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Flauer [41]
3 years ago
8

How do we find mass number of elements in chemistry ?​

Chemistry
1 answer:
sukhopar [10]3 years ago
5 0

Answer: Atomic number, atomic mass, and relative atomic mass

Explanation:

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Which of there is an indication that a chemical reaction has occurred?
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Answer is (b) , because a chemical change happened
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3 years ago
A formal operational thinker and a concrete operational thinker are both presented with three beakers containing red liquid and
Jlenok [28]

Answer:

The formal thinker would take a systematic approach in the combination of the liquids, thereby eliminating several unnecessary combinations that the concrete thinker would definitely combine.

Explanation:

The formal operational stage in thinking begins when a child gets to the age of 12 and continues to adulthood. The formal operational stage provides an individual with the ability to think abstractly by manipulating ideas in their head without concretely manipulating it. A concrete would have to see something to be able to manipulate any ideas.

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3 years ago
Which group is likely to react with chlorine to form compounds in the form xcl?
Umnica [9.8K]
Group 1 elements since they have one outermost electron which they can give to chlorine which has 7 outermost electrons in order to form a stable compound.

Example 
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4 0
3 years ago
A 25 liter balloon holding 1.5 moles of carbon dioxide leaks. If we are able to determine that 0.9 moles of carbon dioxide escap
ad-work [718]

Answer:

10 Litre

Explanation:

Given that ::

v1 = 25L ; n1 = 1.5 mole ; v2 =? ; n2 = (1.5-0.9) = 0.6 mole

Using the relation :

(n2 * v1) / n1 = (n2 * v2) / n2

v2 = (n2 * v1) / n1

v2 = (0.6 mole * 25 Litre) / 1.5 mole

v2 = 15 / 1.5 litre

v2 = 10 Litre

3 0
3 years ago
Which product has a bitter taste, is slippery when mixed with water, and can damage skin and eyes?
beks73 [17]

Answer:

sodium hydroxide

Explanation:

its a base and it can damage skin

7 0
3 years ago
Read 2 more answers
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