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Dafna1 [17]
3 years ago
8

WILL MARK BRAINLIEST!!! Think about how to determine the molar mass of NH4OH,

Chemistry
1 answer:
Andrej [43]3 years ago
3 0
The molar mass of NH4OH is 35
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Shown in the table below are solubility data for different salts in water at 60oC.
MaRussiya [10]

Answer:

D is the most soluble in water at 60 degrees Celsius

7 0
3 years ago
An element X combines with oxygen to form a compound of formula XO2. If 24.0 grams of element X combines with exactly 16.0 grams
tensa zangetsu [6.8K]

Answer:

atomic mass of X is 48.0 amu

Explanation:

Let y be the atomic mass of X

Molar mass of O_2 is = 2×16 = 32 g / mol

X + O2 -----> XO_2

According to the equation ,

y g of X reacts with 32 g of O_2

24 g of X reacts with Z g of O_2

Z = ( 32×24) / y

But given that 24.0 g of X exactly reacts with 16.0 g of O_2

So Z = 16.0

⇒ (32×24) / y = 16.0

⇒ y = (32×24) / 16

y= 48.0

So atomic mass of X is 48.0 amu

4 0
3 years ago
M<br> + e -&gt; M-1<br> This reaction represents
arlik [135]

Answer:

Reduction.

Explanation:

Reduction is the gain of electron.

8 0
4 years ago
evidence of a chemical change includes A) change in size B) change in color C) change in shape D) change in weight
Ilia_Sergeevich [38]

Answer:

The answer is B

Explanation:The answer is B because the color would be irreversible.

4 0
4 years ago
Hydrogen bonds:__________
Elina [12.6K]

Answer:

Option e.

Explanation:

The option 'e' fact about Hydrogen bonds are correct, that is; ''form weak interactions but can provide structural stability when many are found in a single molecule''.

So, what is this Hydrogen bond?

Hydrogen bonds is a kind of strong dipole- dipole attractions. Hydrogen bonding occurs as a result of the bonding between hydrogen and strongly electronegative atoms for example oxygen, Fluorine and so on.

Since we now know what Hydrogen bond is, let us take a look at the options.

(a) for the first option, we can see from above meaning of Hydrogen bonds that Hydrogen bonds occur between Hydrogen and a strong Electronegative atom. So, this option is wrong.

(b). Option 'b' is also wrong Because Hydrogen bonds does not occur between hydrogen and oxygen atoms ONLY but also with other strong Electronegative atoms such as oxygen.

(c). Option 'c' is wrong because between a strong and not only between a weak electronegative atom and hydrogen.

(d). Option 'd' is also not correct.

(e). Option 'e' is correct. Hydrogen bonds contribute to the effect of boiling and melting point of substance, solubilty, dimerization, strength of bonds, shape of molecules and so on

5 0
4 years ago
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