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
nevsk [136]
2 years ago
8

H2+o2 - h2o mass Please help

Physics
1 answer:
emmasim [6.3K]2 years ago
4 0

H2O2 H2O

H2 + O2 → H2O. Word equation: Hydrogen gas + Oxygen gas → water. Type of Chemical Reaction: For this reaction we have a Combination reaction. Balancing Strategies: For this reaction it is helpful to start by changing the coefficient in front of H2O and so that you have an even number of oxygen atoms.

You might be interested in
How do i solve?<br><br>a = bc<br>(b)​
stira [4]
I don’t even know I’m so dumb.
7 0
3 years ago
What is the rate of acceleration due to gravity on Earth?
Katena32 [7]

Answer:

Negative 9.8 meters per second squared

Explanation:

The negative is for the direction (down, towards the center of the earth). Often this can be estimated as -10 m/s^2 to make calculations easier.

3 0
3 years ago
A heat pump with a COP of 3.15 is used to heat an air-tight house. When running, the heat pump consumes 5 kW of power. If the te
Jet001 [13]

Answer: 1026s, 17.1m

Explanation:

Given

COP of heat pump = 3.15

Mass of air, m = 1500kg

Initial temperature, T1 = 7°C

Final temperature, T2 = 22°C

Power of the heat pump, W = 5kW

The amount of heat needed to increase temperature in the house,

Q = mcΔT

Q = 1500 * 0.718 * (22 - 7)

Q = 1077 * 15

Q = 16155

Rate at which heat is supplied to the house is

Q' = COP * W

Q' = 3.15 * 5

Q' = 15.75

Time required to raise the temperature is

Δt = Q/Q'

Δt = 16155 / 15.75

Δt = 1025.7 s

Δt ~ 1026 s

Δt ~ 17.1 min

5 0
3 years ago
Read 2 more answers
The amount of energy carried by a wave and the waves maximum displacement from the rest position describe what?
Mademuasel [1]
What you are describing is Amplitude.
6 0
2 years ago
What is the relationship between Avogadro's number and a mole?
Shtirlitz [24]

Answer:

A. There are 6.02 x 1023 items in a mole, which equals Avogadro's

number

Explanation:

The mole of a substance is

8 0
2 years ago
Other questions:
  • If an object has zero acceleration, does it have to have zero velocity?
    14·1 answer
  • The value of x in the diagram is ___ °.<br><br> 40<br> 50<br> 90<br> 180
    9·1 answer
  • A student is sitting at rest in a chair. How does the force that the student exerts
    8·1 answer
  • 25. A car is accelerating when it is (a) traveling on a straight, flat road at 50 miles per hour. (b) traveling on a straight up
    13·1 answer
  • A heavy sled and a light sled, both moving horizontally with the same speed, suddenly slide onto a rough patch of snow and event
    14·2 answers
  • An electromagnetic generator consists of a coil that has 100 turns of wire, has an area of 400 cm2, and rotates at 60 rev/ s in
    15·1 answer
  • You have 2 minutes to get to PE from science class before you get a tardy. If PE is 100m away and you walk at a speed of 1.1m/s
    12·2 answers
  • How much support force does a table exert on a book that weighs 15 N when the book is placed on the table?
    12·1 answer
  • Can someone please give me the answers to this? ... please ...
    6·1 answer
  • A stone of weight 10N falls from the top of a 250m high cliff. a) Calculate how much work is done by the force of gravity in pul
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!