Answer:
Explanation:
The Law of Conservation of Mass states that mass cannot be created or destroyed.
In terms of a chemical reaction, the mass of the reactants has to equal the mass of the products.
The reactants are A and B. The mass of A is 19 grams and the mass of B is 24 grams. Add the masses.
This is the mass of the reactants.
The products and C and D. The mass of C is 15 grams. The mass of the products has to equal the mass of the reactants, which is 43 grams. Subtract 15 from 43 to find D's mass.
<u>28 grams</u> of D will be produced.
Answer:
the surface may become etheir scratchy and soft and that the surface may also be come heated up due to friction
False (i think im not 100%)
Answer:
a) unstable
b) unstable
c) unstable
d) Stable
Explanation:
a)
The given isotope , atomic number is greater than 83.(84>83).
Therefore, it is unstable.
b)
The given isotope has even number of protons(15) and neutrons(15).
Therefore, it is unstable.
c)
The given isotope has even number of protons(15).
Therefore, it is unstable.
d)
The given isotope have even number of neutrons ( 68) an d the proton ratio is .It is more than 1.25.
Therefore, it is stable.
Answer:- 0.456 L
Solution:- Looking at the given information, only volume and pressure are changing and the temperature is constant. We know that, at constant temperature, the volume of the gas is inversely proportional to the pressure.
= 735 torr
= 807 torr
= 500. mL
= ?
Let's plug in the values in the equation and solve it for final volume.
since, 1 L = 1000 mL
= 0.456 L
So, the volume of carbon dioxide at the new pressure will be 456 mL or 0.456 L.