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What is the total mass of a 10. gram sample of 42k that will remain unchanged after 12.4 hours?
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What total mass of a 16 gram sample of 60co will remain unchanged after 15.8 years?
The half-life of 27Co60 is about 5.27 years. 15.8 years is 3 half-lives, so 0.53 or 0.125 of the original sample of 16 g will remain, that being 2 g.
Suppose you sliced a pie into several pieces. The law of conservation of mass states that .?
The total mass remain unchanged.
What does the law of conservation mass states that during a chemical reaction total mass is what?
D. always equal to the total mass of the products.
If 20.00 g of a compound reacts completely with 30.00 g of another compound in a combination reaction how many grams of product are formed?
The total mass in a chemical reaction remain unchanged: 50 g.
How is conservation of mass in chemical and physical changes similar?
All matter has mass. Conserving matter means that you are conserving mass.
What total mass of a 16 gram sample of 60co will remain unchanged after 15.8 years?
The half-life of 27Co60 is about 5.27 years. 15.8 years is 3 half-lives, so 0.53 or 0.125 of the original sample of 16 g will remain, that being 2 g.
If you cut a solid in two pieces does the mass change?
The total mass remain unchanged but each piece has its mass.
Is it true that the amount of matter present appears to change during a chemical reaction?
The total mass remain unchanged.
Suppose you sliced a pie into several pieces. The law of conservation of mass states that .?
The total mass remain unchanged.
What does the law of conservation mass states that during a chemical reaction total mass is what?
D. always equal to the total mass of the products.
What happens Cost driver activity level increases within the relevant range?
total fixed costs remain unchanged
How does the conservation of matter tell us about atoms in chemical reactions?
Matter is neither created nor destroyed. Only change of bonds occur in atoms.
If 20.00 g of a compound reacts completely with 30.00 g of another compound in a combination reaction how many grams of product are formed?
The total mass in a chemical reaction remain unchanged: 50 g.
How is conservation of mass in chemical and physical changes similar?
All matter has mass. Conserving matter means that you are conserving mass.
The volume of air change without changing its mass why?
No. If the volume of air changes, so will its mass.
If Astatine-218 has a half-life of 1.6 s Suppose you have a 1.2-g sample of astatine-218 How much of the sample remains unchanged after 6.4 seconds Explain how you solved the problem?
After 1.6 seconds, 0.6 g astatine-218 remains unchanged. This amount is reduced by half to 0.3 g at 3.2 seconds. It is halved again at 4.8 seconds to 0.15 g, and halved once more to 0.075 g unchanged after a total of 6.4 seconds.
What is a antonym for sample?
Total or whole
