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
Masja [62]
3 years ago
5

What are some two interesting questions you have about constellations?

Chemistry
2 answers:
jok3333 [9.3K]3 years ago
5 0

Answer:

What are the 12 major constellations?

What is the largest constellation?

Explanation:

viva [34]3 years ago
4 0
What are constellations and what is it about?
You might be interested in
Identify the information that can be included in a chemical equation. Check all of the boxes that apply. how long the reaction t
Soloha48 [4]

the states of the reactants and products

the temperature and pressure at which the reaction was carried out

the relative amounts of reactants and products

the type of catalyst that is used to speed up the reaction

whether the reaction can go in both directions

Explanation:

A chemical equation is an equation that shows how the reactants are combining together to give the products.

The following are the information to include when writing a chemical equation;

  • the states of the reactants and products

whether solid, liquid or gases or aqueous, It is usually appended as a subscript in bracket

  • the temperature and pressure at which the reaction was carried out

  this shows the condition under which the reaction was carried out. It also gives useful information that can be used to quantitatively determine heat changes in a reaction.

  • the relative amounts of reactants and products

this is usually derived from the balanced equation. They are the numbers appended at the beginning of the species in the equation

  • the type of catalyst that is used to speed up the reaction

 it is a good practices to provide the information about the catalyst used.

  • whether the reaction can go in both directions

→ signifies one direction

⇔ both directions

learn more:

Chemical equation brainly.com/question/2924195

#learnwithBrainly

6 0
4 years ago
Read 2 more answers
Given: h2o(aq) + h2o(l) h3o+(aq) + oh–(aq) δh°rxn > 0 when the temperature of a sample of pure water is raised above 25°c,
sesenic [268]
When Δ H > 0 that means this is an endothermic reaction, and we can assume heat as one of the reactants. SO when the temperature increases so the reaction will move rightward to decrease the reactants and increase the products and as the products increase it will make the Kw increase also as
 Kw = [Products] /[reactants].

So our answer will be: the value of Kw will increase.
7 0
3 years ago
Write a formula for the ionic compound that forms from each pair of elements. sodium and sulfur
larisa86 [58]
Na: +1  (sodium)
S: -2 (sulfur)
=> Na2S
5 0
3 years ago
Nicotine is responsible for the addictive properties of tobacco. assume kb1 = 1.0×10-6 and kb2 = 1.3×10-11 . determine the ph of
Naddika [18.5K]
If we abbreviate the formula for nicotine as Nic, then the equations for two different equilibria of Nic in water are 
     Nic + H2O ---> NicH+ + OH- 
     NicH+ + H2O ---> NicH2 2+ + OH-  

We can write the Kb1 expression for the first equation as 
     Kb1 = 1.0×10^-6 = [NicH+][OH-] / [Nic] 
     1.0×10^-6 = x^2 / 1.85×10^-3 - x 
Approximating that x is negligible compared to 1.85×10^-3 simplifies the equation to   
     1.0×10^-6 = x^2 / 1.85×10^-3 
     x = 0.0000430 
     x = [OH-] = 4.30×10^-5 M  

From the Kb2 expression 
     Kb2 = 1.3×10-11 = [NicH2 2+][OH-] / [NicH+]  
     1.1×10^-10 = x^2 / 4.30×10^-5 - x 
Approximating that x is negligible compared to 4.30×10^-5 simplifies the equation to 
     1.1×10^-10 = x^2 / 4.30×10^-5 
     x =  [OH-] = 6.88×10^-8  

The concentration [OH-] can be computed as 
     [OH-] = 4.30×10^-5 M + 6.88×10^-8 M = 4.30×10^-5 M  
This shows that the second equilibrium has a negligible effect on the pH.  

We can now calculate for pH:   
     pOH = -log [OH-] = -log (4.30×10^-5 M) = 4.37 
     pH = 14 - pOH = 14 - 4.37 = 9.63
7 0
4 years ago
How many grams of Aluminum (Al) react when 204 g of Aluminum Oxide (A1203) is producen?
kow [346]
Answer B for Plato I just answer this question
8 0
4 years ago
Other questions:
  • How do you find the molar mass for ba(NO3)2
    9·1 answer
  • Select all of the answers that apply. Water _____. has a pH of 0 can dissolve most substances contains dissolved minerals expand
    9·2 answers
  • subtract the mass of the filter paper (0.27 g) from the mass of the paper and copper (0.98 g). Record the difference in the data
    6·1 answer
  • The value of ΔGo for the precipitation reaction,
    13·1 answer
  • German scientist alfred wiener is best known for what hypothesis?
    7·1 answer
  • Magnesium oxide can be made by heating magnesium metal in the presence of the oxygen. The balanced equation for the reaction is
    14·1 answer
  • Whats a particle of electormagnetic radiation
    14·1 answer
  • How to collect sulfur trioxide gas
    12·1 answer
  • Diagram of mass spectroscopy​
    5·1 answer
  • Compared to a solution with a ph value of 7, a solution with a thousand times greater hydronium ion concentration has a ph value
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!