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
aivan3 [116]
3 years ago
12

I need help with all of these questions

Chemistry
1 answer:
mafiozo [28]3 years ago
7 0
Number five is decrease
You might be interested in
As a liquid is added to a beaker, the pressure exerted by the liquid on the bottom of the beaker does what
ololo11 [35]
So if you put a holo ball of paper in the water it sinks and as it sinks it gets smaller cuse pressure so it cuseus things to shrink cuse of pressure
5 0
2 years ago
How many moles of oxygen gas occupy 67.2 L of volume at STP?<br> A 0.333<br> B 3.00<br> C 1.00
posledela

Answer:

I would say b hope this helps

Explanation:

have a good day btw i had this question before:D

7 0
3 years ago
A sample compound contains 9.11 g Ni and 5.89g F. What is the empirical formula of this compound?
Alexxx [7]

The empirical formula of the compound is C. NiF₂.

<em>Step 1</em>. Calculate the <em>moles of each element</em>

The empirical formula is the simplest whole-number ratio of atoms in a compound.

The ratio of atoms is the same as the ratio of moles.

So, our job is to calculate the molar ratio of Ni to F.

Moles of Ni = 9.11 g Ni × (1 mol Ni /(58.69 g Ni) = 0.1552 mol Ni

Moles of F = 5.89 g F × (1 mol F/19.00 g F) = 0.3100 mol F

<em>Step 2</em>. Calculate the <em>molar ratio</em> of the elements

Divide each number by the smallest number of moles

Ni:F = 0.1552:0.3100 = 1:1.997 ≈ 1:2

<em>Step 3</em>: Write the <em>empirical formula</em>

EF = NiF₂

8 0
3 years ago
Read 2 more answers
The entropy of an exothermic reaction decreases. This reaction will be spontaneous under which of the following temperatures?
kakasveta [241]

Answer:Low temperatures

Explanation:

∆G= ∆H-T∆S

If ∆H is negative (exothermic reaction), then in order to maintain ∆G<0 which is the condition for spontaneity; T must decrease. This is because, decrease in T will keep the difference of ∆H and T∆S at a negative value in order to satisfy the above stated condition for spontaneity.

3 0
3 years ago
Read 2 more answers
What is the definition of bond?
JulijaS [17]
Join or be joined securely to something else, typically by means of an adhesive substance, heat, or pressure.
3 0
2 years ago
Other questions:
  • How can water be used for energy ?
    11·2 answers
  • What is the half life of a radioisotope if you started with 1 gram and 0.250 grams is left over after 6 days?
    12·1 answer
  • A solution of salt water is boiled. The water evaporates and solid salt remains. Which statement is true?
    13·2 answers
  • For a certain reaction A → products a plot of ln[A] vs. time produces a straight line with a slope of −3.0×10−2 s−1. Which of th
    15·1 answer
  • Analyze: What do the elements in each column of the periodic table have in common?
    6·1 answer
  • What is the most important role that water plays for living organisms
    12·2 answers
  • Anwser this ASAP please
    8·1 answer
  • Where are digestive enzymes found in the body
    9·2 answers
  • What is one benefit that nuclear power plants currently provide for our environment?
    9·2 answers
  • What is the chemical equation for foam fight
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!