All categories

3 years ago

Which of the following statements about the mass of an object is correct

Chemistry

1 answer:

Solnce55 [7]3 years ago

3 0

Answer: Mass remains constant

Explanation:

You might be interested in

What reagent would distinguish between Ag+ and Fe3+?

Andreyy89

The reagent which is used is "NaI", that is Sodium iodide.
When the reagent sodium iodide is added to distinguish the Ag⁺ ions and Fe³⁺ ions, it will react and form precipitate with one, while have no precipitates formed with the other, so that is how we can distinguish both of them.

8 0

3 years ago

Types OF SALTS<br>two examples

meriva

Sea salt and rock salt, rock salt is gathered from salt deposits found underground, sea salt is obviously from the sea :/

Hope this helps you

8 0

3 years ago

What is the volume of 45.0 grams of nitrogen monoxide , NO

gladu [14]

Answer:

$V=37.05\ L$

Explanation:

Given that:

Mass of $NO$ , m = 45.0 g

Molar mass of $NO$ , M = 30.01 g/mol

Temperature = 20.0 °C

The conversion of T( °C) to T(K) is shown below:

T(K) = T( °C) + 273.15

So,

T₁ = (20.0 + 273.15) K = 293.15 K

V = ?

Pressure = 740 mm Hg

Considering,

$n=\frac{m}{M}$

Using ideal gas equation as:

$PV=\frac{m}{M}RT$

where,

P is the pressure

V is the volume

m is the mass of the gas

M is the molar mass of the gas

T is the temperature

R is Gas constant having value = 62.36367 L. mmHg/K. mol

Applying the values in the above equation as:-

$740\times V=\frac{45.0}{30.01}\times 62.36367\times 293.15$

$740V=\frac{822685.94372}{30.01}$

$V=37.05\ L$

3 0

3 years ago

Which is another word for 10 meters in the metric system?

kotegsom [21]

Answer:

Dekameter

Explanation:

8 0

3 years ago

Kobotan [32]

Answer:

the answer is 1s22s22p63s23p1

8 0

3 years ago