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
valkas [14]
2 years ago
7

Which action is a change in state

Chemistry
1 answer:
JulsSmile [24]2 years ago
6 0

Answer: A dissolving

You might be interested in
Two children are waiting to go down a slide the first child goes down and then stays sitting at the bottom of the slide if there
Anon25 [30]

its b got it right on quiz

5 0
2 years ago
Two atoms of the same substance wi the different numbers of neutrons are called what
sattari [20]
They are called ISOTOPES.
:)
4 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
What is one difference between an electron and a neutron?
VARVARA [1.3K]

Answer: Neutron has no charge, electron has a charge and mass. Neutron occurs inside the nucleus where electron is seen outside the nucleus.

Explanation:

5 0
3 years ago
Which method preserves an image of a leaf?.
Sav [38]

Answer:

Tree sap flows over the leaf and preserves it.

Explanation:

Amber would preserve the image.

5 0
3 years ago
Read 2 more answers
Other questions:
  • Identify the number of significant figures in each measurement. Type the correct answer in each box. Use numerals instead of wor
    15·2 answers
  • To make a table of the elements, dimitri Mendeleev sorted the elements according to their?
    8·2 answers
  • 24. Scientists usually work<br> a in teams<br> b. alone<br> C. in labs<br> d. by committee
    15·1 answer
  • There are different atoms and each type of atom is called an​
    11·1 answer
  • Which is a strong base? HCl NaOH NH3 H3CO3
    8·1 answer
  • What is indicated by the methyl-prefix?
    9·1 answer
  • Which type of bond and how many bonds would occur as carbon dioxide (CO2) is formed from carbon in Group IVA and oxygen in Group
    12·1 answer
  • Write each formula to solve for density, volume and mass.
    5·1 answer
  • Why are there sometimes warm days during a cold winter? (not chemistry, its actually science)
    9·1 answer
  • The beakers on the left and right both contain the same amount of HCL (liquid) and the same mass of calcium carbonate (solid). I
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!