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TiliK225 [7]
3 years ago
15

How strongly gravity pulls on an objects mass is the object

Chemistry
1 answer:
Lemur [1.5K]3 years ago
5 0
Yes ...................................
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Which statement best describes how atoms combine to form sodium chloride (NaCl)?
Murljashka [212]

The answer is D. A positively charged sodium Ion and a negatively charged chlorine ion form an ionic bond.

5 0
3 years ago
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An iron bar at 200c is placed in thermal contact with an identical iron bar at 120c in an isolated system
Step2247 [10]

Conduction: In the conduction, the heat is transferred from the hotter body to the colder body until the temperature on both bodies are equal.

In thermal equilibrium, there is no heat transfer as the heat is transferred till the temperature on the bodies are not same.

In the given problem, an iron bar at 200°C is placed in thermal contact with an identical iron bar at 120°C in an isolated system. After 30 minutes, the thermal equilibrium is attained. Then, the temperature on both iron bars are equal.Both iron bars are at 160°C in an isolated system.

But in an open system, the temperatures of the iron bars after 30 minutes would be less than 160°C. There will be heat lost to the surrounding. The room temperature is 25°C. There will be exchange of the heat occur between the iron bars and the surrounding. But It would take more than 30 minutes for both iron bars to reach 160°C because heat would be transferred less efficiently.

7 0
3 years ago
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A manufacturing plan has been found guilty of polluting the nearby river. this is pollution
solniwko [45]
Yes it is polluting the river with everything the manufaturing plant gives off such as the chemicals released in the air
6 0
3 years ago
Energy in a chemical reaction can be identified as which of the following?
daser333 [38]
I believe it’s A..but I’m not quite sure.
6 0
2 years ago
If you start with 0.020 g of Mg, how many moles of H2 will you make if the reaction is complete?
irina [24]

If one starts with 0.020 g of Mg, 0.0008 moles of H2 would be made if the reaction is complete.

Going by the balanced equation of reaction in the image, 1 mole of Mg will produce 1 mole of H2 in a complete reaction.

If 0.020 g of Mg is started with:

mole of Mg = mass/molar mass

                        = 0.020/24.3

                            = 0.0008 moles

Since the mole of Mg to H2 is 1:1, thus, 0.0008 moles of H2 will also be made from the reaction.

More on stoichiometry can be found here: brainly.com/question/9743981

6 0
2 years ago
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