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lisabon 2012 [21]
3 years ago
8

ACTIVIDAD 2:

Chemistry
1 answer:
Firlakuza [10]3 years ago
5 0
I don’t understand your language sorry
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A scientist observes debris added to a landform from a melting glacier. This is evidence for which type of natural process?
VARVARA [1.3K]
I think the answer is A. Physical weathering, because since a debris is added to the landform, it is physically happening.
3 0
4 years ago
How many liters of 0.98 M have solution would react completely with 3.5 moles ca(oh)2
jasenka [17]

The question is typed wrong. Assuming the correct question is

How many liters of 0.98 M H2SO4 solution would react completely with 3.5 moles Ca(OH)2 ?

Answer:-

3.571 litres

Explanation:-

The balanced chemical equation for this reaction is

H2SO4 + Ca(OH)2 = CaSO4 + 2 H2O

From the balanced chemical equation we see that

1 mole of Ca(OH)2 reacts with 1 mol of H2SO4.

∴3.5 moles of Ca(OH)2 reacts with 1 x 3.5 / 1 = 3.5 mol of H2SO4.

Strength of H2SO4 = 0.98 M

Volume of H2SO4 required = Number of moles of H2SO4 / Strength of H2SO4

= 3.5 moles / 0.98 M

= 3.571 litre

8 0
4 years ago
Aliyah marks a line on her driveway with a piece of chalk and another line 50ft away Then she stands with both feet at the line
Mariulka [41]

Answer:

Speed

Explanation:

Aliyah must have been trying to find her speed.

The speed is a measure of how fast an object or a body is and it is calculated by finding the ratio of distance with time. Mathematically,

  speed = \frac{distance}{time} with a unit of m/s.

<em>Hence, with the distance measured on the ground and Aliyah trying to find the time it will take her to cover the distance while running, she must have been trying to find how fast she can run, that is, speed. </em>

3 0
3 years ago
The filament is the main structure, which is made up of the stamen with the anther on top.
pentagon [3]


It correctly describes the male reproductive parts.
Eunice switched the stamen and the anther.
Eunice switched the filament and the stamen.
It correctly describes the female reproductive parts.
6 0
3 years ago
How does a scientist answer a scientific question? A. By observing and measuring B. By asking others for their opinions C. By fi
marin [14]

Answer:

The answer is A

Explanation:

Because . . .

- A is correct because scientist make their statements by using their observations and tools to measure.

- B is incorrect people's opinions are not facts! Plus, opinions can be wrong.

- C is incorrect because that book can be outdated and not every answer is in a book.

- D is absolutely incorrect because guessing a "right" answer can be wrong. For example, if you were a scientist and you guessed a treatment for coronavirus, you will defiantly get fired because you don't have evidence or logic to back up your answer. In addition, if people used ur "treatment" the one you have guessed as the "right" answer, you can put people's lives in danger and they can possibly die. You will defiantly be responsible for it and be put into jail.

3 0
4 years ago
Read 2 more answers
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