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
dangina [55]
3 years ago
15

Balance these chem problems

Chemistry
1 answer:
nikklg [1K]3 years ago
4 0
These are hard sorry
You might be interested in
¿Cuál es la molaridad de 275 ml de solución, que se preparó disolviendo 42 g de hidroxido de sodio NaOH en agua?
Dovator [93]
CEYSDINO IS A FILE SPAMMER SHE OR HE USES DIS FILE TO GET YOUR INFORMATION...

8 0
3 years ago
What feature of a chemical equation is used to balance the equation and make sure it obeys the law of conservation of mass?
taurus [48]

Answer:

b) coefficient

Explanation:

Refer to this example:

CH4  +2  O2  →  CO2+  2  H2O

2 is used as a coefficient in this chemical equation.

5 0
3 years ago
Read 2 more answers
Draw the structure of 4-methyl-5-oxohexanal.
aniked [119]

Answer:

Explanation:

The structural formula provides more information which is often used to represent a particular organic substance. A structural formula indicates how the atoms are arranged within the molecule of a substance. From the information, the structure of  4-methyl-5-oxohexanal is represented by using a stick formula where the methyl group falls into position 4 and oxygen group falls into position 5 on the hexanal compound.

The structure is provided in the image attached below for better understanding.

4 0
3 years ago
A 32.8 g iron rod, initially at 22.4 C, is submerged into an unknown mass of water at 63.1 C, in an insulated container. The fin
laila [671]

Answer:

mass water = 32.4 g

Explanation:

specific heat iron = 0.450 J/g°C

specific heat water = 4.18 J/g°C

32.8 x 0.450 ( 59.1 - 22.4) + mass water x 4.18 ( 59.1- 63.1)=0

541.7 - mass water x 16.7 = 0

mass water = 32.4 g

3 0
3 years ago
Chlorine can be prepared in the laboratory by the reaction of manganese dioxide with hydrochloric acid, HCl (aq), as described b
Anestetic [448]

Answer:

0.433 gram

Explanation:

6 0
3 years ago
Other questions:
  • In the covalent compound C. He the Greek prefix used to represent the cation<br><br> is
    9·1 answer
  • What is the concentration of a solution?​
    7·1 answer
  • What characterizes a homogeneous mixture?
    11·1 answer
  • The process by which ice widens and deepends cracks in rock is called
    14·1 answer
  • The exact value for the density of aluminum is 2.699 g.cm^3. Working in the science lab at school, Joseph finds the density of a
    6·1 answer
  • An atom of which element has the greatest attraction for the electrons in a bond with a hydrogen atom?
    13·1 answer
  • An ion from a given element has 38 protons and 36 electrons what is the charge
    8·1 answer
  • Help please I’ll give you brainless
    7·1 answer
  • Consider the chemical equation. 2NBr3 + 3NaOH Right arrow. N2 + 3NaBr + 3HOBr If there are 40 mol of NBr3 and 48 mol of NaOH, wh
    6·1 answer
  • You have been asked to organize the following aqueous solutions: HCl, NaOH, H2SO4,Ca(OH)2, LiOH, and HCIO3.How would you group t
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!