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kykrilka [37]
3 years ago
8

What are eggshells made of?

Chemistry
1 answer:
My name is Ann [436]3 years ago
7 0

Answer:

Eggshell is made almost entirely of calcium carbonate

Explanation:

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C po

Explanation:

baka po pero pwd din ang B pero ok ang C

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How did Ernest Rutherford's experiment relate to J.J. Thomson's work?
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D

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What kind of rocks might you expect to find on the Moon? Why do you think that?​
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Lab Report
Diano4ka-milaya [45]

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The purpose of the experiment is to see how water of different temperature and salinity affect the density.

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3 0
2 years ago
An object that has a height of 0.4 meter is placed at a distance of 0.7 meter from a concave spherical mirror. An image is forme
julia-pushkina [17]

Answer: B. 0.6125 m

For spherical concave mirror:

Height of the object, h_o=0.4\hspace{1mm}m

Height of the image, h_i=0.35\hspace{1mm}m

Object distance, u=-0.7 m

we need to find the distance of the image, v.

These are related by the following formula:

\frac{h_i}{h_o}=-\frac{v}{u}\\ \Rightarrow v=u\times\frac{h_i}{h_o}

Insert the values:

v=-(-0.7\times\frac{0.35}{0.4})=0.6125\hspace{1mm}m

Hence, option B is the correct.


8 0
2 years ago
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