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Whitepunk [10]
2 years ago
7

Give the correct order of apparatus (Crucible, Filter funnel, Test tube, Dropper, Spatula) to show the correct arrangement that

can be used to prepare and investigate the nature of pH of a sample of onion solution.
Chemistry
2 answers:
anastassius [24]2 years ago
8 0

Answer:

1 Crucible

2 test tube

3 Dropper

4 filter

5 funnel

6 Spatula

Oxana [17]2 years ago
6 0

Answer:

Is it Crucible,Test tube,Dropper,Filter funnel, Spatula

Explanation:

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Which formula represents lead(II) hydroxide?
frez [133]
Pb(OH)2


This is the formula
5 0
3 years ago
2. What is the proper coefficient for balancing oxygen in the complete combustion of
Sveta_85 [38]

Answer:

A

Explanation:

8×2 + 10×1 = 26

so to balance it:

26÷2=13

6 0
3 years ago
it is defined as looking for information by asking various questions about the thing you are curious about?
tino4ka555 [31]

Answer:

Inquiry.

Explanation:

Inquiry can be defined as the process (act) of looking for information by asking various questions about the thing you are curious about.

Simply stated, an inquiry is an act that typically involves seeking information by asking questions with respect to the thing you have curiosity for or the thing you wish to know more about.

This ultimately implies that, an inquiry deals with the urge to find information, seek for the truth or knowledge, examine principles and facts about the thing you are curious about.

3 0
3 years ago
Carbon-14 has a half-life of 5,730 years. If scientists discover a mummified Cro-Magnon specimen, they will first want to determ
ryzh [129]

Answer:

the specimen has 11460 years old

Explanation:

if the live sample has as initial amount of Yo C14, the dead sample will have 0.25Yo of C14.

the rate of decay of radiactive matter over time is

  • Y(t) = Yo * e (( - t * Ln2 ) / T)

∴ Y(t) = 0.25Yo;  T = 5730

⇒ 0.25Yo = Yo * e (( - t * Ln2 ) / 5730 )

⇒ 0.25 = e (( - t * Ln2 ) / 5730 )

⇒ Ln(0.25) = ( -  t * Ln2 ) / 5730

⇒ - 7943.466 = - t * Ln2

⇒ 7943.466 / Ln2 = t

⇒ t = 11460 year

4 0
3 years ago
The Earth and the spaceship both have mass. The astronaut is attracted to Earth by gravity, but he is not attracted to the space
Shkiper50 [21]
The spaceship does not have any gravitational pull. A spaceship can not produce its own gravity like Earth does.
8 0
3 years ago
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