What observations will you look for to determine if a metal undergoes reaction?

1 answer:

8 0

When a metal undergoes a reaction, especially with a nonmetal, you should look for the formation of salts or the formation of precipitates in the case the product is not soluble to water. Metals loses electrons to form positive ions which then reacts to nonmetals that are negatively charged ions.<span />

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When an electron moves to another orbital farther from the nucleus, does it gain or lose energy?

irina [24]

I believe that it loses energy, as it is moving away from the main power/control source.

3 0

3 years ago

How many moles are in 454 grams of dinitrogen trioxide (N2O3) ?

balu736 [363]

Answer:

5.97 mol

Explanation:

To find the number of moles when given the mass of a substance, we divide the mass of the sample by its molar mass.

so, we get,

nN203 = 454 g / 76.01 g /mol

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6 0

4 years ago

What is the average atomic mass of beanium

Amiraneli [1.4K]

Beanium or signically Bn

$\\ \sf\ast\Rrightarrow Atomic\:Mass=137.327u$

Lets simplify with significant figures

$\\ \sf\ast\Rrightarrow 137.33u$

$\\ \sf\ast\Rrightarrow 137.3u$

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3 years ago

At which age do health officials recommend vaccinations begin?

yaroslaw [1]

Answer:

Starting at 1 to 2 months of age, the baby will receive vaccinations

Explanation:

have a wonderful day!

8 0

3 years ago

Read 2 more answers

1)True or false

AlladinOne [14]

1) <span>Chemical reactions are always spontaneous when CHANGE IN H is negative and CHANGE IN S is negative</span>False

2)The driving force of a reaction is the change in kinetic energy.
True

3) In the reaction so2cl2 double arrows s02+cl2 heat is evolved. What happens when chlorine (Cl2) is added to the equilibrium mixture at constant volume?
b. The temperature of the system decreases.

4) In a reversible reaction, two substances are in equilibrium if the concentration of each increases by the same amount but the equilibrium constant remains unaffected.
True

5) A numerical value of the ratio of products to reactants, only at a specified temperature is called a(n)
b. equilibrium constant

6)At equilibrium,
a. all reactions have ceased.

7 0

4 years ago