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Talja [164]
3 years ago
10

Which scientist would best describe the motion of the earth?

Chemistry
1 answer:
Burka [1]3 years ago
5 0
I think kepler would be the one to best describe the motion of hte earth because he has a space telescope named after him

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At a temperature of 393 K, the pressure of a sample of nitrogen is 1.07 atm. What will the pressure be at a temperature of 478 K
Rainbow [258]

Answer:

1.30atm

Explanation:

P1/T1 = P2/T2

1.07/393 = P2/478

6 0
3 years ago
How to calculate the sum of the ratio of the ions
ANEK [815]
If it is just ratio you must just put the mass number on the either side of the symbol ‘:’ and cancel but the same process is not used to find simplest ratio
6 0
3 years ago
A student is told that both energy and mass must be conserved in every chemical reaction. She measures the mass of Hydrochloric
salantis [7]

Answer:

Explanation:

When we react Hydrochlorid Acid with zinc we have the following reaction:

2HCl(aq) + Zn(s) --> ZnCl2(aq) + H2(g)

The hydrogen gas formed is lost to the environment, so we can affirme that in the start we have the mass for all the H, Cl and Zn atoms in the solution, but after the reaction occurs, we have only the mass for the Cl and Zn atoms.

That's why the mass is less than the original.

The law that the student was told is only applied to closed environments.

6 0
3 years ago
Read 2 more answers
Which process is similar to binary fission?
elixir [45]
Fission is similar to mitosis because they both involve splitting. 

Answer: <span><span>d. mitosis</span></span>
8 0
3 years ago
Rutherford proposed that atoms have positive nuclei. Which statement correctly describes the nucleus of an atom?
DIA [1.3K]
I'm not 100% sure but I'm leaning towards D. :)
8 0
3 years ago
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