2 years ago

A 3.81-gram sample of NaHCO3 was completely decomposed in an experiment.

1 answer:

8 0

Explanation:

In this experiment, carbon dioxide and water vapors combine to form H2CO3. After decomposition, the Na2CO3 had a mass of 2.86 grams. Determine ...

You might be interested in

Consider an ideal gas enclosed in a 1.00 L container at an internal pressure of 18.0 atm. Calculate the work, w , if the gas exp

Dominik [7]

Answer:

-32821.2 J (negative sign implies that work is done by the system)

Explanation:

The expression for the calculation of work done is shown below as:

$w=-P\times \Delta V$

Where, P is the pressure

$\Delta V$ is the change in volume

From the question,

$\Delta V$ = 18.0 - 1.00 L = 18.0 L

P = 18.0 atm

$w=-18.0\times18.0\ atmL$

Also, 1 atmL = 101.3 J

So,

$w=-18.0\times 18.0\times 101.3\ J=-32821.2\ J$ (negative sign implies that work is done by the system)

6 0

2 years ago

_____ sedimentary rocks are made of once-living things or their pieces. A. Organic B. Inorganic C. Chemical D. Fragmental

kramer

I believe the answer is A. Hope this helps.

8 0

2 years ago

Read 2 more answers

Draw n-ethyl-3-methylpentanamide. draw your structural formula with all necessary hydrogen atoms.

Elena-2011 [213]

Structure of <span>N-ethyl-3-methylpentanamide is shown below,</span>

3 0

3 years ago

How long will it take for a 40.0 gram sample of I-131 (half-life = 8.040 days) to decay to 1/100 its original mass? ( PLEASE WIT

masya89 [10]

Idk how long will it

4 0

3 years ago

Help me please for brainliest and 10 points.

Stella [2.4K]

Answer:

The red arrow from igneous to sedimentary rock

Explanation:

When rocks are weathered and eroded, they become sediment. This sediment is later compacted and cemented to form sedimentary rock. Therefore, the red arrow going from igneous rock to sedimentary rock represents weathering and erosion.

7 0

3 years ago