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Likurg_2 [28]
2 years ago
5

Mass is usually measured using ?

Chemistry
1 answer:
Brut [27]2 years ago
8 0
Balance
Usually it’s a triple beam balance.
A ruler measures length
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If a radioactive material has a 10 year half-life, how much of a 100 g sample will be left after 30 years?
olga_2 [115]
12.5g, each 10 years you lose a half of what you have at that given moment

5 0
3 years ago
What is the gram formula mass of Glycine , NH2CH2COOH
dem82 [27]
N=14
H= 1(5)= 5 
C=12(2)=24
O=16(2)=32

= 75
6 0
3 years ago
If a liter of water is cooled from 50 to 30 what happens to its volume
dangina [55]
In general when you heat up a liquid such as water its volume "increases" as the heat energy causes the water molecules to move leading to more space between molecules causing it to occupy a larger volume.

hope that helps
7 0
3 years ago
Read 2 more answers
According to Newton’s second law of motion, when an object is acted on by an unbalanced force, how will that object respond? It
otez555 [7]

Answer:

C) It will accelerate.  

Explanation:

According to Newton’s second law of motion, when an object is acted on by an unbalanced force, it will accelerate.

An unbalanced force will change the speed or direction (or both) of an object. A change in speed and/or direction is acceleration.

A) is wrong. The object will stop moving only if there is a balanced force in the opposite direction.

B) is wrong. The object will decrease speed only if the unbalanced force has a component opposite to the direction of motion.

d) is wrong. The object will increase speed only if the unbalanced force has a component in the direction of motion.

7 0
3 years ago
How many atoms of gold are in gold nugget with a mass of 4.25 g
Feliz [49]
Number of Atoms in Gold for given mass can be calculated using following formula,

              # of Moles  =  Number of Atoms / 6.022 × 10²³
Or,
             Number of Atoms  =  Moles × 6.022 × 10²³     ------- (1)    

Calculating Moles,
As,
                              Moles  =  Mass / M.mass
So,
                              Moles  =  4.25 g / 196.96 g/mol

                              Moles  =  0.0215

Putting value of mole in eq.1,

             Number of Atoms  =  0.0215 × 6.022 × 10²³

             Number of Atoms  =  1.299 × 10²²

Result:
            4.25 g 
of Gold Nugget contains 1.299 × 10²² Atoms.
3 0
3 years ago
Read 2 more answers
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