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Reptile [31]
3 years ago
8

The law of conversation of mass states that the mass of the reactant is ___ the mass of products

Chemistry
1 answer:
Fittoniya [83]3 years ago
3 0

Answer: equal to

Explanation:

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For which process would the pictured cell be used?
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Answer:

Coating a material with metal

(SInce the glasses will be coated with gold.)

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1 year ago
What is the total volume occupied by 132 g of CO2 at STP
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the temperature of a sample of water increases from 20celsius to 46.6celsius as it absorbs 5650 J of heat. what is the mass of t
Levart [38]

Answer:

m = 50.74 kg

Explanation:

We have,

Initial temperature of water is 20 degrees Celsius

Final temperature of water is 46.6 degrees Celsius

Heat absorbed is 5650 J

It is required to find the mass of the sample. The heat absorbed is given by the formula ad follows :

Q=mc\Delta T

c is specific heat of water, c = 4.186 J/g°C

So,

m=\dfrac{Q}{c\Delta T}\\\\m=\dfrac{5650}{4.186\times (46.6-20)}\\\\m=50.74\ kg

So, the mass of the sample is 50.74 kg.

8 0
3 years ago
A 40.0 mL sample of 0.18 M HCI is titrated with 0.36 M CoHsNH2. Dctermine the pH at these points: At the beginning (before base
Whitepunk [10]

Answer:

at the beginning:

pH = 0.745

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HCl is a strong acid, so:

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       0.18 M             0.18        0.18.....equilibrium

before base is added:

∴ [ H3O+ ] ≅ <em>C </em>HCl = 0.18 M

⇒ pH = - Log [ H3O+ ] = - Log ( 0.18 )

⇒ pH = 0.745

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What is formed when two atoms of bromine bond together
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2 years ago
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