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Alla [95]
2 years ago
10

2

Chemistry
2 answers:
lord [1]2 years ago
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:

You might be interested in
How many images will be formed when two plane mirrors are inclined at an angle of 45 degree​
insens350 [35]

Answer:

7 Images

Explanation:

n = 360 / a - 1 =  360 / 45 - 1 = 8-1= 7

(Based on multiple reflections)

I hope im right!!

6 0
2 years ago
what the greatest agent of change?water/wind/ice how does this agent continue to weathering lake annette
cluponka [151]

Answer:

Explanation:

water/wind/ice how does this agent continue to weathering lake annette

erosion

The process known as weathering breaks up rocks so that they can be carried away by the process known as erosion. Water, wind, ice, and waves are the agents of erosion that wear away at the surface of the Earth

5 0
2 years ago
The cylinder of aluminum in class was approximately 13mm in circumference and 42mm in length. What would be it's approximate mas
Roman55 [17]

Answer:

Mass, m = 1.51 grams

Explanation:

It is given that,

The circumference of Aluminium cylinder, C = 13 mm = 1.3 cm

Length of the cylinder, h = 4.2 cm

We know that the density of the Aluminium is 2.7 g/cm³

Circumference, C = 2πr

r=\dfrac{C}{2\pi}\\\\r=\dfrac{1.3}{2\pi}\\\\r=0.206\ cm

Density is equal to mass per unit volume.

d=\dfrac{m}{V}

m is mass of the cylinder

V is the volume of the cylinder

V=\pi r^2h\\\\V=\dfrac{22}{7}\times0.206^2\times 4.2\\\\V=0.5601\ cm^3

So,

m=d\times V\\\\m=2.7\times 0.5601\\\\m=1.51\ g

So, the mass of the cylinder is 1.51 grams.

5 0
3 years ago
7.6 The diagrams show the atoms in four different substances. Each circle represents an atom.
Illusion [34]

Answer:

A and C represent elements while B and D represent Compounds

Explanation:

chemical elements cannot be broken down into simpler substances by any chemical reaction. While A chemical compound is a chemical substance composed of many identical molecules composed of atoms from more than one element held together by chemical bonds

8 0
1 year ago
83ef0c8
kumpel [21]

Answer:

0.17325 moles per liter per second

Explanation:

For a first order reaction;

in[A] = in[A]o - kt

Where;

[A]= concentration at time t

[A]o = initial concentration

k= rate constant

t= time taken

ln0.5 =ln1 - 2k

2k = ln1 - ln0.5

k= ln1 - ln0.5/2

k= 0 -(0.693)/2

k= 0.693/2

k= 0.3465 s-1

Rate of reaction = k[A]

Rate = 0.3465 s-1 × 0.50 mol/L

Rate = 0.17325 moles per liter per second

5 0
2 years ago
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