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Sav [38]
3 years ago
15

Who was the first scientist to measure speed as distance over time?

Chemistry
1 answer:
777dan777 [17]3 years ago
8 0

Galileo was the first scientist to measure speed as distance over time.

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Draw one representation that shows the intermolecular interactions between NH_3 and water and another that shows the intermolecu
Lera25 [3.4K]

Answer:

NH3 has greater water solubility due to intermoleculate interactions

Explanation:

Hi:

If we represent the structures of NH3 and SbH3 we can see that they are similar to the naked eye, this is because N and Sb belong to the same group of the periodic table (group 15).

However, the electronegativity of N is greater than that of Sb. The NH3 molecule is polar and can form an intermolecular interaction called hydrogen bridge with water.

Sb is less electronegative than N. The SBH3 molecule forms an intermolecular interaction with water called dipole-induced dipole.

The zone with positive charge density of the water molecule (hydrogens) is oriented towards the zone with positive charge density of SBH3 (the pair of electrons not shared)

Stronger intermolecular junctions allow greater solubility of NH3 molecules.

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5 0
3 years ago
Which type of substance have a definite shape and fixed volume?
IRINA_888 [86]
The answer is A. Solids only
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However, the plates allow the earth to cool when they move because they cause heat loss.If the plates were to stop moving the earth would have to loose heat another way and since we cant tell how this would happen, it could be very dangerous. 
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3 years ago
Locate on the periodic table each group of ions with the same charge. What relationship exists between ions of the same charge a
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The periodic table is a tabular display of the chemical elements organized on the basis of their atomic numbers, electron configurations, and chemical properties. ... Elements with the same number of valence electrons are kept together in groups, such as the halogens and the noble gases.

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1.Which is the lowest level of organization for the system in a human
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brain cell

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hope this helps :)

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