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bixtya [17]
3 years ago
5

During the phase change from solid ice to liquid water, which bonds/forces are being weakened?

Chemistry
1 answer:
kvasek [131]3 years ago
5 0
INTERmolecular forces (such as dipoles and London dispersion forces).

The actually compound isn't changing (it's still H2O in solid or liquid form), so INTRAmolecular bonds aren't being affected. It's just the strength of attraction between separate molecules that is weakening.
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A bar of gold is 5.0mm thick, 10.0cm long and 2.0cm wide. It has a mass of exactly 193.0g. What is the desity of gold?
Tanzania [10]
<h3>Answer:</h3>

19.3 g/cm³

<h3>Explanation:</h3>

Density of a substance refers to the mass of the substance per unit volume.

Therefore, Density = Mass ÷ Volume

In this case, we are given;

Mass of the gold bar = 193.0 g

Dimensions of the Gold bar = 5.00 mm by 10.0 cm by 2.0 cm

We are required to get the density of the gold bar

Step 1: Volume of the gold bar

Volume is given by, Length × width × height

Volume =  0.50 cm × 10.0 cm × 2.0 cm

             = 10 cm³

Step 2: Density of the gold bar

Density = Mass ÷ volume

Density of the gold bar = 193.0 g ÷ 10 cm³

                                      = 19.3 g/cm³

Thus, the density of the gold bar is 19.3 g/cm³

3 0
3 years ago
Adding more than one equivalent of HCl to pent-1-yne will lead to which product:______.
Ket [755]

Answer:

c. 2,2-dichloropentane.

Explanation:

Hello there!

In this case, according to the given information, it turns out possible for us to firstly draw the structure of the reactant, pent-1-yne:

CH\equiv C-CH_2-CH_2-CH_2

Now, we infer the halogen is added to the carbon atom with the most carbon atoms next to it, in this case, carbon #2, in order to write the following product:

CH\equiv C-CH_2-CH_2-CH_2+2HCl\rightarrow CH_3- CCl_2-CH_2-CH_2-CH_2

Whose name is 2,2-dichloropentane.

Regards!

8 0
3 years ago
Convert 11 degrees Fahrenheit into degrees Celsius and then into kelvin. Show your work.
olchik [2.2K]

Celsius: -11.7

Kelvin: 261.5

Hope it helps! Please mark Brainliest! :)

7 0
3 years ago
Now let’s return to the question of why everything went off when the light, a heater, and a hair dryer were all running in the b
igomit [66]

Answer:

The power must have gone out for that area.

Explanation:

6 0
3 years ago
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Why do lumps of sodium carbonate react more slowly than powdered sodium carbonate
ollegr [7]

Answer:

In the lab, powdered calcium carbonate reacts much faster with dilute hydrochloric acid than if the same mass was present as lumps of ...

Explanation:

hope it's helpful for u

Mark me as brainlest

3 0
2 years ago
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