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Charra [1.4K]
3 years ago
7

__________ is the attractive pull between any two objects.

Chemistry
2 answers:
Free_Kalibri [48]3 years ago
7 0
Gravity is the force that pulls two objects together
VikaD [51]3 years ago
4 0

Answer: Option (c) is the correct answer.

Explanation:

Gravity is defined as the attractive pull or force of attraction between the objects and the Earth.

For example, an apple falling from a tree to the ground represents that force of gravity has pulled the apple towards the ground.

Thus we can conclude that out of the given options, gravity is the attractive pull between any two objects.

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What stacks membranes that packages chemicals
Montano1993 [528]

Answer: Golgi apparatus

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3 years ago
A sample of nitrogen gas is collected over water at a temperature of 23.0 C. What is the pressure of the nitrogen gas if atmosph
Whitepunk [10]
We first consider the gases that will be present in that sample.
First, there will be nitrogen, as stated. Second, there will also be water in the form of water vapor. For this, we need the vapor pressure of water at 23.0 °C, which is about 21.0 mmHg. Now, the sum of the vapor pressures of the gases will be equivalent to the total pressure. So the pressure of nitrogen gas is:
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4 0
2 years ago
In the dilution process of a solution, the moles of ___________ does not change.
nevsk [136]
Moles of solute does not change.
8 0
3 years ago
1. NaOH mass of a solution of 200g in which its percentage is 25%. What mass of sulfuric acid solution is needed to completely n
Ede4ka [16]

Answer:

m_{H2SO4 = 61.25 g

m_{Na2SO4} = 88.75 g

Explanation:

m_{NaOH} = \frac{200 . 25 }{100} = 50 g

⇒ n_{NaOH} = \frac{50}{40} = 1.25 (moles)

2NaOH + H2SO4 ⇒ Na2SO4 + 2H2O

   2        :     1           :      1         :    2

 1.25                                                       (moles)

⇒  n_{H2SO4} = 1.25 × 1 ÷ 2 = 0.625 (moles) ⇒ m_{H2SO4} = 0.625 × 98 = 61.25 g

    n_{Na2SO4} = 1.25 × 1 ÷ 2 = 0.625 (moles) ⇒m_{Na2SO4} = 0.625 × 142 = 88.75 g

4 0
3 years ago
LOTS OF POINTS PLZ HELP!!!!!<br><br><br> ...I got the first two for ya...
vaieri [72.5K]
I believe this is it

7 0
3 years ago
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