2 years ago

The basic principle of energy is:

Chemistry

1 answer:

nevsk [136]2 years ago

8 0

Answer:

3) Neither created nor destroyed. Only converted.

Explanation:

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Solve for V2 when P1 = 1.0 atm V1 = 22.4 L and P2 = 4.0 atm <br> This is a Boyle’s law gas problem

morpeh [17]

P1/V1=P2/V2
1/22.4=4/x
X=4 multiple by 22.4
V2=89.6L

3 0

3 years ago

When dissolved in water, a neutral molecule of calcium chloride dissociates into three ions - one calcium ion and two chloride i

Mashcka [7]

Explanation:

Calcium chloride is an ionic compound as it is formed by transfer of an electron to each chlorine atom.

So, being an ionic compound calcium chloride is able to dissociate completely into water.

Hence, the dissociation reaction will be as follows.

$CaCl_{2}(s) \rightarrow Ca^{2+}(aq) + 2Cl^{-}(aq)$

Since, two electrons has been lost by single calcium atom. Therefore, calcium atom will have a charge of +2.

Thus, we can conclude that the charge on the calcium ion, in elementary units is +2.

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3 years ago

Why don't solids change shape?

navik [9.2K]

Solids are compounds whose atomic bonds are rigid, which doesn't let the atoms move around freely

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3 years ago

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Today, nuclear power plants rely on fission. While fusion reactions have been used in nuclear bombs, many scientists and enginee

Zigmanuir [339]

Explanation:

nuclear fusion yields more energy than nuclear fission and the products of the reaction are not radioactive

5 0

3 years ago

A van moves with a constant speed

Kitty [74]

Answer:

1.5 hours or 90 minutes

Explanation:

Velocity = d/t

V = 64 mi / hour or 96 mi / 9 min OR 16 mi / 15 min

D = 96 miles

Velocity * Time = Distance

Time = Distance / Velocity

T = 96 mi / 64 mi / hour

96 / 64 = 1.5 mi per hour

T = 1.5 hours or 90 minutes

4 0

3 years ago