correct answer from the given alternative. 1. A blood sample analysis showed that a total of 0.0000036g lead. Expr
    12·1 answer
  • Which of the following happens when a reaction reaches dynamic equilibrium in a closed system?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!