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rodikova [14]
3 years ago
13

HELPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP

Chemistry
2 answers:
Afina-wow [57]3 years ago
7 0
Maybe you can try to reduce the amount of electricity you use, that should be easy to fill out :)
Effectus [21]3 years ago
5 0
Maybe try separating regular trash and recycling even more and spread the word. You chose to do this because you have seen how bad the oceans are being polluted, and it is hurting our earth and killing many animals. You plan on recycling everyday. Hope this helps!
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The amount of water vapor in a given volume of air is ______________ .The amount of water vapor in the air at any one time depen
Lera25 [3.4K]
1) humidity 2) temperature 3) more 4) high 5) low 6) relative 7) divided 8) cloud 9) dew 10) divided. i think this is correct
3 0
3 years ago
How is aluminum an example of extensive<br> property?
Marrrta [24]

Answer:

If the property depends on the amount of matter present, it is an extensive property. The mass and volume of a substance are examples of extensive properties; for instance, a gallon of milk has a larger mass and volume than a cup of milk.

Explanation:

3 0
3 years ago
Part 1. determine the molar mass of a 0.314-gram sample of gas having a volume of 1.6 l at 287 k and 0.92 atm. show your work.
docker41 [41]

The molar mass of a 0.314-gram sample of gas having a volume of 1.6 l at 287 k and 0.92 atm. is 5.23 gram.

<h3>What is an Ideal Gas ?</h3>

An Ideal Gas is a law for ideal gas which states that the product of Pressure and Volume is equal to the product of the moles of sample, universal gas constant and temperature.

PV = nRT

The given data in the question is

Pressure = 0.92 atm

Volume = 1.6 l

Temperature = 287 K

0.92 * 1.6 = n * 287 * 0.082

n = 0.06 moles

0.06 = 0.314 / molecular weight

molecular weight = 0.314/0.06

Molecular weight = 5.23 gm

Molar mass = 5.23 gm.

The  temperature and pressure conditions at which the gas behaves like an ideal gas is 273 K and 1 atm.

To know more about Ideal Gas

brainly.com/question/8711877

#SPJ1

4 0
2 years ago
Explain the Law of Conservation of Mass in terms of the atoms and bonds in a chemical reaction.
RUDIKE [14]
Atoms are the smallest particles of an element that can take part in a chemical reaction. During any chemical reaction no particles are created or destroyed: the atoms are simply rearranged from the reactants to the products. The products may have different properties to the reactants.
Mass is never lost or gained in chemical reactions. We say that mass is always conserved. In other words, the total mass of products at the end of the reaction is equal to the total mass of the reactants at the beginning.
This fact allows you to work out the mass of one substance in a reaction if the masses of the other substances are known.
7 0
3 years ago
Read 2 more answers
What is the ph of a 2.00 m hno2 solution if ka=5.00 e-6?
zysi [14]

Answer: -

2.5

Explanation: -

Initial [HNO₂] = 2.00 M

ka = 5.00 x 10 ⁻⁶

ICE table for HNO₂ =

[\left[\begin{array}{cccc}concentrations&HNO2&H+&NO2\\Initial&2.00&0&0\\Change&-x&+x&+x\\Equilibrium&2.00-x&x&x\end{array}\right]

Ka = \frac{x2}{2.00-x}

5.00 x 10-6 = \frac{x2}{2.00-x}

x = 0.0032 M

pH = - log [H⁺]

= - log 0.0032

= 2.5

6 0
3 years ago
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