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
velikii [3]
2 years ago
7

Name the compounds represented by the

Chemistry
1 answer:
katen-ka-za [31]2 years ago
7 0

Answer:

Canxi nito dioxit; Sắt oxit vàng; Amoni dicromat;đồng axitaxetic

Explanation:

You might be interested in
Characteristics of a substance that can be measured or observed by changing the identity of the material is a
algol [13]
C cause ur changing the identity of the material
4 0
2 years ago
Calcule la molaridad de una solución acuosa de ácido sulfúrico (H₂SO₄) que se preparó al mezclar, en un recipiente aforado, 4 mo
oee [108]

Considerando la definición de molaridad, la molaridad de una solución acuosa de ácido sulfúrico (H₂SO₄) es 0.5 \frac{moles}{litro}.

La molaridad es una medida de la concentración de un soluto en una disolución que se define como el número de moles de soluto que están disueltos en un determinado volumen.

La molaridad de una solución se calcula dividiendo los moles del soluto por el volumen de la solución:

Molaridad=\frac{numero de moles de soluto}{volumen}

La Molaridad se expresa en las unidades \frac{moles}{litro}.

En este caso, sabes que una solución acuosa se preparó al mezclar 4 moles del ácido con suficiente agua hasta completar 8 litros de solución. Entonces, sabes que:

  • número de moles de soluto= 4 moles
  • volumen= 8 litros

Reemplazando en la definición de molaridad:

Molaridad=\frac{4 moles}{8 litros}

Resolviendo:

Molaridad= 0.5 \frac{moles}{litro}

Finalmente, la molaridad de una solución acuosa de ácido sulfúrico (H₂SO₄) es 0.5 \frac{moles}{litro}.

<em>Aprende más</em>:

  • brainly.com/question/17647411?referrer=searchResults
  • brainly.com/question/21276846?referrer=searchResults

8 0
2 years ago
What is the percent composition HCN?
kupik [55]

Answer:

see calculations in explanation

Explanation:

percent = part/total x 100%

part = ∑ atomic mass of element

  • hydrogen = 1.008 amu (atomic mass units)
  • carbon = 12.011 amu
  • nitrogen = 14.007 amu

total = ∑ molecular mass of compound

       = H amu  +  C amu +  Namu

       = 1.008 amu + 12.011 amu + 14.007 amu

       = 27.026 amu

%H = (1.008amu/27.026amu)100% = 3.730%

%C = (12.011amu/27.026amu)100% = 44.442%

%N = (14.007amu/27.026amu)100% = 51.827%

Check results ∑%values = 100%

3.730% + 44.442% + 51.827% = 99.999% ≅ 100%

7 0
3 years ago
9. Which indicator would show a pH change from 6 to 7?
expeople1 [14]

Answer:

hi

Explanation:

because

6 0
3 years ago
Name the compound formed when a copper cation has a 2+ charge combined with a bromine anion that has a 1- charge.
Rashid [163]

Answer: The compound is called copper (II) bromide or cupric bromide

Explanation:

7 0
2 years ago
Other questions:
  • Classify each of the following substances:
    5·1 answer
  • Which colorless and odorless gas, produced by radioactive decay of uranium-238, is considered to be a form of pollution?
    13·1 answer
  • What kind of melocule is water?A:nonpolarB:ionicC:polarD:charged
    14·1 answer
  • How many times more hydroxide ions are there in a solution with a ph of 9 than in a solution with a ph of 3?
    15·1 answer
  • How could you determine which household substances are acids, bases, or neutral substances?​
    11·1 answer
  • You are asked to prepare a solution that is 2% by weight ethanol in water. Note that the molecular weight of ethanol is 46.07 g/
    13·1 answer
  • 16. What mass of sulfur has to burn to produce 4.5L SO2 at 300°C and 101 kPa in the following reaction? A. 41.0 g S B. 3.07 g S
    14·1 answer
  • Given the following equation: 2 KCIO, +2 KCl + 30, how many grams of O, can be produced by letting 5.90 moles of KCIO, react ?
    13·1 answer
  • What element in the second period has the largest atomic radius?
    6·1 answer
  • How will the temperature of the water be affected by the dissolving of the lithium oxide?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!