2 years ago

2

2 answers:

7 0

Answer:

Organs are the body's recognizable structures for example, the heart, lungs, liver, eyes, and stomach that perform specific functions. An organ is made of several types of tissue and therefore several types of cells.

Explanation:

stiks02 [169]2 years ago

6 0

Answer:

An organ is a part of the body that carries out its main function. Most organs are made out of tissues.

Explanation:

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The diagram shows a balloon that was rubbed with a piece of cloth what is the change

Ede4ka [16]

Answer: the electric charge

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3 years ago

Label the following ph paper color as either strong / weak acid, strong/weak base, or neutral

Vladimir [108]

1. neutral

2.strong base

3.weak acid

4.strong acid

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2 years ago

If equal volumes of 0.1 M HCl and 0.2 M TRIS (base form) are mixed together. The pKa of TRIS is 8.30. Which of the following sta

blondinia [14]

Answer:

option D is correct

D. This solution is a good buffer.

Explanation:

TRIS (HOCH $_{2}$ ) $_{3}$ CNH $_{2}$

if TRIS is react with HCL it will form salt

(HOCH $_{2}$ ) $_{3}$ CNH $_{2}$ + HCL ⇆ (HOCH $_{2}$ ) $_{3}$ NH $_{3}$ CL

Let the reference volume is 100

Mole of TRIS is = 100 × 0.2 = 20

Mole of HCL is = 100 × 0.1 = 10

In the reaction all of the HCL will Consumed,10 moles of the salt will form

and 10 mole of TRIS will left

hence , Final product will be salt +TRIS(9 base)

H = Pk $_{a}$ + log (base/ acid)

8.3 + log(10/10)

8.3

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3 years ago

A mbxture of iron and sulfur can be separated by attracting the Iron particles with a magnet. If the iron and sulfur mixture is

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Answer:

C. homogeneous mixture

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3 years ago

What does the atomic mass of an element on the periodic table represent?

Lynna [10]

The atomic mass on the periodic table represents the sum of number of protons and number of neutrons.

Atomic mass = Number of protons + number of neutrons

Hope this helps!

3 0

2 years ago