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2 years ago

I need to know the measurements of this to the appropriate amount of significant figures

Chemistry

1 answer:

igomit [66]2 years ago

3 0

Answer:

[See Below]

Explanation:

I'd say 44 something. It's probably ml but I can't see what it says on the tube.

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How many neutrons are in a Cs-130 isotope?

den301095 [7]

It has 78 neutrons in a cesium

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2 years ago

Which of the pollowing is

34kurt

Answer:

At transform plate boundaries, two plates move in opposite direction. Transform faults are the site of massive earthquakes. The San Andreas Fault is the boundary between the Pacific and North American plates.

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2 years ago

Write the net ionic equation for ammonium carbonate and lead(II) nitrate are combined. (Use the solubility rules provided in the

sashaice [31]

Answer: The net ionic equation is written below.

Explanation:

Net ionic equation of any reaction does not include any spectator ions.

Spectator ions are defined as the ions which does not get involved in a chemical equation. They are found on both the sides of the chemical reaction when it is present in ionic form.

The chemical equation for the reaction of ammonium carbonate and lead (II) nitrate is given as:

$(NH_4)_2CO_3(aq.)+Pb(NO_3)_2(aq.)\rightarrow 2NH_4NO_3(aq.)+PbCO_3(s)$

Ionic form of the above equation follows:

$2NH_4^{+}(aq.)+CO_3^{2-}(aq.)+Pb^{2+}(aq.)+2NO_3^{-}(aq.)\rightarrow PbCO_3(s)+2NH_4^+(aq.)+2NO_3^-(aq.)$

As, ammonium and nitrate ions are present on both the sides of the reaction. Thus, it will not be present in the net ionic equation and are spectator ions.

The net ionic equation for the above reaction follows:

$Pb^{2+}(aq.)+CO_3^{2-}(aq.)\rightarrow PbCO_3(s)$

Hence, the net ionic equation is written above.

8 0

2 years ago

All organic molecules have what element in common?

Sloan [31]

ALL organic molecules have carbon.
Hope this helps :)

7 0

2 years ago

Read 2 more answers

The reliability or reproducibility of a measurement is its ...

Inessa [10]

Answer:

The two most important aspects of precision are reliability and validity. Reliability refers to the reproducibility of a measurement. You quantify reliability simply by taking several measurements on the same subjects!

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2 years ago