D melting ice cream because if u know what a physical change is its a change that you can reverse chimical change are changes you cant reverse so u can freeze back ice cream so :D
<u>Answer:</u> The mass percent of silicon in the given compound is 15.9 %
<u>Explanation:</u>
We are given:
A chemical compound having chemical formula
To calculate the percent by mass of silicon in given compound, we use the equation:
Mass of silicon =
Mass of compound =
Putting values in above equation, we get:
Hence, the mass percent of silicon in the given compound is 15.9 %
Answer: increase
Explanation: as pressure is increased, equlilibrium shifts towards the side with less moles of gas.
1. your skin is full of nerves. The skin feels the cold temperature which tells the nerves it is cold. the nerves then send signals to target muscle to start shivering. the rapid movement of the muscles then create heat, which keeps your body temperature where it should be.
2. if a person has high blood glucose levels, that means the body has too much sugar. This could mean that the pancreas is not producing enough insulin, which is a hormone that helps your body use the sugar for energy.
Answer:
the second one is synthesis reaction