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svetoff [14.1K]
3 years ago
14

Consider the balanced equation below.

Chemistry
2 answers:
Nitella [24]3 years ago
4 0

Answer:

I don't know what you think you can use

11111nata11111 [884]3 years ago
4 0

Answer:

b...4:2

Explanation:

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Which of the following is a chemical change? Explain your reasoning: (a) boiling canned soup; (b) toasting a slice of bread; (c)
schepotkina [342]

Answer:

(d) burning a log.

(b) toasting a slice of bread;

Explanation:

Chemical change -

A chemical change refers to , the change in which a new compound is formed .

From the question ,

  • boiling canned soup ,

Its is not a chemical process , since no new compound is formed , these is only change in state as the liquid is turning to gaseous sate .

  • Chopping a log ,

It is not a chemical process , as no new substance is formed .

  • toasting a slice of bread

It is a chemical change , in which bread surface is deposited by a brown coat via the process of heating , even this process is a irreversible in nature .

  • burning of log ,

It is a chemical change , as with the help of heating , the wood is turning to ashes .

6 0
3 years ago
A balloon starts out with a volume of 1.3 l at 115.3 kpa. if the temperature is held constant, what would the new volume be if t
Anna35 [415]

The new volume be if the pressure inside the balloon was reduced to 58kpa is 2.58 L.

<h3>What is ideal gas equation?</h3>

Ideal gas equation PV=nRT gives idea about the behavior of gases at different conditions and for this question the equation becomes:

P₁V₁ = P₂V₂, where

P₁ = initial pressure = 115.3 kpa

V₁ = initial volume = 1.3 L

P₂ = final pressure = 58 kpa

V₂ = final volume = ?

On putting all these values in the above equation, we get

V₂ = (115.3)(1.3) / (58) = 2.58 L

Hence resultant volume of gas is 2.58 L.

To know more about ideal gas equation, visit the below link:

brainly.com/question/18909295

#SPJ1

8 0
2 years ago
Which statement best describes the main benefit to organisms that reproduce sexually?
8090 [49]

Answer:

B. They will conserve energy during reproduction

Explanation:

5 0
2 years ago
Read 2 more answers
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olchik [2.2K]

Answer:

3. NaNO3

Explanation:

Below the line on TABLE G in the reference tables at 40C

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Geologic evidence shows that Earth's tectonic plates can move thousands of kilometers across the Earth's surface. These movement
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The answer is B.
occur gradually over millions of years.
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