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vodomira [7]
3 years ago
14

PLZ I NEED THIS NOW A chemical change can also be called a chemical _________.

Chemistry
2 answers:
Sonbull [250]3 years ago
8 0

Chemical reaction I believe because a change in a chemical is the chemical reacting.

posledela3 years ago
6 0
A chemical change can also be called a chemical reaction
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Why are the molecules of hydrocarbons nonpolar?
laiz [17]
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4 0
3 years ago
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Suppose a system returns to its original overall, internal energy ((∆U) after the following changes. In step 1, 25 J of work is
Brums [2.3K]

Answer:

Heat transfer in step 2 = 47.75 J

Explanation:

Internal energy = heat + work done

U = Q + W

In a cyclic process the total internal energy change of the system = 0.

In the process there are two steps. The total heat exchange in the process is the sum of heat exchanges in the two processes.

We have to find the heat exchange in step 2.

In step 1,

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In step 2, the internal energy change will be negative of that in step 1.

U = 35.75 J

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6 0
3 years ago
Please answer the question
Tom [10]

Answer:

Stamens

Explanation:

7 0
2 years ago
If A and B have the SAME mass. A floats and B sinks. B MUST have a
Alexandra [31]

Answer:

volume

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6 0
3 years ago
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How many grams of sulfur are in 3.54 g of H2S?
ira [324]

Answer:

3.329 g

Explanation:

First you need to determine the molar mass of H2S which is 34.1 g/mol.

With that we know that to find the moles of H2S we just divide the mass of sample with the molar mass.

3.54 g / 34.1 g/mol = 0.103812317  mol of H2S

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The molar mass of sulfur is 32.065 g/mol and to find the mass of sulfur you need to multiply the molar mass with the moles of the compound.  

0.103812317  mol * 32.065 g/mol = 3.329 g of sulfur

Let me know if you get something else or if something is unclear in the comments so that we can figure it out.

5 0
2 years ago
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