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
a_sh-v [17]
3 years ago
11

Which 2 diagrams show suitable methods for investigating the speed of the reaction

Chemistry
1 answer:
7nadin3 [17]3 years ago
3 0
I would say D: 2 and 4.

The first line of the question is very important. X reacts with Y to form a gas.

For 2, we let the gas escape and measure the change in mass during the reaction.

For 4, we capture the change in volume of gas during the reaction.

1 does not work: some of the gas escapes through the cotton and the gas captured is not recorded correctly.

3 does not work: the gas is trapped and the mass balance does not record a change in mass.
You might be interested in
File:
givi [52]

Ummm I just need to answer questions sorry!!!

8 0
3 years ago
Both pyrrole and pyridine are aromatic compounds, and undergo electrophilic aromatic substitution (EAS). Using a resonance argum
soldi70 [24.7K]

Answer:

See attached picture for both electrophillic substitution in pyrole and in pyridine.

Explanation:

5 0
3 years ago
As an atom's nucleus gets larger the electric charges repelling the protons get larger. To compensate for this greater electric
IrinaK [193]
i think the greater the electric charge the atom decreases in size
5 0
3 years ago
Read 2 more answers
Popeye wants to make a dilute spinach solution for Sweetpea's bottle. How much 3.0 M spinach solution should he add to the 500.0
Lynna [10]

Answer : The volume of 3.0 M spinach solution added should be, 50 mL

Explanation :

Formula used :

M_1V_1=M_2V_2

where,

M_1\text{ and }V_1 are the initial molarity and volume of spinach solution.

M_2\text{ and }V_2 are the final molarity and volume of diluted spinach solution.

We are given:

M_1=3.0M\\V_1=?\\M_2=0.30M\\V_2=500.0mL

Now put all the given values in above equation, we get:

3.0M\times V_1=0.30M\times 500.0mL\\\\V_1=50mL

Hence, the volume of 3.0 M spinach solution added should be, 50 mL

8 0
3 years ago
At which temperature would a can of soda be most fizzy when it is opened? 30°C 40°C 20°C 10°C
Helga [31]

The answer to your question is 40° because freezing temp for a liquid is 32°

4 0
2 years ago
Read 2 more answers
Other questions:
  • What do bacteria need to reproduce?
    13·1 answer
  • What is the 10% rule? What is its significance? Why is energy lost?
    7·1 answer
  • Refer to the given oxidation-reduction reaction, which takes place in acidic solution: MnO₄⁻(aq) + Br⁻(aq) → MnO₂(s) + BrO₃⁻(aq)
    12·1 answer
  • Which graph best demonstrates the general relationship between mass and temperature, similar to the trend of thermal energy abso
    14·2 answers
  • With which organisms do fungi partner to produce lichen and Mycorrhizae
    15·1 answer
  • I NEED HELP PLEASE ASAP!! :)<br><br> How many molecules are represented by 3CO2?
    8·2 answers
  • What is the nature of the Ca-Cl bond in a molecule of calcium chloride (CaCl2) if the electronegativity value of calcium is 1.0
    15·1 answer
  • How many molecules are in 10 grams of sugar?
    10·1 answer
  • Which one of your body cells carries proteins that determine your blood type?
    10·1 answer
  • Why do you think neutrons are necessary in the nucleus of an atom?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!