Answer:
D
Explanation:
D. A force acting in the direction opposite the object’s motion is removed from the object
Answer:
1. Ca(NO3)2 and AgCl3
2. AgCl3
3. Ca(NO3)2
4. a solid that forms out of a solution
Explanation:
1.
3CaCl2 + 2Ag(NO3)3 --> 3Ca(NO3)2 + 2AgCl3
Explanation:
Since [H+] [OH-] =10^(-14)
[H+] = (10^-14) / (1.4×10^-10)
First we need to find the number of moles that 43.9g of gallium metal is. We can do this by finding the molar weight of gallium and cross-multiplying to cancel out units:
![\frac{1mole}{69.723g}*\frac{43.9g}{1}=0.63mol_{Ga}](https://tex.z-dn.net/?f=%20%5Cfrac%7B1mole%7D%7B69.723g%7D%2A%5Cfrac%7B43.9g%7D%7B1%7D%3D0.63mol_%7BGa%7D%20%20%20)
So we are dealing with 0.63 moles of gallium metal.
We can take from the balanced equation that 4 moles of gallium metal will react completely with 3 moles of oxygen gas. We can take this ratio and make a proportion to find the amount of oxygen gas, in moles, that will react completely with 0.63 moles of gallium metal:
![\frac{4moles_{Ga}}{3moles_{O_{2}}} =\frac{0.63moles_{Ga}}{xmoles_{O_{2}}}](https://tex.z-dn.net/?f=%20%5Cfrac%7B4moles_%7BGa%7D%7D%7B3moles_%7BO_%7B2%7D%7D%7D%20%3D%5Cfrac%7B0.63moles_%7BGa%7D%7D%7Bxmoles_%7BO_%7B2%7D%7D%7D%20%20)
Cross multiply and solve for x:
![4x=1.89](https://tex.z-dn.net/?f=%204x%3D1.89%20)
![x=0.47moles_{O{2}}](https://tex.z-dn.net/?f=%20x%3D0.47moles_%7BO%7B2%7D%7D%20)
So now we know that 0.47 moles of oxygen gas will react with 43.9g of gallium metal.
Answer:
Imma just say acids have more acidity and bases have lower acidity...