D. reproductive cells uwu
Answer:
1.09 grams
Explanation:
According to the following chemical equation:
HF + NaNO₃ -> HNO₃ + NaF
1 mol of hydrogen fluoride (HF) produces 1 mol of sodium fluoride (NaF). Thus, we first convert from mol to grams by using the molar mass (MM) of each compound:
MM(HF)= (1 g/mol x 1 H) + (19 g/mol x 1 F) = 20 g/mol HF
1 mol HF x 19.9 g/mol HF = 20 g
MM(NaF) = (23 g/mol x 1 Na) + (19 g/mol x 1 F) = 42 g/mol NaF
1 mol NaF x 42 g/mol NaF = 42 g
Thus, from 20 g of HF are produced 42 g of NaF ⇒ 20 g HF/42 g NaF. We multiply this stoichiometric ratio by the mass of NaF produced to calculate the required mass of HF:
20 g HF/42 g NaF x 2.3 g NaF = 1.09 g HF
Therefore, 1.09 grams of HF are necessary to produce 2.3 g of NaF.
Answer:
As the planets mass distribution around the sun changes, the point which the planets orbit changes slightly, disrupting any circular orbits
Explanation:
Answer:
the answer of this question is 0.000058
Answer:
In the explanation
Explanation:
First of all, make sure you re-read the lesson carefully and memorize the definitions. pls
forces are push and pull.
And just give an example of like someone pushing a sofa into the living room (push).
Another example of pull is pulling a door knob to open a door.
And ANOTHER example can be pushing a tissue box or anything.
Forces can be balanced and unbalanced, that is correct.
When the netforce is equal to 0 then it is balanced, if not then it’s unbalanced.
Balanced which results a netforce equals to 0, there is no change in motion.
Unbalanced which causes in the object's motion changing (For example an tug of war, some guy pulls 10N to the right and the other person 5N to the left, obviously the netforce will be 5N to the right; Unbalanced force)
Last two boxes, maybe add examples as I mentioned? And add another example from ur textbook or something.
