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
Nezavi [6.7K]
2 years ago
13

Who got insta gramm because I need help with my science assignment I’ll pay u 30$ cashapp or PayPal if it’s right I need a good

grade
Chemistry
1 answer:
g100num [7]2 years ago
3 0
Okay yeah sure you don’t need to pay me tho
You might be interested in
Hurry need answer as soon as possible please . Compare the type of change that occurs when a substance melts and when a substanc
tamaranim1 [39]

Answer:

Explanation:

A substance melting is a physical change and the properties of the substance will remain same, only that the substance will just become liquid.

On the other hand, burning is a chemical change which produces an entirely new compount(in most cases, ash) which does not have the same properties as the original object

5 0
3 years ago
You have 2.2 mol Xe and 2.0 mol F₂, but when you carry out the reaction you end up with only 0.25 mol XeF₄. What is the percent
alexira [117]

Answer:

The correct answer is 25 %

Explanation:

According to the chemical reaction:

Xe(g) + 2 F₂ (g) → XeF₄ (g)

1 mol of Xe(g) reacts with 2 mol of F₂(g), so the stoichiometric ratio os reactants is 2 mol F₂/mol Xe.

We have 2.2 mol Xe and 2.0 mol F₂, so the ratio is:

2.0 mol F₂/2.2 mol Xe = 0.909 mol F₂/mol Xe

The molar ratio of reactant we have is lower than the required, so F₂ is the limiting reactant.

By using the limiting reactant, we calculate the theoretical amount of product (XeF₄). For this, we know that 1 mol of XeF₄ is formed from 2 mol of F₂ (1 mol XeF₄/ 2 mol F₂), and we have 2.0 mol F₂:

2.0 mol F₂ x (1 mol XeF₄/ 2 mol F₂)= 1 mol XeF₄

If we only obtained 0.25 mol XeF₄, the percent yield of the experiment is:

Yield = experimental amount/theoretical amount x 100%

        = 0.25 mol XeF₄/ 1 mol XeF₄ x 100% = 25 %

8 0
3 years ago
They saw that the rock was deep purple. A quantitative B qualitative
Anika [276]
I think B qualitative is the answer
7 0
3 years ago
Read 2 more answers
Which hydrocarbon name adheres correctly to the IUPAC naming system? 3–ethyl–2,4–dimethylhexane 3–methethyl–2,dimethylhexane 4–d
faltersainse [42]
3–ethyl–2,4–dimethylhexane

CH₃-CH(CH₃)-CH(C₂H₅)-CH(CH₃)-CH₂-CH₃
4 0
3 years ago
The chemical properties of calcium are most similar to the chemical properties of
Ket [755]
The answer is (3) Mg because Ca and Mg are in the same group (group 2). 
Hope this helps~
3 0
3 years ago
Other questions:
  • The amount of energy in the bonds of the reactants plus any energy absorbed equals the amount of energy in the bonds of the prod
    5·2 answers
  • Which of the following is a matter phase in which the molecules are arranged on a matrix and close together a. Gas b. Liquid c.
    8·2 answers
  • How could a chemical change create sound
    14·1 answer
  • Read the statement.
    12·1 answer
  • if 15 mol C is mixed with 10 mol O2 which reactant is the limiting reactant? Which reactant would be the excess reactant?
    8·1 answer
  • What is the study of the cryosphere called?
    13·1 answer
  • Jumping on a cemented floor is more pain full than a sandy flour,why​
    15·1 answer
  • Assume you mixed 5 µl of your cod fish homogenate with 195 µl working solution. The fluorometer displays a measurement of 12.2 µ
    15·1 answer
  • Equal but opposite forces acting on an object results in what?
    10·1 answer
  • Write balanced nuclear equations for the following:(a) β⁻ decay of silicon-32
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!