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Korolek [52]
3 years ago
7

Magnesium metal put into acid? Physical or chemical change

Chemistry
2 answers:
e-lub [12.9K]3 years ago
4 0
Physical. The Magnesium is physically put into acid.
Angelina_Jolie [31]3 years ago
4 0
The answer is Physical Change. Magnesium metal put into acid it is called physical change. Physical Change is a substance it does not have a change, or arrangement of molecules it also be change. Hope it helped you!
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Nitric acid is a key industrial chemical, largely used to make fertilizers and explosives. The first step in its synthesis is th
Hunter-Best [27]

Answer:

The answer is 0.36 kg/s NO

Explanation:

the chemical reaction of NH3 to NO is as follows:

4NH3(g) + 5O2(g) ⟶4 NO(g) +6 H2O(l)

We have the following data:

O2 Volume rate = 645 L/s

P = 0.88 atm

T = 195°C + 273 = 468 K

NO molecular weight = 30.01 g/mol  

we calculate the moles found in 645 L of O2:

P*V = n*R*T

n = P*V/R*T

n= (0.88 atm * 645L/s)/((0.08205 L*atm/K*mol) * 468 K) = 14.78 moles of O2

With the reaction we can calculate the number of moles of NO and with its molecular weight we will have the rate of NO:

14.78 moles/s O2 * 4 molesNO/5 molesO2 * 30.01 g NO/1 molNO x 1 kgNO/1000 gNO = 0.36 kg/s NO

8 0
3 years ago
Which substance produces hydroxide ions in solution?
Olegator [25]

Answer:

An Arrhenius Base

Explanation:

The definition of this is a base that is a hydroxide ion donor.

8 0
2 years ago
Give examples to three solutions you commonly use and identify the solvent and solutes that make it each up.
8_murik_8 [283]
Mouthwash:
solvent - water
solute - alcohols

vinegar:
solvent - water
solute - acetic acid

bleach:
solvent - water
solute - sodium hypochlorite

hope this helps!!

8 0
3 years ago
Read 2 more answers
Which example is a renewable energy source?
Ierofanga [76]
Sunlight is collected from a renewable resource, which is naturally replenished one a human timescale
4 0
3 years ago
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3 L of a gas at 250 K is changed to a temperature of 300 K. What is the final volume?
ANTONII [103]

Answer:

you can simply answer vl\t1=v2/t2

3 0
3 years ago
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