Nitrogen trifluoride is the inorganic compound with the formula NF3. This nitrogen-fluorine compound is a colorless, odorless, nonflammable gas. It finds increasing use as an etchant in microelectronics.
(If you mean by a gas of some sort)
False
if the pH is 8, this is basic because based on the pH scale, any below 7 is acidic, above 7 is basic and at 7 is neutral.
Answer:
The electrons are exposed to thermal energy/heat causing the excitation of the electron that is the electron in the outer orbital get absorbed and bounce to higher energy level.
Under the spectroscope, omitted wavelengths are seen with bright colors. For instance, light with longer wavelength appears red and light with shorter wavelength appear purple.
So, therefore, different metals will produce different wavelengths of light that are giving off a characteristic color of light.
Comparing the position of the colored light helps in the identification of substances.
Answer:
Increased heat makes all the molecules in the tea/water mix vibrate and move around a great deal more, thus increasing the rate of diffusion, and therefore increasing the rate of brewing.
Explanation:
hope i help lol :)
The answer is 33.33 %
The explanation:
According to the reaction equation:
MgCO3(s) + 2HCl (aq) --> MgCl2(aq) + H20(l) + CO2(g)
we can see that 1 mole of MCO3 will produce → 1 mole of CO2
-Now we need o get number of mole of CO2:
and when we have 0.22 g of CO2, so number of mole = mass / molar mass
moles = 0.22 g / 44 g/mol = 0.005 mole
∴ moles of Mg = moles of CO2 = 0.005 mole
∴ mass of Mg = moles * molar mass
= 0.005 * 84 /mol = 0.42 g
∴ Percent of MgCO3 by mass of Mg = 0.42 g / 1.26 * 100
= 33.33 %