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2 years ago

. 2. Bacteria are prokaryotes. What does this mean?

1 answer:

5 0

Bacteria are classified as prokaryotes, along with another group of single-celled organisms, the archaea.
Prokaryotes are organisms whose cells lack a nucleus and other organelles. Prokaryotes are divided into two distinct groups: the bacteria and the archaea, which scientists believe have unique evolutionary lineages. Most prokaryotes are small, single-celled organisms that have a relatively simple structure. no

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A particular uranium alloy has a density of 18.75 g/cm3.

soldi70 [24.7K]

I DONT KNOW THE ANSWER OF NO.B

SO SORRY FOR THAT!!!

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3 years ago

What is true about solubility

LekaFEV [45]

Explanation:

Solubility is defined as a property of solutes by virtue of which they get dissolved in a favorable solvent. The solute can only be dissolved in any suitable solvent up to a limit at a given temperature. This is a characteristic of the the solute-solvent pairing.

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3 years ago

Read 2 more answers

How many moles are in 2.98x10^23 particles?

Novosadov [1.4K]

Answer:

$\boxed {\boxed {\sf 0.495 \ mol}}$

Explanation:

We are given a number of particles and asked to convert to moles.

<h3>1. Convert Particles to Moles </h3>

1 mole of any substance contains the same number of particles (atoms, molecules, formula units) : 6.022 *10²³ or Avogadro's Number. For this question, the particles are not specified.

So, we know that 1 mole of this substance contains 6.022 *10²³ particles. Let's set up a ratio.

$\frac { 1 \ mol }{6.022*10^{23 } \ particles}}$

We are converting 2.98*10²³ particles to moles, so we multiply the ratio by that value.

$2.98*10^{23} \ particles *\frac { 1 \ mol }{6.022*10^{23 } \ particles}}$

The units of particles cancel.

$2.98*10^{23} *\frac { 1 \ mol }{6.022*10^{23 } }}$

$\frac { 2.98*10^{23}}{6.022*10^{23 } }} \ mol$

$0.4948522086 \ mol$

<h3>2. Round</h3>

The original measurement of particles (2.98*10²³) has 3 significant figures, so our answer must have the same.

For the number we found, 3 sig figs is the thousandth place.

The 8 in the ten-thousandth place (0.4948522086) tells us to round the 4 up to a 5 in the thousandth place.

$0.495 \ mol$

2.98*10²³ particles are equal to approximately 0.495 moles.

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3 years ago

A dogfish shark contains 24 chromosomes in each of its muscle cells. How many chromosomes are normally found in each of its game

Marina CMI [18]

Well in each gamete there are 23 chromosomes

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4 years ago

Select the correct answer. What is heat of vaporization? A. It is the heat required to change a substance’s temperature by 1°C.

Luba_88 [7]

D. It is the heat required to change a gram of substance from a liquid to a gas.

Explanation:

The heat of vaporization is the heat required to change a gram of substance from a liquid to a gas.

It is also known as the enthalpy of vaporization.
The heat of vaporization is the quantity of heat needed to change one gram of a substance from liquid to gas.
This heat of vaporization is dependent on the pressure conditions the process is taking place.
Different liquids have their heat of vaporization.

learn more:

Heat of vaporization brainly.com/question/9529654

#learnwithBrainly

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3 years ago