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
DiKsa [7]
2 years ago
10

Each element has a unique number of _____

Chemistry
2 answers:
Maksim231197 [3]2 years ago
5 0

Answer:

PROPERTIES! HOPE THIS HELPS! :)

Explanation:

Salsk061 [2.6K]2 years ago
3 0

Answer:

Properties

Explanation:

You might be interested in
Which statement best explains why gneiss is composed of layers but there are no layers in granite?
Mandarinka [93]

Gneiss is a sedimentary rock and granite is a metamorphic rock.

<h3>What are rocks?</h3>

Rocks are geological hard materials that are made up of various types which include:

  • Sedimentary rocks: These are rocks that made up of various layers formed from sediments. Example is the gnesis.

  • Metamorphic rocks: These are rocks that are form from pre existing rocks that undergoes some transformation. Example is granite

Therefore, Gneiss is a sedimentary rock and granite is a metamorphic rock.

Learn more about rocks here:

brainly.com/question/398139

#SPJ1

8 0
2 years ago
What mass of f2 is needed to produce 120. g of pf3 if the reaction has a 78.1% yield?
lesya692 [45]

write the equation for the reaction

that is 6 F2 +P4 =4 PF3

find the theoretical mass that is

let the theoretical yield be represented by y

theoretical yield = 78.1/100 = 120/y

y= 153.6 grams

find the number of moles of  PF3

moles = mass/molar mass

= 153.6/87.97 =1.746 moles

by use of mole ratio between  F2 :PF3 which is 6:4 the moles of F2 is therefore= 1.746 x 6/4 = 2.62 moles

mass = moles x molar mass

= 1.746 moles x38 g/mol = 99.6 grams

6 0
3 years ago
What are fluids? Why are they so called?​
navik [9.2K]

Answer:

<em>Liquids and gases are called fluids because they can be made to flow, or move.</em>

<em> In any fluid, the molecules themselves are in constant, random motion, colliding with each other and with the walls of any container.</em><em> </em><em>So</em><em> </em><em>that</em><em> </em><em>they're</em><em> </em><em>called</em><em> </em><em>fluids</em><em>.</em>

8 0
3 years ago
Read 2 more answers
Name a food that contain an acid​
Triss [41]

Answer:

name a food that contain an acid

1. nuts

2. dairy

3. grains

3. meat

5 0
3 years ago
Read 2 more answers
Atoms of which two elements have a combined total of 23 protons?
Alik [6]

Answer:

A

Explanation:

Sodium has 11 electrons and Magnesium has 12 electrons. Since here you need to consider atoms, they must have equal amount of protons as electrons to be considered neutral, and so an atom.

So simply 11+12 =23

6 0
2 years ago
Other questions:
  • How does heavy water in a nuclear reactor help to keep the chain reaction going?
    14·1 answer
  • Explain how elements are arranged on the periodic table. In other words, explain why they are not just listed in one long list,
    6·1 answer
  • An experiment reacts 20.4 g of zinc metal with a solution containing an excess of iron (III) sulfate. After the reaction, 10.8 g
    15·2 answers
  • If the chemical properties of a substance remain unchanged and the appearance or shape of an substance changes it is called a
    5·2 answers
  • Covalent bonds in a molecule absorb radiation in the IR region and vibrate at characteristic frequencies.
    6·1 answer
  • Please help me with this
    11·2 answers
  • Who made the periodic table
    5·2 answers
  • What is the weight in grams of 1 mole of ammonium sulfate (NH4)2SO4
    5·1 answer
  • Is -280 f degrees hot or cold
    13·2 answers
  • If 0.62 moles of KClO3 is decomposed, how many grams of O2 are produced?<br><br> 2KClO3 → 2KCl + 3O2
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!