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MArishka [77]
2 years ago
5

Number 2 & 3 please !!<3

Chemistry
1 answer:
Goshia [24]2 years ago
8 0

Answer:just for the ponits

Explanation:ima be a jenna

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¿sabes cual es la concentración de azúcar en un refresco de un litro?​
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110 gramos
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3 years ago
A characteristic of a substance that may be observed or measured without changing the composition of the substance is a(n) ___ p
ivann1987 [24]

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c physical

Explanation:

5 0
3 years ago
How many significant figures does 602.060 have. what is its precision
ryzh [129]

That number has 6 significant numbers. It's precision would be 602.

Hope it helped.  

4 0
3 years ago
How many grams of calcium are required to free 8 grams of hydrogen gas from hydrochloride acid, HCl?
Gala2k [10]

Answer:

The answer to your question is 160 g of Calcium

Explanation:

Data

mass of Calcium = ?

mass of Hydrogen = 8 g

reactant = HCl

Process

1.- Write the balanced chemical reaction

             Ca  + 2HCl   ⇒   CaCl₂  +  H₂

2.- Look for the atomic number of Calcium and hydrogen

Calcium = 40 g

Hydrogen = 1 x 2 = 2 g

3.- Use proportions to calculate the mass of calcium needed.

            40 g of Calcium ---------------- 2 g of hydrogen

               x                      ----------------- 8 g of hydrogen

                         x = (8 x 40) / 2

                         x = 320/2

                         x = 160 g of Calcium

4 0
3 years ago
Explain why tap water conducts an electric current but purified water does not
rewona [7]
Tap water contain mineral molecules while purified water doesn't but that doesn't make it non conductor it is just a weak conductor
7 0
3 years ago
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