PLZZZ HELP BRAINILEST (science)

Chemistry

1 answer:

Mars2501 [29]2 years ago

7 0

Answer:

i cannot see the question due to the flash you used

Explanation:

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What percent of AgNO3 is silver?

Inga [223]

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63.499%

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Explain the sources (SO2 & NOx)

lawyer [7]

Answer:

Explanation:

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The mass of an erlenmeyer flask is 85.135 g. after 10.00 ml of water is added to the flask, the mass of the flask and the water

BARSIC [14]

Subtracting the mass of (flask+water) from the empty flask gives:
95.023 g - 85.135 g = 9.888 grams of water
Dividing this by the given volume of 10.00 mL water gives:
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3 years ago

A burning splint will burn more vigorously in pure oxygen than in air because ________. a burning splint will burn more vigorous

GrogVix [38]

A burning splint will burn more vigorously in pure oxygen than in air because <span>oxygen is a reactant in combustion and concentration of oxygen is higher in pure oxygen than is in air.
Oxygen concentration in air is approximately 20%, the rest of are nitrogen, carbon dioxide and other gases. Oxygen is oxidazing reactant, that means oxygen give electrons in chemical reactions.
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2 years ago

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Will Mark brainliest fro correct answer!!!!<br><br> Please answer in the picture chemistry

tiny-mole [99]

Answer:

look at the graph

Explanation:

We know that as temperature increases, solubility increases.So, when there is a rise in temperature, as more solute become dissolved, the saturation point will be lifted and more amount of solute will be needed to reach saturation.

Here, when the temperature was 20oC, 38 g of salt was needed for saturation. As the temperature is increased by 15oC, at 35oC more amount of salt was needed to reach saturation(45g). So a 15oC rise in temperature caused a 7 g rise in the amount of salt needed for saturation. So, if temperature is increased additionally through 10oC, an approximate 4.5 g of salt will be needed more to reach the saturation. That is at 45oC, the amount of salt at saturation will be approximately 49.5 g.

So, the temperature and solubility as well as temperature and amount of salt at saturation are linearly related(directly proportional)

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2 years ago