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3 years ago

If you help me, I will mark you as most Brilliance. I will also give you 5 Stars... ! .

Chemistry

1 answer:

pashok25 [27]3 years ago

6 0

Answer:

It is c

Explanation:

This is due, for example, to the fact that when the Earth is closer to the Sun in its elliptical orbit it orbits faster, while when it is further away it orbits slower, averaging to a value equivalent to that of a circular orbit.
Earth has seasons because our planet's axis of rotation is tilted at an angle of 23.5 degrees relative to our orbital plane – the plane of Earth's orbit around the sun.
While the Earth spins through space it stays almost up right on its axis, although as it spins through space it gives us seasons. One hemisphere, when faced directly to the sun has Summer, meanwhile the other the has Winter. Later on the hemispheres have Autumn and Spring.

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As the elements in a group 1 of the periodic table are considered from top to the bottom each successive element has a

kap26 [50]

<h2>Answer:</h2>

<u>Decreasing Ionization energy</u>

<h2>Explanation:</h2>

As elements of Group 1 of the Periodic Table are considered in order from top to bottom, the ionization energy of each successive element decreases. This decrease is due to increasing radius and increasing shielding effect. In other words when we move to the right of a period, the number of electrons increases and the strength of shielding increases. As a result, it is easier for valence shell electrons to ionize, and thus the ionization energy decreases down a group.

7 0

4 years ago

Is soda an acid or a base

Aneli [31]

Answer:

It's an Acid

Explanation:

cuz of the Co2 and it's naturally acidic nature

4 0

3 years ago

What material makes up ash and pumice?

slamgirl [31]

Pumice rocks are formed due to the air that is trapped in between the rocks, a body of magma spurting out with dissolved gas under pressure. As the magma cracks through the Earth’s surface, the sudden pressure drop causes the gas to come out of the solution. The flash of gas form the vent slices the magma and blows it out as a molten lather. The lather hastily solidifies as it flies into the air and falls back to Earth as pieces of pumice.

7 0

3 years ago

A catalyst can increase the rate of a reaction ________. Select one: a. by increasing the overall activation energy (Ea) of the

makvit [3.9K]

Answer:

by providing an alternative pathway with a lower activation energy

Explanation:

Cataysts are the substances that neither consumed nor produced during a chemical reaction, but increase the rate of the reaction.

So, catalysts remain chemically unchnaged after the completion of the reaction.

For a reaction to occur, reactants molecule must collide and successful collisions lead to product formation.

A certain minimum amount of energy is required for successful collision. This minimum amounr of energy is called activation energy.

One way to increase speed of reaction is to provide energy to the reactants and other way to increase speed is to provide alternate pathway with lower activation energy.

Catalyst increases a rate of reaction by providing an alternate pathway with lower activation energy.

Therefore, the correct option is option b 'by providing an alternative pathway with a lower activation energy'

5 0

4 years ago

Which of the following is a true statement about bacteria, based on what Tim and Moby explained??

allsm [11]

I believe it’s D

There is good and bad bacteria that can be both harmful and good for humans

5 0

3 years ago

Read 2 more answers