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Maurinko [17]
3 years ago
11

For every action, there is an equal and opposite reaction. true or false

Chemistry
1 answer:
Svetlanka [38]3 years ago
5 0
True because evryone reacts a different way
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to find the mass of 3.2 moles of calcium for carbonate which of the following is used to calculate the amount
natka813 [3]
I believe it to be g/mol of Calcium carbonate
because to finde mass...u must have grams(g) as units....
it is the only one that have g as units 

as for the first answer the avogadros number gives u the number of atoms in  one mole of calcium carbonate....
the second one is based on ... At s.t.p one mole of gas occupies 22.4 dm³⇒to find volume 
6 0
3 years ago
There is 6.4% sales tax on 1,500 television how much tax is owned<br>​
Arturiano [62]

Answer:

What you need to know before I explain is how to add percents onto numbers.  What I'm saying is what and how to do 6.4% x 1500

1. You can't do a percent and number together, that's impossible

What you can do is convert the percent (6.4%) into a decimal

2. 6.4% is equivalent to 6.4/100, which is equivalent to 0.064

3.  Now, you multiply 0.064 x 1500

You will notice, hopefully, that you have a number smaller than 1500, but do not panic, you are on the right track!

4. Using the number you got, add that to 1500, and there's your total!

But, if you want only the tax, keep that small number you started off with!

Explanation:

6 0
3 years ago
Iron is impermeable to air and water true or false
BabaBlast [244]

Answer:

Pure iron is impermeable to air and water, so True.

Explanation:

When corroding, the oxide layer becomes permeable, but water and air cannot pass through pure iron.

I hope this helps! :)

6 0
3 years ago
How many grams of calcium phosphate can be produced when 78.5 grams of calcium hydroxide reacts with excess phosphoric acid?
gogolik [260]
Hello,


You balanced the equation and then you have to set up what is called a psychometric equation for each reactant so that you get the same unit for each in order to compare the two. so for (calcium hydroxide) = 78.5 g ÷ (40.1 + 32 + 2) = 1.0593 mol * Note: I just broke it down in my own science way..u can just get the molar mass of calcium hydroxide which is approx 74 g/mol


Hope this helps
3 0
4 years ago
Read 2 more answers
Help ;-;<br><br> Will give Brainliest and 25 Points
Yuri [45]
I don’t see what you need help with but thanks:)
3 0
3 years ago
Read 2 more answers
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