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Chemistry

1 answer:

iogann1982 [59]4 years ago

5 0

Answer:

i cant see it or i would

Explanation:

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When adding the measurements 42.1014 g + 190.5 g, the answer has ___ significant figures.

andrezito [222]

Answer: The answer has 7 significant figures

Explanation:

The addition of 190.5 and 42.1014 will give 232.6014. Counting the digits will give 7 significant figures.

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4 years ago

How many moles of solute particles are present in 1 ml of aqueous 0.020 m (nh4)2co3?

Dima020 [189]

Vs = 1.0 mL = 0.001 L
c((NH4)2CO3) = 0.02 M
n((NH4)2CO3) = ?

For the purpose, here we will use the next equation:

c=n/V ⇒ n=cxV

n((NH4)2CO3) = 0.02M x 0.001L

n((NH4)2CO3) = 2x10⁻⁵ mole of (NH4)2CO3 is presented in the solution

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3 years ago

How can you convert diamond into graphite ?

Setler79 [48]

Answer:

➢There are different ways to trigger the conversion of diamond to graphite, for instance by simply heating the diamond under exclusion of oxygen or even with an aimed mechanical stroke.

Explanation:

hope it will help you have a great day bye and Mark brainlist if the answer is correct

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#carry on learning

4 0

3 years ago

Read 2 more answers

The volume of a gas is increased from 0.5 L to 4.0 L while the temperature is held constant. The pressure of the gas will go fro

AVprozaik [17]

From Boyle's law the volume of a fixed mass of a gas is inversely proportional to the pressure at a constant absolute temperature. Thus; K = PV Hence; P1V1 =P2V2 0.5 × 24 = 4× P2 P2 = 12/4 = 3 atm Therefore; the pressure will go from 24 atm to 3 atm

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3 years ago

Pls help i need help asap

Trava [24]

Answer:

I think magnesium hydroxide.

Explanation:

7 0

3 years ago

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Can someone help me