stay the same
Explanation:
Answer:
The axis is tilted in the same direction throughout a year; however, as the Earth orbits the Sun, the hemisphere (half part of earth) tilted away from the Sun will gradually come to be tilted towards the Sun, and vice versa.
Explanation:
hop this helps!!
b. fulcrum
c. mechanical advantage
d. resistance force
Answer:
Mechanical Advantage
Explanation:
Answer:
Se + 2e- => Se-2
Explanation:
Ions are electrically charged particles, formed due to the gain or loss of electrons by an atom.
There are two types of ions cations and anions. An element that loses their electrons and forms positive ions are cations while metals and element that gains one or more electrons and forms negative ions are anions.
Selenium is an atom with atomic number 34 and represented as Se. The electronic configuration of Se is 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p4. Selenium will gain 2 more electrons to complete it p orbital and form an ion Se-2.
The equation is as below:
Se + 2e- => Se-2
Answer:
a because a container is supposed to be disposed every once in a while
The question describes a type of container, likely a plastic bag or similar packaging material, which is disposable, flexible, allows for easy storage, but is also easily punctured.
The question seems to be asking about a type of
container
that is disposable, flexible, allows for easier storage, but is easily punctured. This could likely refer to something like a plastic bag or a flexible packaging material. These types of containers are often used in various industries due to their convenience and cost-effectiveness. For example, in the food industry, a plastic bag as a container is
disposable
after use,
flexible
to fit various shapes and sizes of products, allows for
easier storage
because they can be folded when not in use, but they are also
easily punctured
which can result in product damage if not handled with care.
#SPJ11
Answer:
The percent yield of oxygen in this chemical reaction is 73.71 %.
Explanation:
Experimental yield of oxygen gas = 115.0 g
Theoretical yield:
Mass of potassium chlorate = 400.0 g
Moles of potassium chlorate =
According to reaction, 2 moles of potassium chlorate gives 3 moles of oxygen gas.
Then 3.2653 mol of potassium chlorate will give:
Mass of oxygen gas :
Percentage yield:
The percent yield of oxygen in this chemical reaction is 73.71 %.
AgNO3 + NaCl yields AgCl + NaNO3
Fe2O3 + 3H2O yields 2Fe(OH)3
CH4 + 2O2 yields CO2 + 2H2O
2Al +H2O yield 2Al(OH)3 + 3H2 (answer A)
is an example of single replacement reaction
This is because single replacement reaction involve an element reacting with a compound and take place of another element in that compound. Al an element react with to yield Al(OH)3 and H2. Al take place of H + therefore the reaction above is example of single replacement.