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3 years ago

Can someone help with this please? greatly appreciated!

Chemistry

1 answer:

maw [93]3 years ago

7 0

Answer:

Explanation:

a) When the iron rod is heated, it expands (gets larger). That's the key to this whole procedure. It doesn't expand much -- depending on what temperature the iron rod is heated up to.

When the rod looks like it has expanded as much as it can, the rod is tightened as much as it can be tightened before damage is done. When the rod cools, it contracts (gets smaller). That brings the walls closer together or it stops the walls from bulging.

Very interesting question. I've never seen this. Thanks for asking.

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When does a spring tide take place? At the beginning of spring Only during the spring season Only after spring is over At any ti

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At any time.

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Because it occurs in a full and a new moon.

HOPE THIS HELPS!!

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4 years ago

WILL GIVE BRAINLIEST IF YOU EXPLAIN (this is 7th grade Science / Chemistry btw):

alekssr [168]

Answer:

2 chlorine atoms.

Explanation:

H₂ + Cl₂ → 2HCl

The Law of Conservation of Mass states that matter can neither be created nor destroyed in a chemical reaction.

If 2 molecules of Hydrogen and 2 molecules of Chlorine is present in the reactants, the same no. of atoms should also be present in the product.

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3 years ago

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3 years ago

How many picometers are in 2.0 meters?

Shkiper50 [21]

Answer:

2e+12

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Kinetic Energy – what does it depend on? The_________ an object moves, the_________________it has. The greater the ___________of

OverLord2011 [107]

Answer:

Greater the mass

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Velocity

Greater kinetic energy

Mass and velocity

Explanation:

We know that kinetic energy of object

$K.E=\frac{1}{2}mv^2$

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v=Velocity of object

Kinetic energy is directly proportional to mass and velocity of object.

When mass of object is greater then the object has greater kinetic energy when the mass of object is small then the object has small kinetic energy.

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The greater the mass of an object moves,the greater the kinetic energy it has.

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Kinetic energy depends on both mass and velocity of object.

7 0

3 years ago