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
Dvinal [7]
3 years ago
14

What is the mystery element of antimony

Chemistry
1 answer:
Flura [38]3 years ago
5 0

Explanation:

La verda que que el misterio se relaciona con lo que tu veas y busques en conocimiento

You might be interested in
How many molecules are in 3 moles of potassium bromide (KBr)
sattari [20]

Answer:

Your strategy here will be to use the molar mass of potassium bromide,

KBr

, as a conversion factor to help you find the mass of three moles of this compound.

So, a compound's molar mass essentially tells you the mass of one mole of said compound. Now, let's assume that you only have a periodic table to work with here.

Potassium bromide is an ionic compound that is made up of potassium cations,

K

+

, and bromide anions,

Br

−

. Essentially, one formula unit of potassium bromide contains a potassium atom and a bromine atom.

Use the periodic table to find the molar masses of these two elements. You will find

For K:

M

M

=

39.0963 g mol

−

1

For Br:

M

M

=

79.904 g mol

−

1

To get the molar mass of one formula unit of potassium bromide, add the molar masses of the two elements

M

M KBr

=

39.0963 g mol

−

1

+

79.904 g mol

−

1

≈

119 g mol

−

So, if one mole of potassium bromide has a mas of

119 g

m it follows that three moles will have a mass of

3

moles KBr

⋅

molar mass of KBr



119 g

1

mole KBr

=

357 g

You should round this off to one sig fig, since that is how many sig figs you have for the number of moles of potassium bromide, but I'll leave it rounded to two sig figs

mass of 3 moles of KBr

=

∣

∣

∣

∣

¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯

a

a

360 g

a

a

∣

∣

−−−−−−−−−

Explanation:

<em>a</em><em>n</em><em>s</em><em>w</em><em>e</em><em>r</em><em>:</em><em> </em><em>3</em><em>6</em><em>0</em><em> </em><em>g</em><em> </em>

6 0
3 years ago
What is one way a pathogen can enter the body?
Ipatiy [6.2K]
I’m pretty sure it’s Nose
8 0
3 years ago
Read 2 more answers
Plants such as _______________ provided much nitrogen to the soil.
Allushta [10]

Answer:

Abiotic

Explanation:

Its because it includes water, sunlight, tempature and soil

6 0
2 years ago
Effect of fossil fuel emission on oceans?
BlackZzzverrR [31]
Fossil fuel emissions can create acid rain, which in turn increases the pH of ocean water, harming the organisms in the ocean.<span />
7 0
3 years ago
A missile is flying at a speed of 125 m/s. If the missile has a mass of 125 kg, what’s its kinetic energy?
LenKa [72]

976,563 is the answer I got to your question

5 0
2 years ago
Read 2 more answers
Other questions:
  • What happens to hydrogen atoms at very high temperatures?​
    8·1 answer
  • In general, non-spontaneous reactions __________.
    14·1 answer
  • If the quantity of reactants used in a chemical reaction increase, then the quantity of the products produced will also be incre
    8·1 answer
  • Calculate the pH for each of the following cases in the titration of 50.0 mL of 0.210 M HClO(aq) with 0.210 M KOH(aq).
    11·2 answers
  • Which pair of elements below have +3 ionic change?<br> A. Al and Ga<br> B. Sc and Y
    5·1 answer
  • *LAST QUESTION , PLEASE HELP* Why does the land around an once active coal mine remain barren? a.) Empty coal mines are flooded
    5·1 answer
  • Calculate the number of molecules in 7 moles of oxygen
    13·1 answer
  • Whats the ansewr giving brainliest
    8·1 answer
  • How do the electron configurations for chlorine explain the steps pls
    14·1 answer
  • What type of chemical reaction does this equation represent?<br><br> Ag2S + KCN --&gt; AgCN + K2S
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!