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Alchen [17]
3 years ago
11

In water, bases form _____.

Chemistry
2 answers:
atroni [7]3 years ago
5 0
A base produces hydroxide ion in water
GREYUIT [131]3 years ago
4 0
An acid produces hydrogen ions (H+) in water. A base produces hydroxide ions (OH-) in water.
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How many molecules of Oxygen are consumed if 24 molecules of Carbon Dioxide are produced?
Nat2105 [25]

Answer:

Explanation:

C + O2 → CO2

Mole of C = 24 g/(12 g/mole)

Mole of C = 2 mole

Mole of molecular O2 = 74 g/(32 g/mole)

Mole of molecular O2 = 2.3125 mole

Since mole of C < mole of O2, then C being the limiting reagent.

From the reaction, it shows that mole ratio between C and O2 = 1 : 1.

So, 2 moles of C will stoichiometrically react with 2 moles of O2 to generate 2 moles of CO2.

Avogadro's law states that :"equal volumes of all gases, at the same temperature and pressure, have the same number of molecules i.e. 6.02 x 10^23 molecules/mole.

Therefore, 2 moles of CO2 contain 2 moles x 6.02 x 10^23 molecules/mole = 1.204 x 10^24 molecules of CO2 is formed.

6 0
2 years ago
Balance the following equation:<br>sodium + Sodium Nitrate = Sodium Oxide + Nitrogen
-Dominant- [34]
Na + NaNO3 = Na2O + N2

4 Na + 2 NaNO3 = 6 Na2O + N2

6 Na on each side
2 N on each side
6 O on each side
6 0
2 years ago
What is an example of a qualitative observation?
Lunna [17]

Answer:

20 cats.

Explanation:

7 0
3 years ago
If the density of water is 1g/cm3 what is its specific gravity
MakcuM [25]

Answer:

Specific gravity is the density of asubstance divided by the density of water. Since (at standard temperature and pressure) water has a density of 1 gram/cm3, and since all of the units cancel, specific gravity is usually very close to the same value as density(but without any units).

8 0
3 years ago
Read 2 more answers
Mendeleev put elements in groups while creating the periodic table. What important role do groups play in the structure of the p
NikAS [45]

Answer:

Groups show similar chemical properties about the elements

Explanation:

The periodic table is divided into groups and periods. Groups are vertical while periods are horizontal.

All elements in the same group possess the same number of outermost shell electrons. This number of outermost shell electrons controls the reactivity of the elements in the group.

Hence, groups show similar chemical properties of the elements in them, Groups separate elements into families which assist in the speedy study of elements.

3 0
3 years ago
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