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4 years ago

Can anyone answer the riddle of the day; Is water wet?

Chemistry

2 answers:

Afina-wow [57]4 years ago

3 0

No, if something is wet then it has water on it that can be removed, you cannot take water off of itself.

PIT_PIT [208]4 years ago

3 0

Yes, water is wet. Everybody always tells me its not, but it is. The molecules are not wet themselves. That fact has caused everybody to think the wrong answer; water is not wet. Well now I am gonna prove its actually wet. But first I want you to think this through- What do molecules do? The answer is they move around. So when the molecules in water mix they become wet. Imagine this- You pour a glass of water into another glass of water and those molecules mix. When the water that was just poured into the cup reached the other cup it was mixed in and caused the water to become wet. But it was really wet the entire time. So therefore water is wet. boo-yah.

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Hypothesis and Data Collection Part A The image shows three different liquids: water, water with salt, and vinegar. The pH of ea

Norma-Jean [14]

Answer:

The water would be neutral, (usually 7). The salt water would be the same (7) and the vinegar would be very acidic. (probably 2).

Explanation:

7 0

2 years ago

A sample of helium gas in a balloon is compressed from 4.0 L to 3.2 L at a constant temperature. If the pressure of the gas in t

vampirchik [111]

Answer:

286 kPa

Explanation:

Boyles law states that volume of gas is inversely proportional to pressure o gas for a fixed amount of gas at constant temperature

P1V1 = P2V2

where P1 is pressure and V1 is volume at first instance

P2 is pressure and V2 is volume at the second instance

substituting the values in the equation

229 kPa x 4.0 L = P2 x 3.2 L

P2 = 286.25 kPa

the new pressure is 286 kPa

4 0

3 years ago

The half life of a certain radioactive element is 800 years. How old is an object if only 12.5% of radioactive atoms in it remai

Levart [38]

Given, half life of a certain radioactive element = 800 years.

Amount of substance remaining at time t = 12.5%

Lets consider the initial amount of the radioactive substance = 100%

Using the half life equation:

A = A₀(1/2)^t/t₁/₂

where A₀ is the amount of radioactive substance at time zero and A is the amount of radioactive substance at time t, and t₁/₂ is the half-life of the radioactive substance.

Plugging the given data into the half life equation we have,

12.5 = 100 . (1/2)^t/800

12.5/100 = (1/2)^t/800

0.125 = (0.5)^t/800

(0.5)^3 = (0.5)^t/800

3 = t/800

t = 2400 years

Thus the object is 2400 years old.

6 0

4 years ago

Term that means to break down

astraxan [27]

Answer:

decompose

Explanation:

3 0

4 years ago

6. A piece of solid gold was heated from 274K to 314K. 35.73 of energy was needed to raise the temperature.

ivanzaharov [21]

From Q = mcΔT, we can rearrange the equation to solve for mass, m = Q/cΔT. The specific heat capacity, c, of solid gold is 0.129 J/g °C. I'm assuming that the energy is given in joules, as it's not specified in the question as written.

m = Q/cΔT = (35.73 J)/(0.129 J/g °C)(40.85 °C - 0.85°C)

m = 6.92 g of gold was present

5 0

3 years ago