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umka2103 [35]
3 years ago
14

A reaction where Oxygen is a reactant.

Chemistry
2 answers:
skelet666 [1.2K]3 years ago
8 0
Chemical is the answer
Goryan [66]3 years ago
6 0

Answer:

chemical

Explanation:

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A 72.0-gram piece of metal at 96.0 °C is placed in 130.0 g of water in a calorimeter at 25.5 °C. The final temperature in the ca
tekilochka [14]

Answer: The answer is S = 0.1528 cal/g °C

Explanation:

By the law of conservation of energy, energy is neither created nor destroyed.

So, energy lost by metal pieces is equal to the energy gained by water in the calorimeter.

Specific heat of water is 1 cal/g °C

⇒ heat energy  Q = mSΔT, where m = mass of a substance

                                                        S = specific heat

                                                        ΔT = change in temperature

Now, the heat lost by metal piece, Q = 72×S×(96-31)

                                                      = 4680×S cal

Heat gained by water, Q = 130×1×(31-25.5)

                                        = 715 cal

⇒ 4680×S = 715.

⇒ S = 0.1528 cal/g °C.

6 0
3 years ago
NaCl and AgNO3 react in a double replacement reaction. Which is one of the products of this reaction?
hoa [83]

Answer:

nano3+agcl2

Explanation:

double displacement reaction

7 0
2 years ago
Find x, y, and z such that x³+y³+z³=k, for each k from 1 to 100.
Drupady [299]

Answer:

Honestly have no clue

Explanation:

................

3 0
3 years ago
Is is true or false that ocean currents affect the climate I certain regions on earth​
vfiekz [6]

True. Coastal regions are affected if it is warm currents over the ocean it make for a higher temperature over the land, if it's a colder current over the ocean it makes for temperatures to drop over land. This happens when the wind blows in from the sea.

3 0
3 years ago
Read 2 more answers
How many grams of Cl are in 525g of CaCl2
Tema [17]

First we determine the moles CaCl2 present:

525g / (110.9g/mole) = 4.73 moles CaCl2 present 

Based on stoichiometry, there are 2 moles of Cl for every mole of CaCl2:<span>
(2moles Cl / 1mole CaCl2) x 4.73 moles CaCl2 = 9.47 moles Cl </span>

Get the mass:<span>
<span>9.47moles Cl x 35.45g/mole = 335.64 g Cl</span></span>

8 0
3 years ago
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