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Aneli [31]
3 years ago
13

What is a demonstration of the law of conservation of mass​

Chemistry
1 answer:
IrinaVladis [17]3 years ago
6 0

Answer:

Explanation:

Law of Conservation of Mass: The law that states that matter cannot be created nor destroyed

Ex: Kelly ran across the room and bumped into her brother, pushing him to the floor. The kinetic energy she possessed because of her movement was transferred to her brother, causing him to move.

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A small hole in the wing of a space shuttle requires a 20.7-cm² patch.
cricket20 [7]

The Patch's area of the space shuttle in km² is 2.07 × 10⁻⁹ km²

Given, that a space shuttle requires a 20.7 cm² patch

We have to convert the patch's area from cm² into km².

Unit conversion is a method in which we multiply or divide with a particular numerical factor and then finally round off to the nearest significant digits.

Patch area of the space shuttle is 20.7 cm²

1 cm = 0.00001 km

or, 1 cm² = (0.00001 km)²

or,  1 cm² = 10⁻¹⁰km²

20.7 cm² = 20.7 ×  10⁻¹⁰km²

20.7 cm² = 2.07 × 10⁻⁹ km²

The patch area in square kilometers is 2.07 × 10⁻⁹ km²

To learn more about unit conversion, visit: brainly.com/question/11543684

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8 0
1 year ago
What mass of hydrogen is required to react with 24.7 g of nitrogen?
yaroslaw [1]

Answer:

10.80 g of H2

Explanation:

As per the equation, let us calculate the mole ratio. N2+3H2→2NH3. As per the equation one mole of nitrogen

8 0
3 years ago
Who's model looked similar to a billiard ball?
riadik2000 [5.3K]

Answer:

I need to see a picture

Explanation:

4 0
3 years ago
Read 2 more answers
Compare the number of moles calculated in parts a) 0.03 and b). 0.064. Which of the three possible reactions discussed is consis
Snowcat [4.5K]

Answer:don’t click link ur gonna get ur info taken

Explanation:

6 0
3 years ago
PLEASE HELPPP :[
kkurt [141]

Answer:

C. The fruit and the hamburgers were affected by an increase in heat energy.

Explanation:

One claim Harvey can use to support the examples from his experiment is that the hamburgers and fruits were affected by an increase in the heat energy.

  • This chemical change is one that is solely driven.
  • This action Harvey is carrying out is cooking
  • When meals are cooked, the raw substances undergoes chemical change via the action of heat.
5 0
2 years ago
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