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Taya2010 [7]
3 years ago
7

After 4 half-lives 10 grams of uranium remains. How much uranium did you start with?

Chemistry
1 answer:
Free_Kalibri [48]3 years ago
4 0

Answer:

i think 40 grams

Explanation:

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Name the following bases.
zheka24 [161]

Answer:

1

Explanation:

Ferric Hydroxide

3. 1

Fe. (OH)

Fe(OH)3

6 0
2 years ago
(0904) How many atoms are there in 56.2 grams of Krypton, Kr?
Luba_88 [7]

Answer:

56.2÷6.02×10^23

=9.34×10^23

Explanation:

Divide the given mass of the atom by the mass of an Atom (the avogadro's constant) to find the number of atoms in the given mass.

8 0
3 years ago
If 16.0 mL of acetone is dissolved in water to make 155 mL of solution what is the concentration expressed in volume/volume % of
Lady_Fox [76]
Percentage by volume of solution is the percentage volume of solute in total volume of solution.
Volume percentage (v/v%) = volume of solute / total volume of solution x 100%
volume of solute - 16.0 mL
total volume of solution - 155 mL 
v/v% = 16.0 / 155 x 100% = 10.32%
this means that in a volume of 100 mL solution, 10.32 mL is acetone.
7 0
3 years ago
How many atoms of fluoride are there in one molecule of nitrogen trifluoride?
Helga [31]

Answer:

there are three Fluorine atom. This is because Nitrogen give 3 electron away but fluorine can only take 1. So nitrogen gives 1 neutron to 3 fluorine each which makes it a stable compound

6 0
3 years ago
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Spell out full name of compound
Margarita [4]
Hydroxide is the full name of the compound.

Hope this Helped!

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Brainliest??
7 0
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