What is the answer with the proper significant figures 7.6+2.401+0.68=

10.7

Explanation:

The addition of 7.6 + 2.401 + 0.68 = is 10.681.

According to the addition of sig figs, you want your answer to have the same amount of places, after the decimal point, as the least sig-fig figure.

7.6

2.401

0.68

+

10.681 - Draw a line straight down from the least sig-fig figure (7.6)

So the maximum figure after the decimal point is one. Since 8 is greater than 5, you have to round up from 10.6 to 10.7.

chemical properties are the characteristic of matter which can only be observed by changing the chemical identity of a sample like flammability reactivity and toxicity.

answer: -

reaction:

na + cl ⇌ nacl

balanced chemical equation:

na + 2cl ⇌ nacl2

sodium + clorine goes to form sodium chloride (table salt).

the product is nacl2.

and the reactants are na and cl.

(note: if you don’t know what ⇌ means, read below: -

⇌(double head arrow) means reversible reaction).