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
NemiM [27]
3 years ago
15

Vhen 2.0 moles of magnesium reacts, how many liters of oxygen gas, O2, are needed at STP conditions?

Mathematics
1 answer:
Rasek [7]3 years ago
8 0

Answer:

22.4 litres

Step-by-step explanation:

Reaction:

2Mg (s) + O2 (g) → 2 MgO (s)

From the reaction, we know that 2 moles of Mg (s) react with 1 mol of O2

STP conditions mean:

  • absolute temperature of 273.15 K
  • absolute pressure of 1 atm

Using the equation of state for ideal gases:

PV = nRT

where P is the absolute pressure, T is the absolute temperature, n are the moles, V is the volume, and R is the gas constant = 0.082 atm*L/(mol*K). Solving for V and replacing:

V = nRT/P

V = 1*0.082*273.15/1

V = 22.4 litres

You might be interested in
A factory produces 80,000 candies each day. They produce equal quauntities of four flavors cherry lemon orange and strawberry. T
Stells [14]

Answer: \dfrac14

Step-by-step explanation:

Given: The factory produces equal quantities of four flavors cherry lemon orange and strawberry.

Let  orange candy= cherry = lemon = strawberry  = x

Total candies = x + x + x + x= 4x

The probability that a randomly selected candy is orange = \dfrac{x}{4x}=\dfrac14

Hence, the probability that a randomly selected candy is orange = \dfrac14

3 0
3 years ago
What happens when a line segment is dilated from a point on the line?
irina [24]

Answer:

Step-by-step explanation:

Concept 3: The dilation of a line segment is longer or shorter in the ratio given by the scale factor. If the scale factor is greater than 1 (k > 1), the image will be larger than the pre-image, making the segments (sides) of the image longer than the corresponding sides of its pre-image (an enlargement).

3 0
2 years ago
Please help me if you can. Please also write how you got the answer thank you.
vaieri [72.5K]

Answer:

The three numbers are 341, 342, and 343

Step-by-step explanation:

We start by assigning X to the first integer. Since they are consecutive, it means that the 2nd number will be X + 1 and the 3rd number will be X + 2 and they should all add up to 1026. Therefore, you can write the equation as follows:

(X) + (X + 1) + (X + 2) = 1026

To solve for X, you first add the integers together and the X variables together. Then you subtract three from each side, followed by dividing by 3 on each side. Here is the work to show our math:

X + X + 1 + X + 2 = 1026

3X + 3 = 1026

3X + 3 - 3 = 1026 - 3

3X = 1023

3X/3 = 1023/3

X = 341

Which means that the first number is 341, the second number is 341 + 1 and the third number is 341 + 2. Therefore, three consecutive integers that add up to 1026 are 341, 342, and 343.

341 + 342 + 343 = 1026

We know our answer is correct because 341 + 342 + 343 equals 1026 as displayed above.

6 0
3 years ago
Given the function ƒ(x) = x 2 - 4x - 5 Identify the zeros using factorization. Draw a graph of the function. Its vertex is at (2
s344n2d4d5 [400]
The zeroes of the equation are 5, -1
6 0
3 years ago
Brainliest...don’t need an explanation
Setler79 [48]
Answer:

13-0.75w+8x
13-0.75(12)+8(1/2)
13-9+4
4+4
8
4 0
3 years ago
Read 2 more answers
Other questions:
  • What additional information is needed to prove triangle LMN is congruent to triangle KMN using the HL theorem?
    7·2 answers
  • Charlie has an adult Netherlands dwarf rabbit that weighs 1.2 kilograms. Cliff's adult Angora rabbit weighs 2.9 times as Charlie
    15·2 answers
  • Prime number between 60 and 80 with the 10’s digit being one less than the 1st digit
    10·1 answer
  • Need the answer to this.
    9·1 answer
  • An equilateral triangle has sides of equal length. Find the dimensions of an equilateral triangle with a perimeter of 45 inches.
    10·1 answer
  • Lee needs to mix 3.5 gallons of liquid fruit punch concentrate with 3
    13·1 answer
  • Please someone help me with this
    15·1 answer
  • Evaluate the expression 5(-3) using a number line.​
    13·2 answers
  • FREE BRAIN!! TO THE FIRST PERSON
    10·2 answers
  • Find the solution set. 7x^2-5x-2=0
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!