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pentagon [3]
3 years ago
5

In a modern system of classification, two organisms would be

Chemistry
1 answer:
lesya [120]3 years ago
3 0

Answer:

could be species I think

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Sulfur dioxide _____.
Allushta [10]

Answer:

The correct answer is option C, that is, has an irritating odor and is colorless.

Explanation:

Sulfur dioxide refers to a gas. It has a nasty, sharp smell and is invisible. It associates with other components to produce harmful compounds like sulfurous acid, sulfuric acid, and sulfate particles. It is the chemical compound with the formula SO. At standard temperature, it is a toxic gas with an irritating and pungent smell. The gas is released naturally by the volcanic activity.

5 0
3 years ago
1234567 sc: thatbitxh.lizzy
sesenic [268]

Answer:

okyay

Explanation:

lol

8 0
3 years ago
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How many moles are in 3.2x10^23 atoms of francium?
andrew11 [14]

Answer:

i do not know i think the answer is 23

Explanation:

6 0
3 years ago
Answer A B C and D please for my chemistry hw
r-ruslan [8.4K]

<u>Answer:</u> The equations are provided below.

<u>Explanation:</u>

Skeleton equations are defined as the equations which simply indicate the molecules that are involved in a chemical reaction. These equations are unbalanced equations.

Balanced equations are defined as the chemical equation in which number of individual atoms on the reactant side must be equal to the number of individual atoms on the product side.

  • For A:

Water decomposes in the direct current to form hydrogen and oxygen.

Skeleton Equation: H_2O(l)\rightarrow H_2(g)+O_2(g)

Balanced Equation: 2H_2O(l)\rightarrow 2H_2(g)+O_2(g)

  • For B:

Mercury (II) oxide decomposes in heat to form mercury, oxygen.

Skeleton Equation: HgO(s)\rightarrow Hg+O_2

Balanced Equation: 2HgO(s)\rightarrow 2Hg+O_2

  • For C:

Calcium carbonate when heated forms calcium oxide and carbon dioxide.

Skeleton Equation: CaCO_3(s)\rightarrow CaO(s)+CO_2(g)

Balanced Equation: CaCO_3(s)\rightarrow CaO(s)+CO_2(g)

  • For D:

Group 2 hydroxides, when heated forms oxide and water vapor.

Skeleton Equation: Ca(OH)_2\rightarrow CaO+H_2O

Balanced Equation: Ca(OH)_2\rightarrow CaO+H_2O

3 0
3 years ago
Which of these is correct?
Viktor [21]

Answer:

1.89 nol Cu(NO3)2

Explanation:

if you calculate it it will be 1.89

5 0
2 years ago
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