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Stells [14]
3 years ago
11

2C3H7OH + 9O2 --> 6CO2 + 8H2O

Chemistry
1 answer:
UNO [17]3 years ago
4 0

Answer 12.2g is the answer

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When glass is spun into fine fibers, the trapped air makes a thermal insulator. A. TRUE B. FALSE
Inessa05 [86]

Answer:

TRUE

Explanation:

Glass spun into fine fibers is called fiberglass and is commonly used as an insulator.

6 0
3 years ago
Which of the compounds h2c2o4, ca(oh2, koh, and hi, behave as bases when they are dissolved in water?
Galina-37 [17]
H2C2O4, also written as (COOH)2, is Ethandioic acid, and, as evident by the name, is an acid, and not a base
Ca(OH)2 and KOH, Calcium Hydroxide and Potassium Hydroxide, respectively, are bases when dissolved in water, as they are able to release OH- ions.
Hydrogen Iodide, HI, when dissolved in water, is a strong acid. So, that is also not a base.
6 0
3 years ago
Read 2 more answers
An object with a mass of 4.0 kg has a force of 12.0 newtons applied to it. What is the resultant acceleration of the object?
Zigmanuir [339]

Answer:

3m/s²

Explanation:

Force applied to an object can be calculated thus;

F = ma

Where;

F = force applied (Newtons)

m = mass of substance (kg)

a = acceleration (m/s²)

According to the information provided in this question, F = 12.0 newtons, m = 4.0 kg, a = ?

Derived from F = m.a

We have; a = F/m

a = 12/4

a = 3

The resultant acceleration of the object is 3m/s².

3 0
3 years ago
Which of the following describes wind direction?
iren2701 [21]

Answer:

where the wind is going

Explanation:

direction is where something is going hope it helps

3 0
2 years ago
Read 2 more answers
If a system performs 147 kJ of work while receiving 47 kJ of heat, what is change in its internal energy?
Verdich [7]

Answer:

-100 kJ

Explanation:

We can solve this problem by applying the first law of thermodynamics, which states that:

\Delta U = Q-W

where:

\Delta U is the change in internal energy of a system

Q is the heat absorbed/released by the system (it is positive if absorbed by the system, negative if released by the system)

W is the work done by the system (it is positive if done by the system, negative if done on the system)

For the system in this problem we have:

W = +147 kJ is the work done by the system

Q = +47 kJ is the heat absorbed by the system

So , its change in internal energy is:

\Delta U = +47 - (+147) =-100 kJ

6 0
3 years ago
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