ANSWER
there are 20 number of atoms in compound
Explanation:
In a formula unit of Mg(OH)2, there are one magnesium ion and two hydroxide ions; or one magnesium, two oxygen, and two hydrogen atoms.
Answer : The correct option is D.
Explanation :
Balanced chemical equation : It is defined as the mass or component of each atom should be equal on both sides of the equation.
The balanced chemical equation for the reaction of 
and 
is,
So, the correct option is D.
Answer:
Troposphere and Atmosphere In this chapter, students learn that water vapor condenses as it moves higher to where the atmosphere is colder. This idea helps students explain why more rain forms over West Ferris than East Ferris.
Explanation:
The nature of ions formed by different atoms is as follows:
- Metal atoms form positively-charged ions
- Non-metal atoms form negatively-charged ions
<h3>What are ions?</h3>
Ions are substances which are formed when neutral atoms gain or lose electrons.
There are two types of ions based on the charge the ion carries;
- anions - which are negatively-charged
- cations - which are positively-charged
The nature of the ions formed by different atoms depend on whether the atoms are atoms of metals or atoms of non-metals.
Metal atoms form positively-charged ions by the loss of one or more electrons as illustrated below:
where; M is a metal atom, M⁺ is a metal ion, and e⁻ is an electron.
Non-metal atoms form negatively-charged ions by the gain of one or more electrons as illustrated below:
where; N is a non-metal atom, N⁻ is a non-metal ion, and e⁻ is an electron.
In conclusion, the nature of ions formed by atoms depends on the nature of the atom, whether they are metallic or non-metallic atoms.
Learn more about ions at: brainly.com/question/14511468
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Your nervous system is most similar to a cruise ship (option C).
The nervous system is a complex network in the body in charge of:
- Automatic responses and movements.
- Voluntary movements.
- Responses to the world.
This system works due to the action of structures such as:
- The brain.
- The spinal cord.
- The nerves.
Moreover, the nervous system works through the following steps:
- A stimulus is received, for example, you accidentally touch a hot surface.
- This is taken by the nerves to the brain.
- The brain processes the information and sends a response, for example, to move the hand away from the hot surface.
Based on this, the system resembles a cruise ship because signals go from the senses to the brain and then back again similar to a cruise going away and then back to the port.
Learn more about brain in: brainly.com/question/5361122
