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
Feliz [49]
2 years ago
5

Write the symbol for every chemical element that has atomic number greater than 3 and atomic mass less than 15.4 u.

Chemistry
1 answer:
mixas84 [53]2 years ago
8 0

Answer:

N, B, Be, C

Explanation:

N (Nitrogen) has 14.0067 B (Boron) has 10.81 Be (Beryllium) has 9 and C (Carbon) has 12

You might be interested in
2503(g) → 2502(g) O2(g)
Verizon [17]

Answer:

7.146

Explanation:

use the equilibrium equation

6 0
3 years ago
What is weight? you earn 12 points if you answer
timama [110]

Answer:

the weight of an object is the force acting on the object due to gravity. Some standard textbooks define weight as a vector quantity, the gravitational force acting on the object. Others define weight as a scalar quantity, the magnitude of the gravitational force.

Explanation:

5 0
3 years ago
Iron+calcium oxide=?
Alex17521 [72]

Answer:

Calcium iron oxide (CaFe2O4)

PubChem CID 6336546

Molecular Formula CaFe2H8O4

Synonyms Calcium iron oxide (CaFe2O4) 12013-33-1 Calcium ferrite EINECS 234-584-5

Molecular Weight 223.83 g/mol

Component Compounds CID 23925 (Fe) CID 5460341 (Calcium) CID 962 (Water)

5 0
3 years ago
Please I need help with everything ​
Sergeeva-Olga [200]

Answer:

See below!

Explanation:

An acid (A) will have acid in the name.  It will also have a hydrogen bonded to an electronegative compound.  A molecular compound (M) will have nonmetals and/or hydrogen.  An ionic compound (I) will have nonmetals and first and second column metals.  It could also include charged compounds.  A transition metal (TM) will have a transition metal in the compound.

The formulas for TM and I are made by balancing the charges of the atoms to equal zero.  The formulas for M can be found from the name itself.  The formulas for A have to be memorized.

TM  ==>  copper (II) oxide  ==>  CuO

A  ==>  hydrosulfuric acid  ==>  H₂S

TM  ==>  iron (III) fluoride  ==>  FeF₃

TM  ==>  lead (II) chlorate  ==>  PbCl₂

A  ==>  hydrochloric acid  ==> HCl

M  ==> dihydrogen monoxide  ==>  H₂O

A  ==>  sulfurous acid  ==>  H₂SO₃

I  ==>  potassium oxide  ==>  KO

I ==>  ammonium hydroxide  ==>  NH₄OH

M  ==> nitrogen trioxide  ==>  NO₃

I  ==>  aluminum phosphate  ==>  AlPO₄

To name ionic (I) compounds, simply put the name of the metal with the nonmetal.  But, for the nonmetal change, the ending to "-ide".  To name acids (A), say hydro- with the atom/compound it is attached to and end with acid.

I  ==>  MgSO₄  ==>  magnesium sulfate

I  ==>  HgS  ==>  mercury sulfide

I  ==>  Na₂S  ==>  sodium sulfide

A  ==>  HF  ==>  hydrofluoric acid

I  ==>  KCN  ==>  potassium cyanide

7 0
3 years ago
Consider the fructose-1,6-bisphosphatase reaction. Calculate the free energy change if the ratio of the concentrations of the pr
Natali [406]

<u>Answer:</u> The Gibbs free energy of the reaction is -8.82 kJ/mol

<u>Explanation:</u>

The equation used to Gibbs free energy of the reaction follows:

\Delta G=\Delta G^o+RT\ln K_{eq}

where,

\Delta G = free energy of the reaction

\Delta G^o = standard Gibbs free energy = -16.7 kJ/mol = -16700 J/mol  (Conversion factor: 1kJ = 1000J)

R = Gas constant = 8.314J/K mol

T = Temperature = 37^oC=[273+37]K=310K

K_{eq} = Ratio of concentration of products and reactants = 21.3

Putting values in above equation, we get:

\Delta G=-16700J/mol+(8.314J/K.mol\times 310K\times \ln (21.3))\\\\\Delta G=-8816.7J/mol=-8.82kJ/mol

Hence, the Gibbs free energy of the reaction is -8.82 kJ/mol

7 0
3 years ago
Other questions:
  • A submicroscopic particle suspended in a solution has a volume 1.3um^3. What is this volume in liters?
    14·2 answers
  • In k4[fe(cn)6], how many 3d electrons does the iron atom have?
    7·1 answer
  • What is the final acetate ion concentration when 69. g Ba(C2H3O2)2 is dissolved in enough water to make 970. mL of solution? The
    5·1 answer
  • An iron nail rusts when exposed to oxygen. According to the following reaction, how many grams of iron(III) oxide will be formed
    8·1 answer
  • A dialysis unit requires 70000 mL of distilled water. How many gallons of water are needed? (1 gal = 4 qt)
    12·2 answers
  • What is the definition of the fugacity coefficient for a pure component, and its condition at the ideal gas state?
    15·1 answer
  • Dr. von Waldner conducts research on depression. His hypothesis is that depression results from maladaptive thought patterns. Fr
    8·1 answer
  • HN3+CuCO3-H2O+CO2+CU(NO3)2 balance equation​
    6·1 answer
  • Helllpppp I will give you branliest!!! In which cell organelle is DNA found?
    11·2 answers
  • How many low tides happen at a given coast in any 24-hour period?<br> Answer here
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!