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madam [21]
3 years ago
10

Can someone help me ASAP THIS IS IS A IMPORTANT GRADE

Chemistry
2 answers:
liubo4ka [24]3 years ago
7 0

Answer:

A

Explanation:

There are three kinds of blood vessels: arteries, veins, and capillaries.

vaieri [72.5K]3 years ago
5 0
ITS AAAAAAAAAAAAAAAAA
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Your experiment requires 150 mL of 7.7 M NaOH. How many grams of NaOH will you need?
Elodia [21]
You have molarity and you have volume. Use the formula :
Molarity(M)= Moles(N)/Liter(L)            to get the solution. 
150 ml= .150 L
7.7 = N/.150
N=.1.155 moles of NaOH.
 And since you know the moles, use the molar mass to figure out the grams.
<span> (40g/mol NaOH) x (1.155mol) =  
46.2 g of NaOH.</span>
7 0
3 years ago
What is a cation and where can you find it on the periodic table?
Maslowich

Answer:

A cation is an ion with fewer electrons than protons. Therefore, it has a positive charge. The electric charge on a proton is equal in amount to the charge on an electron. Anions are atoms or radicals (groups of atoms), that have gained electrons. Since they now have more electrons than protons, anions have a negative charge. Halogens always form anions, alkali metals and alkaline earth metals always form cations. Most other metals form cations (e.g. iron, silver, nickel), whilst most other nonmetals typically form anions (e.g. oxygen, carbon, sulfur).

Explanation:

An anion and cation cannot be specifically found on the periodic table.    

4 0
3 years ago
Why are rocks not alive
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but tbh I have no idea lol!

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B. is the correct answer of your question
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What is a neutron and what charge does it have
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It’s a polyatomic and it has a negative charge. It’s located in the nucleus of the atom, along with the protons.
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