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Vlada [557]
2 years ago
12

How do you find the number of protons in an atom?

Chemistry
2 answers:
stira [4]2 years ago
8 0
You find the number of protons in an atom by looking at the periodic table.
1) Find your element.
2) Locate The atomic number of your element
3) The Atomic Number is also the number of protons.
Usually, the atomic number is on the on the top of the atomic symbol.

* Please Give Me A THANKS by pressing the Thanks (button)!!! :) :D 
storchak [24]2 years ago
4 0
You can find the number of protons in an atom by looking at its atomic number, as the atomic number indicates the number of protons (and electrons) in an atom.
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When substances react chemically to create a new substance, will that new substance have the same physical and chemical properti
skad [1K]

Answer:

No it will not have the same chemical properties as the initial substance.

Explanation:

In a chemical change, the atoms in the reactants rearrange themselves and bond together differently to form one or more new products with different characteristics than the reactants

4 0
3 years ago
You are balancing an ionic compound. Let's call it: AB.
rewona [7]

Answer:- A_3B_2

Explanations:- It is given that the charge for A is +2 and the charge for B is -3. The over all compound is neutral means the over all charge is zero. For making the over all charge zero, we need 3 positive ions and 2 negative ions. This makes a +6 charge for A and -6 charge for B and the over all charge is zero.

Also, if we think about the criss cross then charge of A becomes the subscript of B and the charge of B becomes the subscript of A.

So, the formula of the ionic compound is A_3B_2 . In this compound the ratio of A to B is 3:2.

The balanced equation could be shown as:

3A+2B\rightarrow A_3B_2



8 0
2 years ago
A particle has 5 protons, 6 neutrons, and 5 electrons. What is its net charge.
Trava [24]
It would have a zero charge because it is a neutral atom. The number of electrons which is a negative charge is equal to the number of protons which is positive, they will cancel each other out hence meaning it will become neutral
4 0
3 years ago
The base unit of a measured liquid called volume is?
Dafna1 [17]
The answer you need is Volume.
8 0
3 years ago
Calculate the mass of CaCl2•2H2O required to make 100.0 mL of a 0.100 M solution. Each of the calculations below will take you t
Zolol [24]

Answer:

The mass is 1.4701 grams and the moles is 0.01.

Explanation:

Based on the given question, the volume of the solution is 100 ml or 0.1 L and the molarity of the solution is 0.100 M. The moles of the solute (in the given case calcium chloride dihydride (CaCl2. H2O) can be determined by using the formula,  

Molarity = moles of solute/volume of solution in liters

Now putting the values we get,  

0.100 = moles of solute/0.1000

Moles of solute = 0.100 * 0.1000

= 0.01 moles

The mass of CaCl2.2H2O can be determined by using the formula,  

Moles = mass/molar mass

The molar mass of CaCl2.2H2O is 147.01 gram per mole. Now putting the values we get,  

0.01 = mass / 147.01

Mass = 147.01 * 0.01

= 1.4701 grams.  

4 0
2 years ago
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