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siniylev [52]
3 years ago
13

Why is climate change important

Chemistry
1 answer:
olga_2 [115]3 years ago
4 0
Global warming and climate change can cause habitats to no longer suit animals needs and not all animals can easily adapt. Climate change can kill if severe enough
You might be interested in
The table below lists the properties of a metallic element.
Misha Larkins [42]

Answer:

Group 12

Explanation:

3 0
3 years ago
Read 2 more answers
Science help this is my last question
astraxan [27]

Answer:

P waves travel faster than other waves

Explanation:

P waves travel fastest and are the first to arrive from the earthquake. In S or shear waves, rock oscillates perpendicular to the direction of wave propagation. In rock, S waves generally travel about 60% the speed of P waves, and the S wave always arrives after the P wave.

3 0
2 years ago
For any microscope, the size of the smallest observable object is one-half the wavelength of the radiation used. For example, th
vlabodo [156]

The smallest observable object for an electron microscope is 6.6nm.

<h3>Calculation of smallest observable object for an electron microscope :</h3>

Given,

Speed of electron (u) = 5.5 x 10⁴ m/s

De Broglie's formula,

wavelength, λ =h/mu

where,  

h = Planck's constant = 6.626 x 10^{-34} Js

m = mass of electron, 9.11 x 10^{-31} kg

λ =h/mu

= 6.626 x 10^{-34} Js /9.11 x 10^{-31} kg x 5.5 x 10⁴ m/s

= 0.132 x 10^{-7} m

= 13.2 x 10^{-9} m

It is well known that the smallest thing that can be observed under any microscope is identical to the radiation's wavelength for the smallest object that can be seen under an electron microscope.

Therefore, 13.2 x 10^{-9} m/2

= 6.6 x 10^{-9} m

= 6.6 nm

Hence, the smallest observable object for an electron microscope is 6.6nm.

Learn more about electron microscope here:

brainly.com/question/13884997

#SPJ4

8 0
1 year ago
A 7.50-g sample of iron is heated in oxygen to form an iron oxide. if 10.71 g of the oxide is formed, what is its empirical form
Zielflug [23.3K]
Answer is: empirical formula is Fe₂O₃.
m(Fe) = 7,50 g.
m(iron oxide) = 10,71 g.
n(Fe) = m(Fe) ÷ M(Fe).
n(Fe) = 7,50 g ÷ 55,85 g/mol = 0,134 mol.
m(O) = m(iron oxide) - m(Fe).
m(O) = 10,71 g - 7,50 g = 3,21 g.
n(O) = 3,21 g ÷ 16 g/mol = 0,20 mol.
n(Fe) : n(O) = 0,134 mol : 0,2 mol = 2 : 3.
3 0
3 years ago
Which elements are most metallic? Li, Be, B, C
charle [14.2K]
Firstly, carbon isn't a metal.

Boron is a metalloid.

Beryllium is the least metallic alkaline earth metal, and lithium is the least metallic alkaline metal.

Both are metallic, and have metallic appearances and conduct electricity, but beryllium is more brittle than lithium.

So, I'd say Li and Be are equal.
4 0
3 years ago
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