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
klio [65]
3 years ago
14

What is the more reactive metal CA or Ra

Chemistry
2 answers:
Anit [1.1K]3 years ago
8 0
Ra (radium) is the most reactive
Greeley [361]3 years ago
4 0
Da is more reactive
You might be interested in
Please help! Will give brainliest!!!
Jlenok [28]
D. Liquid Nitrogen is much colder than Water.
5 0
3 years ago
Copper produces a green flame test. When is the green light emitted?​
belka [17]

Answer: When you burned the skewer tip coated with copper sulfate the green light is emitted

Explanation:

when the copper is burned it makes a green light

8 0
3 years ago
How many mole of oxygen are present in 3 mole of sodium sulfate, Na2SO4
GarryVolchara [31]
N(Na₂SO₄)=3 mol

n(O)=4n(Na₂SO₄)

n(O)=4*3=12 mol
3 0
3 years ago
A 200.0mL closed flask contains 2.000mol of carbon monoxide gas and 2.000mol of oxygen gas at the temperature of 300.0K. How man
max2010maxim [7]

Answer:

There will react 0.400 moles of oxygen.

Explanation:

<u>Step 1:</u> Data given

Volume of the closed flask = 200.00 mL = 0.2 L

Number of moles of CO = 2.000 mol

Number of moles of O2 = 2.000 mol

Temperature = 300.0 K

Pressure decreases with 10%

<u>Step 2</u>: The balanced equation

2CO(g)+O2(g)⟶2CO2(g)

<u>Step 3</u>: Calculate the initial pressure of the flask before the reaction

P = nRT/V

⇒ with n = the number of moles (2.000 moles CO + 2.000 moles O2 = 4.000 moles)

⇒ R is gas constant (0.08206 atm*L/mol*K)

⇒T = the  temperature = 300.0K

⇒ V = the volume = 200.0 mL = 0.2 L

P = (4 * 0.08206*300)/0.2

P = 492.36 atm

<u>Step 4:</u> When the pressure is 10 % decreased:

The final pressure = 492.36 - 49.236 = 443.124 atm

<u>Step 5:</u> Calculate the number of moles

n = PV/RT

⇒ with n = the number of moles

⇒ with P = the pressure = 443.124 atm

⇒ V = the volume = 200.0 mL = 0.2 L

⇒ R is gas constant (0.08206 atm*L/mol*K)

⇒T = the  temperature = 300.0K

n =(443.124*0.2)/(0.08206*300)

n = 3.6 moles = total number of moles

<u>Step 6:</u> Calculate number of moles

For the reaction :2CO(g) + O₂(g) ⟶ 2CO₂(g)

For each mole of O2 we have 2 moles of CO, to produce 2 moles of CO2

Moles CO = (2 -2X) moles

Moles O2 = (2-X) moles

Moles CO2 = 2X

The total number of moles (4 -X)= 3.6 moles

Where X are moles that react

X = 0.400 moles

There will react 0.400 moles of oxygen.

6 0
3 years ago
A sample of neon gas occupies a volume of 752 mL at
MatroZZZ [7]

Answer:

815mL am 10000000% sure

7 0
3 years ago
Other questions:
  • 18) Why are the large oak trees so important for storks? Where are<br> they found?<br> 1
    8·1 answer
  • ¿En dónde se ubican los lípidos solubles?
    13·1 answer
  • Forming a hypothesis is accomplished through___ reasoning
    6·1 answer
  • The Periodic Table of Elements is organized by the number of:
    7·2 answers
  • Which of the following is necessary for photosynthesis?
    15·1 answer
  • In the pictured reaction, NH4, would be acting as the
    10·1 answer
  • Please help me understand how to...
    14·1 answer
  • Question 3 (2 points)<br> The electromagnetic waves with the lowest frequency are ______ waves.
    13·2 answers
  • Hydrochloric acid and sodium hydroxide can be combined to form sodium chloride and water. Which best explains the reaction?
    14·1 answer
  • Using the data in the tables and Coulomb's law, calculate the energy change for this reaction (per formula unit of KF).
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!