Answer: A and D, I believe
Explanation:
The purpose of this process is to make sure that the substance is completely melted before trying to figure up the mass. if there are still bits of solid in the liquid the mass will be incorrect if just taken the first time. Also, some substances have gaseous elements in them so to heat it up, it releases those gases and you’re left with the true mass in the liquid.
hope this helps!
1.23x10^2
So there should be one number to the left at all times, even a zero when it comes to decimals and negative scientific numbers. Also 10 is raised to the power by how many you need to move the decimal for the original number.
Answer:
true
Explanation:
because God created darkness and water first on th first day .according to order sources
Answer:
Pure iron sulfide is homogeneous (uniform in appearance and properties), shows constant composition (a consistent ratio of iron to sulfur throughout any sample of it, large or small), consists of molecules all of one type, is no longer separable into two separate substances without another chemical reaction, and is .
Explanation:
Mixtures in two or more phases are heterogeneous mixtures. ... The exception would be solutions that contain another phase of matter. For example, you can make a homogeneous solution of sugar and water, but if there are crystals in the solution, it becomes a heterogeneous mixture.