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Trava [24]
3 years ago
14

Which of the following cannot be the chemical symbol for an element

Chemistry
1 answer:
sveta [45]3 years ago
8 0
Cf is not a symbol

co = cobalt
b = barium
cu = copper
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A sample of juice has a pH of 4.2. Whsat is the concentration in mol/dm3 of OH in the juice?<br>​
Annette [7]

Answer:

6 * 10^-4M

Explanation:

use this equation

[ H + ]  =  10  −  pH

6 0
3 years ago
Living sustainably means living on ____—the renewable resources such as plants, animals, soil, clean air, and clean water provid
irga5000 [103]

Answer:

natural income

Explanation:

Living sustainably in the 21st century means coexisting with the nature. In other words, to live sustainably means to meet the needs of the human without affecting or degrading the mother nature.

In the context, living sustainably means to live from the natural income from the nature's gift to us, using their natural resources and not hurting them or exploiting them. They may be resources from the soil, plants, clean air, animals, nature's clean water,etc.

5 0
3 years ago
The solubility of a certain compound in ice-cold water is 0.16 g in 100 mL. Its solubility in hot water is 4.35 g in 100 mL. Wha
jonny [76]

Answer:

96.32 %

Explanation:

Given that:

The solubility of compound in hot water = 4.35 g / 100 mL

The solubility of compound in cold water = 0.16 g / 100 mL

Which means that in 100 mL of hot water, the dissolved compound is 4.35 g and in cold water, the dissolved compound is 0.16 g

Hence, on transition, compound that will catalyze is 4.35 - 0.16 g = 4.19 g

So,

\%=\frac {4.19}{4.35}\times 100

Percent recovery for re-crystallization of this compound from water= 96.32 %

3 0
3 years ago
how many grams of the excess reactant are left over according to the reaction below given that you start with 10.0 g of al and 1
stepan [7]

Answer:

Given the reaction NH3 + O2 = NO + H2O, 3.25 g of NH3 is allowed to react with 3.50 g of O2. Which reactant is the limiting reagent? How many grams of H2O are formed? How much of the excess reactant remains after the reaction?

5 0
3 years ago
A balanced equation representing a chemical reaction can be written using
azamat

Answer:

  • A balanced equation representing a chemical reaction can be written as <u>Coefficients</u><u>.</u>
3 0
3 years ago
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