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
ElenaW [278]
3 years ago
14

Which of the following is ONE of the signs of a chemical change

Chemistry
2 answers:
Vlada [557]3 years ago
7 0
Which ONE please can you show the signs
pickupchik [31]3 years ago
6 0

Answer:

um i one of what?

Explanation:

You might be interested in
Which diagram shows a pair of electrons that have opposite spins?<br> 011<br> 1<br> 011<br> o 11h
Neporo4naja [7]

Answer:

1 one is the right........

5 0
3 years ago
What is the relationship between the food we eat and the energy in our body
zalisa [80]
The food we eat is can sometimes bo bad or good but it relates to the energy in our because it turns into energy and then we have strenght to do something and stay healthy.
8 0
3 years ago
The particles in a gas vibrate faster than the particles in a liquid.<br> True<br> False
NISA [10]

Answer:

true

Explanation:

4 0
3 years ago
Read 2 more answers
PLZZZZZ HELP MEEEEEE
Masja [62]

Answer:

0.0745 mole of hydrogen gas

Explanation:

Given parameters:

Number of H₂SO₄ = 0.0745 moles

Number of moles of Li = 1.5107 moles

Unknown:

Number of moles of H₂ produced = ?

Solution:

To solve this problem, we have to work from the known specie to the unknown one.

The known specie in this expression is the sulfuric acid,  H₂SO₄. We can compare its number of moles with that of the unknown using a balanced chemical equation.

   Balanced chemical equation:

                    2Li   +     H₂SO₄   →   Li₂SO₄   +   H₂

 From the balanced equation;

     

Before proceeding, we need to obtain the limiting reagent. This is the reagent whose given proportion is in short supply. It determines the extent of the reaction.

           2 mole of Li reacted with 1 mole of  H₂SO₄

          1.5107 mole of lithium will react with \frac{1.5107}{2}  = 0.7554mole of H₂SO₄

But we were given 0.0745 moles,

This suggests that the limiting reagent is the sulfuric acid because it is in short supply;

   

   since 1 mole of sulfuric acid produced 1 mole of hydrogen gas;

    0.0745 mole of sulfuric acid will produce 0.0745 mole of hydrogen gas

4 0
3 years ago
Why do you think most lampshades are made of translucent materials instead of transparent materials?
Gala2k [10]

Explanation:

because translucent shades lets the light through easily (gentle diffusion)

6 0
2 years ago
Other questions:
  • WOULD YOU TRUST ME WITH YOUR NUMB ER
    7·2 answers
  • What kind of compound has two atoms in it
    11·1 answer
  • A thermos contains 150 cm3 of coffee at 85 ????C. To cool the coffee, you drop two 11-g ice cubes into the thermos. The ice cube
    12·1 answer
  • Infer: Is the reaction below possible? Explain why or why not. H2O + NaOH NaCl + H2
    7·1 answer
  • A 10.0 g ice cube is placed into 250 g of water with an initial temperature of 20.0 C. If the water drops to a temperature of 16
    8·1 answer
  • 2.
    8·1 answer
  • Which refers to the force that one massive object exerts to attract another object?
    15·2 answers
  • Each time the boy breathes, he exhales 0.5012 L of gas. How many moles of gas does he exhale?​
    11·1 answer
  • Please help! Choose one of the chemical reactions seen in the images on the last activity 1. Explain what happens in terms of en
    9·1 answer
  • Express the frequency in inverse seconds. n=5--&gt;n=1
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!