Answer:
2FeBr3 + 3Na2S ➡️ Fe2S3 + 6NaBr
Jet Takeoff because it is the loudest according to the chart by the number of decibels.
Answer:
Incomplete
Explanation:
I wouldn't say that a scientific theory is wrong.
It is the best we have at the time, based on all available knowledge .
As each new discovery is made, scientists modify the theory to fit the new knowledge.
The scientific method is a never-ending process.
Answer:
D. the mass of one mole of a substance
Explanation:
The molar mass of a substance is the mass in grams of one mole of the substance.
- For an element, the molar mass is the relative atoms mass expressed in grams.
- For example 23g of Na, 40g of oxygen
- For compounds, molar mass is the gram -formula or gram - molecular weight.
- This is determined by the addition of its component atomic masses and then expressed in grams.
Answer:
I believe the answer would be A, remain 5g because heating the balloon would increase the speed of the gas molecules, but not necessarily change the amount
