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tester [92]
3 years ago
12

Calculate the concentration of a 35.24ml Ca(OH)₂ Solution If 28.35ml of 1.21m HNO3 is needed to tritate

Chemistry
1 answer:
olya-2409 [2.1K]3 years ago
5 0

Answer:

Ca(PH)3

Explanation:

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The chemical reaction for photosynthesis is 6 CO2 + 12 H2O + light energy → C6H12O6 + 6 O2 + 6 H2O If the input water is labeled
r-ruslan [8.4K]

Answer: Isotope Oxygen 18 will remain the same before and after the reaction because the amount of neutrons are the same in a isotope

Explanation:

Isotopes 18-17 and 16 are the most stable in earth. Keep in mind that a Isotope is an atom that has equal amount of protons and electrons but neutrons ( as you can see in the imagine below) . That is why, an isotope like oxygen 18 will remain the same in a chemical reaction, because there is only a electron transfer when doing a new molecule.

5 0
4 years ago
In a 5.609g of H20, how many molecules H20<br> arc<br> present?
nignag [31]

Answer:

1.88 x 10²³molecules of H₂O

Explanation:

Given parameters:

Mass of H₂O  = 5.609g

Unknown:

Number of molecules of  H₂O  = ?

Solution:

To solve this problem, we need to find the number of moles of given compound first.

 Number of moles  = \frac{mass}{molar mass}  

Molar mass of  H₂O = 2(1) + 16  = 18g/mol

 Number of moles  = \frac{5.609}{18}   = 0.31mole

From mole concept;

            1 mole of a substance contains 6.02 x 10²³molecules

       0.31 mole of H₂O will therefore contain 0.31 x 6.02 x 10²³molecules

                                             = 1.88 x 10²³molecules of H₂O

       

8 0
3 years ago
A student uses eight chocolate sandwich cookies to model the Moon's phases. The student separates each cookie and removes frosti
Serjik [45]

The link below is a picture of the "Waning gibbus" phase,  really hope that it helps you out :D

4 0
3 years ago
Explain how Mendel used the F1 generation to conclude that genes are inherited.
fredd [130]

Answer:

studied the generation to see there traits

Explanation:

4 0
3 years ago
Read 2 more answers
The shadow of a groundhog ( or anything else ) is determined what?
Mekhanik [1.2K]

The size, length, and height of the figure are the main factors which determine the shadow of a organism.

6 0
3 years ago
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