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
Lostsunrise [7]
2 years ago
7

Help can someone do this for me

Chemistry
2 answers:
Pie2 years ago
7 0

Answer:

Magnesium Mg 12  12

Phosphorous P 15  15

Fluorine F 9  9

Iron Fe 26  26

Calcium Ca 20  20

Fluorine F  9 9

denis23 [38]2 years ago
4 0

Answer:

Magnesium Mg 12  12

Phosphorous P 15  15

Flourine F 9  9

Iron Fe 26  26

Calcium Ca 20  20

Flourine F  9 9

Explanation:

You might be interested in
The density of NO2 in a 4.50 L tank at 760.0 torr and 25.0 °C is ________ g/l.
Sonbull [250]

The answer is c-1.68

4 0
3 years ago
What is the relative rate of diffusion of hydrogen and nitrogen ​
vredina [299]

Answer:

2.645

Explanation:

Rate of diffusion formula:

Sqrt(mass2/mass1)

>>sqrt(14/2)

(Note:Hydrogen must exist in dwiatomic, [H2])

3 0
2 years ago
A mineral consisted of 29.4% calcium, 23.5% sulfur and 47.1% oxygen. What is the empirical formula?
inessss [21]
Step  one  calculate  the  moles  of  each  element
that  is  moles= %  composition/molar  mass
molar  mass  of    Ca  =  40g/mol,     S=  32  g/mol ,   O=  16 g/mol

moles  of      Ca = 29.4 /40g/mol=0.735 moles,      S= 23.5/32  =0.734 moles,  O= 47.1/16= 2.94   moles

calculate  the mole  ratio  by  dividing   each  mole with  smallest  mole   that   is  0.734
Ca=  0.735/0.734= 1,      S=  0.734/0.734 =1,   O  = 2.94/  0.734= 4
therefore  the  emipical  formula  =  CaSO4
5 0
3 years ago
Plants exchange carbon dioxide, water, and oxygen with their surrounding environment through openings in their ________ called _
lana [24]
C. Leaves and Stomata
7 0
3 years ago
Read 2 more answers
How do i solve these chemistry problems
Ivahew [28]

What you have to do is balance the chemical equations to make sure everything is even on both sides. If you want me to help you answer the questions comment back

8 0
3 years ago
Other questions:
  • The normal boiling point of acetic acid is 118.1°C. If a sample of the acetic acid is at 125.2°C, predict the signs of ΔH, ΔS, a
    12·1 answer
  • Is celery organic chemically? If so, what is it (carbohydrate, protein, etc)?
    10·1 answer
  • Which substance is a gas at room temperature and atmospheric pressure?
    14·1 answer
  • Which metal is most likely to be formed easily into
    15·2 answers
  • When 1.04g of cyclopropane was burnt in excess oxygen in a bomb calorimeter, the temperature rose by 3.69K. The total heat capac
    13·1 answer
  • Find the co valance of c in C2S2 ​
    8·1 answer
  • Of all chlorine atoms, 75.771% are chlorine-35. Chlorine-35 atoms have
    13·2 answers
  • Which best explains why a scientist would share these details in a conference?
    5·1 answer
  • .
    7·1 answer
  • What is (3.11*10^-5)-(4.21*10^-2)
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!