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
Brrunno [24]
3 years ago
14

A reaction occurs when solid X is placed into solution Y. As a result, the temperature of the new solution increases by 3°C.

Chemistry
1 answer:
zzz [600]3 years ago
6 0
It increases the number of molecular collisions.
You might be interested in
The graph shows the changes in the phase of ice when it is heated.
mina [271]

Answer:

100 degree celcius, because it is the melting point of ice ob

6 0
3 years ago
What do you think of my lab report so far?
8090 [49]
Fix ur transition, it sounds choppy

5 0
3 years ago
Read 2 more answers
A sample of hydrated cobalt (II) chloride has a mass of 5.22 g. After heating, it has a mass of 2.85 g. What is the percent by m
Tom [10]
Answer:
mass of water in hydrate = 2.37 grams

Explanation:
The mass of the hydrated cobalt (III) chloride is the summation of the salt and the water it contains.
This means that:
Total mass of sample = mass of salt + mass of water

Now, we are given that:
total mass of sample = 5.22 grams
mass of salt = mass of sample after heating = 2.85 grams

Substitute to get the mass of water as follows:
5.22 = mass of water in hydrate + 2.85
mass of water in hydrate = 5.22 - 2.85
mass of water in hydrate = 2.37 grams

Hope this helps :)
5 0
3 years ago
Read 2 more answers
JWL 3.R 1.096776 x 107 m) L) 384.6 nm C) 683.8 nm D) 1282 nm E) >1500 nm Ans: D According to the Rydberg equation, the line w
sesenic [268]

Answer:

91.2 nm

Explanation:

The Rydberg equation is given by the formula

     1/ λ  = Rh ( 1/ n₁² - 1/ n₂²)

where

λ is the wavelength

Rh is Rydberg constant

and n₁ and n₂ are the energy levels of the transion.

We can see from this equation that the wavelength is inversely proportional to the difference of the squares of the inverse of the quantum numbers n₁ and n₂. It follows then that the smallest wavelength will be given when the the transitions are between the greatest separation between n₁ and n₂ whicg occurs when n1= 1 and n₂= ∞ , that is the greater the separation in energy levels the shorter the wavelength.

Substituting for n₁ and n₂ and solving for λ :

  1/λ = 1.0974 x 10⁷ m⁻¹ x ( 1/1² -1/ ∞²)  =  1.0974 x 10⁷ m⁻¹ x ( 1/1² - 0) =

  λ = 1/1.0974 x 10⁷ m = 9.1 x 10⁻8 m = 91.2 nm

4 0
3 years ago
How many grams of hydrogen gas are needed to react completely with 54.0 g of oxygen gas, given the following balanced chemical r
Shkiper50 [21]

Answer:

6.75g of hydrogen will completely react with 54g of oxygen

Explanation:

6 0
2 years ago
Other questions:
  • The investigator applies a brief electrical stimulus that causes the potassium channels to open. There are no HCO3- channels, th
    6·1 answer
  • Which of the following salts is the least soluble in water?
    11·2 answers
  • uppose a system consists of 50 mg of organic compound dissolved in 1.00 mL of water (solvent 1). Compare the effectiveness of on
    15·1 answer
  • Suppose you have a solution that is either an acid or a base. It doesn’t react with any metals. Is the pH of the solution more l
    11·1 answer
  • if you make a solution by dissolving 1.0 mol of Fecl3 into 1 kg of water how would the osmotic pressure of this solution compare
    7·2 answers
  • A population of Esherichia coli is given time to grow for eight generations. The final population is 1,996,800 cells. What was t
    6·1 answer
  • Melting point of a substance is what kind of property?
    6·2 answers
  • Question 1
    6·1 answer
  • : If k is Kendra’s present age, write an expression for her age eight years ago. A. k + 8 B. 8 - k C. 8 + k D. k - 8
    15·1 answer
  • Using the periodic table only, arrange the members of each of the following sets in order of increasing bond strength:
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!