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
Anit [1.1K]
3 years ago
7

PLEASE HELP!! I WILL MARK THE 1st ONE BRAINLIEST!

Chemistry
1 answer:
allsm [11]3 years ago
6 0

Answer:

I hope you do well on the test good luck

Explanation:

You might be interested in
How many moles are there in 5.699 liters of neon gas at STP? Express your answer with the appropriate significant figures and un
Svetradugi [14.3K]

Answer:

The number of moles: 0.25442 moles

Explanation:

One mole of Neon gas will occupy 22.4 at STP.

5.699L consists of \frac{5.699}{22.4} = 0.25442 moles.

4 0
3 years ago
What part of the water cycle involves the leaves of plants
zvonat [6]

Answer: The answer to this question is transpiration.

Explanation: I know this answer because i looked it up in a book. The other explanation is I study about this a lot.

5 0
3 years ago
Propane burns according to the following equation:
GarryVolchara [31]

Answer:

a. 324 mL is the volume of CO₂ measured

b. 0.223 moles of carbonate

Explanation:

a. We determine the moles of used O₂ by the Ideal Gases Law

STP are 1 atm of pressure and 273.15K of T°

We convert the volume from mL to L → 0.465 mL . 1L/ 1000 mL = 0.465 L

Now, we replace data: 1 atm . 0465L = n . 0.082 . 273.15K

 1 atm . 0465L / 0.082 . 273.15K  = n → 0.0207 moles

The balanced combustion is: C₃H₈(g) + 5O₂(g) → 3CO₂(g) + 4H₂O(g)

Ratio is 5:3. 5 moles of oxygen are needed to produce 3 moles of CO₂

Then 0.0207 moles must produce (0.0207 . 3) / 5 = 0.0124 moles of CO₂

Let's apply again the Ideal Gases Law. Firstly we convert:

37°C + 273.15K = 310.15K

98.59kPa . 1atm / 101.3 kPa = 0.973 atm

0.973atm . V = 0.0124 mol . 0.082 . 310.15K

V = (0.0124 mol . 0.082 . 310.15K) / 0.973atm = 0.324 L → 324 mL

b. The reaction is: CaCO₃(s) → CaO(s) + CO₂(g)

We used the Ideal Gases Law to determine the moles of produced CO₂

P . V = n . R . T → P .V / R . T = n

We replace data: 1 atm . 5L / 0.082 . 273.15K = 0.223 moles

As ratio is 1:1, 0.223 moles of CO₂ were produced by the decomposition of 0.223 moles of carbonate

6 0
3 years ago
BRAINLIESTTT ASAP! PLEASE HELP ME :)<br><br> Don't mind my answer... I clicked on it by accident.
MatroZZZ [7]

Answer:

○ Both electrons of Mg should be transferred to one O atom because the formula is MgO.

Explanation:

First, figure out the charges of each element:

Oxygen → Group 16 [−2]

Magnesium → Group 2 (Alkaline Earth Metals) [+2]

In this case, both charges are one-to-one, meaning they cancel each other out [opposite of each other], giving you this, from metal to non-metal:

Mg^{+2}O^{-2} → MgO

I am joyous to assist you anytime.

4 0
3 years ago
Which of the following devices provides the most protection against a contaminated environment?
Mumz [18]
Is there multiple choice?
4 0
3 years ago
Read 2 more answers
Other questions:
  • Pls answer the question
    11·2 answers
  • 1-propanol (P1° = 20.9 Torr at 25 °C) and 2-propanol (P2° = 45.2 Torr at 25 °C) form ideal solutions in all proportions. Let x1
    10·1 answer
  • How do you convert grams of zinc to moles of zinc
    12·1 answer
  • The air inside a bicycle tire pump has 27 joules of heat conducted away from while 77.9 joules of work done are being done on it
    12·1 answer
  • True or False Bay is an estuary that contains diverse organisms​
    15·1 answer
  • Research to find out 5 uses of magnets in our daily life in medical contexts, route finding, security, sorting steel from other
    8·1 answer
  • How do you balance the following equation only using coefficients?
    15·1 answer
  • Describe un modelo matemático para representar lo que sucede en cada una de las reacciones químicas  (incluye toda la simbología
    7·1 answer
  • At a fixed pressure, if the temperature is doubled, the volume of a gas will be
    15·1 answer
  • When each of the following pairs of aqueous solutions is mixed, does a precipitation reaction occur? If so, write balanced molec
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!