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
olga55 [171]
2 years ago
8

Help!!!!!!.... please I need this fone

Chemistry
1 answer:
IrinaK [193]2 years ago
7 0

Answer:Textbook are produced to meet the needs of educators, usually at educational institutions. Schoolbooks are textbooks and other books used in schools. Today, many textbooks are published in both print format and digital formats.

Explanation:

You might be interested in
What is an internal cost of driving a domestic car?
Nataly_w [17]

Answer:

The correct option is: Cost of materials used in manufacture

Explanation:

There are two types of costs of an object: the internal costs and the external costs.

The internal cost of an object is the direct monetized cost. It refers to the cost involved in the <u>production or manufacturing of a given objec</u>t. Example: labor, <u>material required</u>, equipment, energy, and overhead expenses.

3 0
2 years ago
Which of the following is equivalent to 2100 gram
BabaBlast [244]

10 decigrams are equivalent to 1 gram, so 2,100 grams are equivalent to 2100 x 10. This makes 21,000.

3 0
3 years ago
Please help me I will give you the brain thing and extra points. 2
oee [108]
I think it’s A but, don’t come at me if I’m wrong. Btw I read over it multiple times so this isn’t a random guess. Good luck tell me if you got it right
7 0
2 years ago
Read 2 more answers
Which of the following is a divergent boundary
Sphinxa [80]
I think it's D. Rift Valley
4 0
2 years ago
Read 2 more answers
Consider the dissolution of ammonium nitrate. 1.25 g of amminum nitrate is dissolved in enough water to make 25.0 mL of solution
Mrac [35]

Answer:

\Delta H=-0.02\ kJ

Explanation:

The expression for the calculation of the enthalpy change of a process is shown below as:-

\Delta H=m\times C\times \Delta T

Where,

\Delta H  is the enthalpy change

m is the mass

C is the specific heat capacity

\Delta T  is the temperature change

Thus, given that:-

Mass of ammonium nitrate = 1.25 g

Specific heat = 4.18 J/g°C

\Delta T=21.9-25.8\ ^0C=-3.9\ ^0C

So,

\Delta H=-1.25\times 4.18\times 3.9\ J=-20.3775\ J

Negative sign signifies loss of heat.

Also, 1 J = 0.001 kJ

So,

\Delta H=-0.02\ kJ

5 0
3 years ago
Other questions:
  • slader Consider the following reactions: A. uranium-238 emits an alpha particle; B. plutonium-239 emits an alpha parti- cle; C.
    7·1 answer
  • How I can answer this plz
    13·2 answers
  • What's the molar mass of CoCl
    14·1 answer
  • The diagram is a model of one way that materials move into a cell.
    7·2 answers
  • Equation balancing
    10·1 answer
  • B) Sodium + Oxygen Sodium Oxide + Type of Reaction :
    7·1 answer
  • Copper sulfate, when it is dissolved in water, has a blue color. When steel wool is mixed with a copper sulfate solution, the st
    12·1 answer
  • The water cycle is the __________________ by which water __________________ through the ____________________ and atmosphere.
    5·1 answer
  • Commercial products commonly report concentration in terms of "percentage." Using this
    14·1 answer
  • I need the answers to this and to see if what I put is right so far
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!