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Serjik [45]
3 years ago
10

Is a process that involves the collection of information and ideas supported by evidence.

Chemistry
2 answers:
Iteru [2.4K]3 years ago
8 0

Answer:

SCIENCE is a process that involves the collection of information and ideas supported by evidence because science is the knowledge gained through observations and experiments

Explanation:

i hope this will help you :)

wolverine [178]3 years ago
5 0

Answer:

pseudoscience

Explanation:

srry that this is so late btw, hope this helps...

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Which oh these statements describes a chemical property?
Gelneren [198K]

Iron rusts when exposed to air → chemical property

3 0
3 years ago
​29. A gas has a volume of 1.75 L at -23°C and 150.0 kPa.
arsen [322]

The answer for the following mention bellow.

  • <u><em>Therefore the final temperature of the gas is 260 k</em></u>

Explanation:

Given:

Initial pressure (P_{1}) = 150.0 kPa

Final pressure (P_{2}) = 210.0 kPa

Initial volume (V_{1}) = 1.75 L

Final volume (V_{2}) = 1.30 L

Initial temperature (T_{1}) = -23°C = 250 k

To find:

Final temperature (T_{2})

We know;

According to the ideal gas equation;

P × V = n × R ×T

where;

P represents the pressure of the gas

V represents the volume of the gas

n represents the no of moles of the gas

R represents the universal gas  constant

T represents the temperature of the gas

We know;

\frac{P*V}{T} = constant

\frac{P_{1} }{P_{2} } × \frac{V_{1} }{V_{2} } = \frac{T_{1} }{T_{2} }

Where;

(P_{1}) represents the initial pressure of the gas

(P_{2}) represents the final pressure of the gas

(V_{1}) represents the initial volume of the gas

(V_{2}) represents the final volume of the gas

(T_{1}) represents the initial temperature of the gas

(T_{2}) represents the final temperature of the gas

So;

\frac{150 * 1.75}{210 * 1.30} = \frac{260}{T_{2} }

(T_{2}) =260 k

<u><em>Therefore the final temperature of the gas is 260 k</em></u>

<u><em></em></u>

3 0
2 years ago
Mixtures can be separated by filtration and distillation. Both methods take advantage of ...
bagirrra123 [75]
<span>differences in the physical properties of the mixture's components</span>
5 0
3 years ago
Which phrase describes a compound that consist of two elements
Lunna [17]

Answer:

there are no phrases

Explanation:

7 0
3 years ago
Please help me with this answer correct
oksano4ka [1.4K]

Answer:

hope this helps :)

Explanation:

for the first one, you can look at the periodic table and look at the atomic number and it will show you how many protons there are giving you the answer because protons and electrons are equal in a pure element

a- carbon

b- neon

c- boron

d- oxygen

e- helium

f- hydrogen

g- lithium

h- beryllium

i- nitrogen

1- sulfur

2- S

3- 16

4- 32.066

5- 16

6- 16

7- 16.066

8- draw circles and put 16 dots like on the other page and in the middle put 16 nuetrons and electrons

9- 6 i think

5 0
2 years ago
Read 2 more answers
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