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
postnew [5]
2 years ago
8

In need of some help with this question please~

Chemistry
1 answer:
NeTakaya2 years ago
5 0

Answer:

5.60 Liters at STP

Explanation:

First you need the balanced reaction equation

2 H2 +  O2   ====>   2  H2O

4 g of oxygen ( O<u>2</u> )  is   4/(15.999*2) moles of O2     (using periodic table)

  Twice the number of moles of H2O re produced   (from equation)

     at STP the volume of a mole of gas is 22.4 liter/ mole

       put all of this together  

         2 *   4 / (15.999*2) moles * 22.4 L/mole = 5.60 L

You might be interested in
How many particles are present in 8.0 moles of silver?
Zielflug [23.3K]

Answer:the answer is b

Explanation:I took the test and got it right

3 0
3 years ago
Reasoning you used to decide if something was made of molecules.​
sasho [114]

Answer:

Whether something is a molecule or not depends on the type of bond that is formed when its atoms join together. In general, electrons can be shared between atoms (a molecular bond) or electrons can be completely removed from one atom and given to another (an ionic bond). Molecules have molecular bonds.

6 0
3 years ago
Calculate the molarity of a solution made by dissolving 5.00 g of glucose (C6H12O6) in sufficient water to form exactly 100 mL o
matrenka [14]
I think it’s 2.7 moldm-3
6 0
3 years ago
Read 2 more answers
The energy exchange with the environment during a chemical reaction is called the _____ of reaction.
Allisa [31]
The temperature of reaction.
3 0
3 years ago
Read 2 more answers
A typical person has an average heart rate of 75.0 beats/min. Pay close attention to significant figures in this question.
frozen [14]

The number of beats  the person have in 1.7 years is  6.7 x 10⁷ beats.

<h3>Number of beats of the person</h3>

The number of beats of the person is calculated as follows;

n = bt

where;

  • b is the beat rate
  • n is number of beats
  • t is time or duration

b = 75 beats/min

t = 1.7 years = 893520 mins

n = 75 beats/min x 893520 mins

n = 67,014,000

n = 6.7 x 10⁷ beats

Thus, the number of beats  the person have in 1.7 years is  6.7 x 10⁷ beats.

Learn more about number of beats here: brainly.com/question/28245460

#SPJ1

3 0
1 year ago
Other questions:
  • Which of the following is not a compound?
    15·1 answer
  • How could you ensure that all the spectroscopes used the same calibration line and equation? What would you need to be sure was
    12·1 answer
  • Explain why food chains do not tend to exceed four links.
    13·1 answer
  • Nitric oxide reacts with chlorine to form nocl. the data refer to 298 k. 2no(g) + cl2(g) → 2nocl(g) substance: no(g) cl2(g) nocl
    12·1 answer
  • Na-23 has 12 neutrons. What is its atomic number
    6·1 answer
  • When 18.5 g of HgO(s) is decomposed to form Hg(l) and O2(g), 7.75 kJ of heat is absorbed at standard-state conditions. What is t
    12·1 answer
  • Why is the base of an energy pyramid wider than the top
    7·1 answer
  • How many grams would 3.98 x 10^24 atoms of oxygen weigh
    7·2 answers
  • I need help explaining what are the differences between Solids, Liquids, and Gases.
    9·1 answer
  • PLZZZ HELLPP ASAPP!
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!