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OlgaM077 [116]
2 years ago
7

Pls fast pls due today pls pls I don’t wanna fail

Chemistry
1 answer:
BabaBlast [244]2 years ago
6 0

Answer:

2:true

3: true

4:false

5: true

Explanation:

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I need to know the following above
arsen [322]
3Zn + 8HNO3 ---> 3Zn(NO3)2 + 4H2O + 2NO IF IT IS COLD AND DILUT NITRIC ACID .

IF IT IS HOT AND CONCENTRATED THEN:

Zn+ 4HNO3 ---> Zn(NO3)2 +2H2O +2NO2
6 0
3 years ago
Magnesium has three naturally occurring isotopes. The most common, magnesium-24, accounts for nearly 80% of the magnesium found
Hitman42 [59]

Answer : There are mainly three isotopes of magnesium found in nature; namely Mg-24, Mg-25 and Mg-26. Out of which Mg-24 has 12 neutrons, Mg-25 has 13 neutrons and Mg-26 has 14 neutrons in their atoms. The number of protons and their atomic masses remains the same for the atom. The relative abundance in nature differs for all the three isotopes. Mg-24 has abundance nearly 80% in nature, Mg-25 has abundance as 10% and Mg-26 has 11.01% abundance.

7 0
3 years ago
For the reaction depicted in the molecular scenes, X is red and Y is green.(a) Write a balanced equation.
Vadim26 [7]

The balanced equation based on the scenes is given by ,

X2 + 3Y2 → 2XY3

Given ,

For the reaction depicted in the molecular scenes , X is red and Y is green .

Through observing the scenes , the balanced chemical equation of the scenes is given by ,

The scenes indicates 3 moles of molecule X2 reacts with 9 moles of molecule Y2 to form 6 moles of tetra atomic molecules XY3.

Thus the balanced equation is given by ,

3X2 + 9Y2 → 6XY3

Divide each side of the equation by 3 , we get , the balanced equation as,

X2 + 3Y2 → 2XY3

<h3>What is a balance chemical reaction ?</h3>

A balanced chemical reaction is a type of reaction which include the reactants and products in same amount i.e. the no of mole on both side of the reaction is remains same or balanced .

Learn more about chemical reaction here :

brainly.com/question/1893305

#SPJ4

3 0
1 year ago
if you have the chemical formula of a substance what can you figure out about its properties? explain, use the compound water h2
mezya [45]
You can find the makeup of the substance, such as water having two hydrogen atoms and one oxygen.
5 0
3 years ago
What are motrons in the subject ?
Tems11 [23]

Answer:

Are you talking about this?

A neuroma is growth (benign tumor) that arises in nerve cells. A Morton's neuroma is a swollen, inflamed nerve located between the bones at the ball of the foot...

Explanation:

5 0
3 years ago
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