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Lana71 [14]
3 years ago
11

Which instrument would be used to measure the volume of a small jar of juice?

Chemistry
1 answer:
Sergio039 [100]3 years ago
3 0

Answer:

Graduated cylinder

Explanation:

No explanation.

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One way to increase the rate of a reaction occurring in solution is to stir the solution. How does this increase the rate of the
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<span>A. It increases the number of collisions between molecules.

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What number do you get when you multiply 6 and 7 together?
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You get 42 when you multiply 6 & 7.

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1. Choose one of the compounds from the table and explain how you know the numbers of atoms in your formula. 2. Is it possible f
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7 0
2 years ago
The mass of a solid substance is 21.1164 g. If the volume of
GuDViN [60]

Answer:

The density of the  substance is 1.0611 \frac{g}{cm^{3} }

Explanation:

The density of a substance is a characteristic property that matter, whether solids, liquids or gases, has to be compressed in a given space, that is, it allows us to measure the amount of mass in a certain volume of a substance.

Density is expressed as follows:

density=\frac{mass}{volume}

In this case:

  • density: ?
  • mass: 21.1164 grams
  • volume: 19.9 cm³

Replacing:

density=\frac{21.1164 grams}{19.9 cm^{3} }

density= 1.0611 \frac{g}{cm^{3} }

<u><em>The density of the  substance is 1.0611 </em></u>\frac{g}{cm^{3} }<u><em></em></u>

4 0
4 years ago
The element lead (pb) consists of four naturally occurring isotopes with atomic masses 203.97302,205.97444,206.97587, n 207.9766
Marina CMI [18]

The method of determining the most common isotope of lead is by determining the average atomic mass. The formula for determining the average atomic mass is:

average atomic mass = \Sigma {percent abundance}\times {atomic mass}

Substituting the values in the formula:

average atomic mass = \frac{{203.97302}\times {1.4}+{205.9744}\times {24.1}+{206.97587}\times {22.1}+{207.97663}\times {52.4}}{100}

average atomic mass = \frac{285.562228+4963.984004+4574.166727+10897.975412}{100}

average atomic mass = \frac{20721.688371}{100} = 207.22 amu

The most common isotope of lead is:

Lead - 207.22 amu

The atomic symbol of lead is Pb. The atomic number of Pb is 82.

So, the the most common isotope of lead can be written as:

_{207.22}^{82}Pb and Lead - 207.22 amu.

3 0
3 years ago
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