All categories

2 years ago

Would the amount of solid magnesium increase decrease or stay the same if you added a strong acid to it?

1 answer:

8 0

Solid Magnesium is considered as active metal so it reacts with strong acids like HCl and H₂SO₄ liberating Hydrogen gas according to the following equations:

Mg(s) + 2 HCl(aq) → MgCl₂(aq) + H₂(g)
Mg(s) + H₂SO₄(aq) → MgSO₄(aq) + H₂(g)

so the amount of solid magnesium decrease by addition of strong acid to it.

You might be interested in

adelina 88 [10]

Answer:

Similarity between photosynthesis and cellular respiration is that both process :

Involve production of energy

Exchange of gases

Goes through electron chain reactions

Explanation:

Photosynthesis : It is the process in which green plants containing chlorophyll prepare their food in the presence of Sunlight , water and carbon dioxide.This process occur inside chloroplast .

Here Food is prepared.Oxygen and food is produced as a result of photosynthesis .

The electrons triggers the reaction of food formation.

Energy is released during photosynthesis.

Gaseous exchange between CO2 and O2 occur.

Respiration :

It is the process in which living organism converts oxygen and food to water and carbon dioxide . Here energy is released in the form of ATP. It take place inside the mitochondria of the cell.

Exchange of Gases occur between organism and environment.

Here , mitochondrial electron transport occurs to produce ATP.

Hence , similarity between photosynthesis and cellular respiration is that both process:

Involve production of energy

Exchange of gases(carbon dioxide and oxygen)

Goes through electron chain reactions

7 0

2 years ago

Helppppppppppppppppppppp

alukav5142 [94]

decameters - meters: multiply by 10

meters to meters: multiply by 1

centimeters to meters: divide by 100

millimeters to meters: divide by 1000

For the rows at the bottom:

hectometer row: 100, multiply by 100, 4500

decameter row: 10, multiply by 10, 450

meter row: 1, multiply by 1, 45

decimeter row: 0.1, divide by 10, 4.5

centimeter row: 0.01, divide by 100, 0.45

im guessing theres a millimeter row at the bottom:

millimeter row: 0.001, divide by 1000, 0.045

hope this helps!

5 0

2 years ago

What has its own size and shape

erma4kov [3.2K]

I guess it is gases
I think , coz it has its own shape
Moves randomly

8 0

2 years ago

The atomic mass and abundance of Cr-50 is 49.946 amu and 4.3%. The atomic mass and abundance of Cr-52 is 51.941 amu and 83.8%. T

Sati [7]

Multiply the mass by the abundance and add each. Make sure to convert the percentage into a decimal. (49.946 * .043) + (51.941 * .838) + (52.941 * .095) + (53.939 * .024) = 51.99 round up using sig figs and the answer is c. 52.00 amu

6 0

2 years ago

Combined gas law problem: a balloon is filled with 500.0 mL of helium at a temperature of 27 degrees Celsius and 755 mmHg. As th

Papessa [141]

The statement of the combined gas law for a fixed amount of gas is,
PV/T = constant
Here, the units of pressure and volume must be consistent and the temperature must be the absolute temperature (Kelvin or Rankine).
0.65 atm is equivalent to 494 mmHg
Using the equation:
(755 x 500) / (27 + 273) = (494 x V) / (-33 + 273)
V = 3396 ml = 3.4 liters

8 0

3 years ago