Answer:
15.3 %
Explanation:
Step 1: Given data
- Mass of the sample (ms): 230 g
- Mass of carbon (mC); 136.6 g
- Mass of hydrogen (mH): 26.4 g
- Mass of nitrogen (mN): 31.8 g
Step 2: Calculate the mass of oxygen (mO)
The mass of the sample is equal to the sum of the masses of all the elements.
ms = mC + mH + mN + mO
mO = ms - mC - mH - mN
mO = 230 g - 136.6 g - 26.4 g - 31.8 g
mO = 35.2 g
Step 3: Calculate the mass percent of oxygen
%O = (mO / ms) × 100% = (35.2 g / 230 g) × 100% = 15.3 %
1. Milk.
2. What is in the bowl the popcorn, cereal, and pretzels.
3. Hot chocolate and hot milk.
4. Hot chocolate mix.
5. Hot milk.
6. No, because the hot chocolate powder was meant for hot liquids and with cold water it will take longer to dissolve.
You don't have to write exactly as me change it up if you need to hope this helps!!!
B. One
I believe that earth is the only planet that has life that we know of on it.
Answer:
The red blood cells will burst
Explanation:
When the red blood cells are placed in pure water, they will gain water by osmosis, swell and finally burst due to their weak cell membranes. This process is referred to as hemolysis.
