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
lana [24]
3 years ago
5

What is a firedamp? A. a blanket-like object used to extinguish fires B. the remnants of a fire after it has been extinguished C

. a fire extinguisher that uses water to extinguish a fire D. a buildup of mostly methane gas, which is potentially explosive
Chemistry
1 answer:
diamong [38]3 years ago
8 0

Answer: D. A buildup of mostly methane gas, which is pontentially explosive.

Explanation:

Firedamp refers to a gas mixture, largely methane, that appear in underground coal mines.  It is explosive at concentrations between 5 and 10% in the air.

You might be interested in
what is the boiling point of a 0.321 m aqueous solution of NaCl. Enter your rounded answer with 3 decimal places.
Ronch [10]

Answer:

I believe the rounded place is 100.333.

3 0
2 years ago
Read 2 more answers
The concentration of a solution can be expressed in
puteri [66]
The concentration of a solution can be expressed in (4) <span>moles per liter~</span>
3 0
3 years ago
Read 2 more answers
What is the largest number of atoms a carbon atom can bond to with all single bonds
ICE Princess25 [194]
4 total bonds if u have double,or triple then subtract from 4
3 0
3 years ago
Write in scientific form<br> 0.00580 → <br><br> 3000 → <br><br> 0.000908 → <br><br> 200. →
vagabundo [1.1K]

Answer:

Explanation:

0.00580=5.8*10^-3

3000=3.0*10^3

0.000908=9.08*10^-4

200.=2.0*10^2

6 0
3 years ago
The electrolysis of water forms H2 and O2. 2H2O Right arrow. 2H2 O2 What is the percent yield of O2 if 10.2 g of O2 is produced
Mama L [17]

Answer:

67.5%

Explanation:

Step 1: Write the balanced equation for the electrolysis of water

2 H₂O ⇒ 2 H₂ + O₂

Step 2: Calculate the theoretical yield of O₂ from 17.0 g of H₂O

According to the balanced equation, the mass ratio of H₂O to O₂ is 36.04:32.00.

17.0 g H₂O × 32.00 g O₂/36.04 g H₂O = 15.1 g O₂

Step 3: Calculate the percent yield of O₂

Given the experimental yield of O₂ is 10.2 g, we can calculate its percent yield using the following expression.

%yield = (exp yield / theoret yield) × 100%

%yield = (10.2 g / 15.1 g) × 100% = 67.5%

8 0
2 years ago
Other questions:
  • As pilots get closer to the speed of sound:
    11·1 answer
  • Why is the electronegativity of an element important?
    10·2 answers
  • When the elements in group 1 are considered in order from top to bottom, each successive element at standard pressure has
    11·2 answers
  • If δh°rxn and δs°rxn are both positive values, what drives the spontaneous (favored) reaction and in what direction at standard
    14·1 answer
  • An atom contains 4 protons, 3 neutrons, and 5 electrons. what is its total electric charge?
    8·2 answers
  • What are the physical properties of the element lithium?
    9·1 answer
  • Which object is a good conductor of heat and electricity?
    15·1 answer
  • 3. Theoretically how many grams of magnesium is required to produce to 5.0 g of
    15·1 answer
  • Match the change to its definition.
    15·1 answer
  • I need help writing a LAB REPORT about NATURAL SELECTION
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!