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
GREYUIT [131]
3 years ago
15

Help please I really need it. :(

Chemistry
1 answer:
stich3 [128]3 years ago
7 0

Answer:

the second answer

Explanation:

You might be interested in
An athlete can run 4 m/s. How far can she run in 3 minutes?<br>​
shutvik [7]

Answer:

720

Explanation:

4 m/s

<u>60</u> seconds

                            = 180 seconds

<u>3</u> minutes

<u>4</u> m/s

                             = <u>720 m/s</u>

<u>180</u> seconds

5 0
3 years ago
Quien quiere ser mi amigo
vfiekz [6]

Answer:

Me encantaría

Explanation:

7 0
3 years ago
Is this a scientific model? Use complete sentences to explain why or why not
Fittoniya [83]

Answer:

it is

Explanation:

8 0
3 years ago
At 20.°C, a 1.2-gram sample of Mg ribbon reacts rapidly with 10.0 milliliters of 1.0 M HCl(aq). Which change in conditions would
Pavlova-9 [17]

Answer: (2) decreasing the concentration of HCl(aq) to 0.1 M

Explanation: Rate of a reaction depends on following factors:

1. Size of the solute particles: If the reactant molecules are present in smaller size, surface of particles and decreasing the size increases the surface area of the solute particles. Hence, increasing the rate of a reaction.  

2. Reactant concentration: The rate of the reaction is directly proportional to the concentration of reactants.

3. Temperature: Increasing the temperature increases the energy of the molecules and thus more molecules can react to give products and rate increases.

(1) Increasing the initial temperature to 25°C will increase the reaction rate.

(2) Decreasing the concentration of HCl(aq) to 0.1 M will decrease the reaction rate due to lesser concentration.

(3) Using 1.2 g of powdered Mg will increase the reaction rate due to large surface area.

(4) Using 2.4 g of Mg ribbon will increase the reaction rate due to high concentration of reactants.

7 0
3 years ago
Read 2 more answers
For any point on earths surface its height above sea level is called its
DedPeter [7]
Altitude, If this helped please 5 star me 
6 0
3 years ago
Read 2 more answers
Other questions:
  • How could the survivors about starting a fire?
    7·1 answer
  • When a sodium atom bonds with a chlorine atom , it acquires positive charge true or false?
    11·2 answers
  • Properties that can be seen through direct observation are called
    14·1 answer
  • Calculate the volume of a 2.30 mol/L solution of Na2CO3 that contains 0.325 mol of solute.
    9·1 answer
  • What types of reactions is shown below? check all that apply 2H2O2–&gt;2H2O+O2
    10·2 answers
  • ITS A TEST PLS HURRY!!!​
    15·1 answer
  • What is the air pressure on top of the mountain?
    9·1 answer
  • How many atoms are present in a sample of Calcium (Ca) weighing 127.38g?
    6·1 answer
  • Which element has a greater ionization energy, rubidium or iodine?
    6·1 answer
  • Then, explain how natural resources are identified and why natural resources are unevenly distributed. Be sure to use informatio
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!