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atroni [7]
4 years ago
7

Can someone help me ​

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.

4 0
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) = <span>0.02 M
n(</span>(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


6 0
3 years ago
How can you convert diamond into graphite ?​
Setler79 [48]

Answer:

<em>➢</em><em>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.</em>

Explanation:

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4 0
3 years ago
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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
6 0
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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