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Evgen [1.6K]
3 years ago
7

Which of the following statements contains supporting evidence for the Big Bang Theory?

Chemistry
1 answer:
m_a_m_a [10]3 years ago
5 0
Without the statements, I can't specifically answer your question. But, I can present the largest piece of evidence we have for the Big Bang Theory.

Over the course of <em>many many </em>years, we have noticed something. Everything is expanding outwards. 

We can observe this, and realise that since things are expanding outwards, or, away from something, everything once came from a fixed point. 

Life and the universe started from one point, and every single thing in our cosmos is still expanding away from it. =)
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The ship that will transport the terranauts to the core is built of what material?A. Cobalt B. Diamond C. Kryptonite D. Unobtain
Veseljchak [2.6K]

Answer:

Explanation:

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4 0
3 years ago
Adding a neutron to an atom changes what property of the atom?
GrogVix [38]
C, The atomic mass. This could also cause certain elements (i.e. Uranium, Plutonium) to radioactively decay in process called nuclear fission.
3 0
3 years ago
Read 2 more answers
We can consider a chemical to be safe if:
slamgirl [31]
We can consider a chemical to be safe if it does not contain any harmful substances such as nitrogen, harmful acids, or even excessive heat. Other chemicals such as the chemicals used in food products like, for example, citric acid, is not so harmful.
Hope this helps! :D
Any questions? Just let me know! I'd be happy to help any way possible.
8 0
3 years ago
Calculate the vapor pressure of water at T=90°C
LenKa [72]

The equilibrium vapour pressure is typically the pressure exerted by a liquid .... it is A FUNCTION of temperature...

Explanation:

By way of example, chemists and physicists habitually use

P

saturated vapour pressure

...where

P

SVP

is the vapour pressure exerted by liquid water. At

100

∘

C

,

P

SVP

=

1

⋅

a

t

m

. Why?

Well, because this is the normal boiling point of water: i.e. the conditions of pressure (i.e. here

1

⋅

a

t

m

) and temperature, here

100

∘

C

, at which the VAPOUR PRESSURE of the liquid is ONE ATMOSPHERE...and bubbles of vapour form directly in the liquid. As an undergraduate you should commit this definition, or your text definition, to memory...

At lower temperatures, water exerts a much lower vapour pressure...but these should often be used in calculations...especially when a gas is collected by water displacement. Tables of

saturated vapour pressure

are available.

4 0
3 years ago
The following characteristics describe which type of mixture, homogeneous or heterogeneous? The substance is mixed uniformly thr
alexira [117]
The correct answer to this question is letter "A. homogeneous mixture." The following characteristics describe the type of mixture, which is a homogeneous mixture. The substance is mixed uniformly throughout and each part of <span>the substance contains the same ratio of materials with the same properties</span>
3 0
3 years ago
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