All categories

3 years ago

Write the balanced chemical equation for the combination (synthesis) reaction of magnesium with oxygen gas. phases are optional.

1 answer:

6 0

The answer to this question would be:2 Mg + O2 = 2 MgO

Magnesium is a metal that can be oxidized easily. The reaction of magnesium and oxygen can be said as burning the magnesium. The reaction can provide a bright light with violet color. Magnesium used mostly in solid state and the oxygen is gas.

You might be interested in

1. Discuss briefly system and surrounding using suitable examples, highlighting heat transfers. 14 marks

lisabon 2012 [21]

A system is a part of the physical universe defined arbitrarily for observation purposes.

Boundaries are a part of the physical universe that are around the system.

In a scientific sense, a system is a part of the physical universe whose boundaries, that is, the limit between the system and its surroundings, are defined arbitrarily for observation purposes.

A system contains at least a model, represented in a phenomenological way, and it can be isolated (no mass nor energy interactions), closed (no mass interactions) or open.

The surroundings are a part of the physical universe that are around the system.

An example is a coffee-maker, where coffee-maker the system and air represents the surroundings, the coffee-maker receives energy from a heat source to warm up itself and releases part of such energy to the air.

We kindly invite to check this question on systems and surroundings: brainly.com/question/6044762

3 0

3 years ago

Suppose you have 100 grams of a radioisotope with a half-life of 100 years. How much of the isotope will you have after 200 year

Ulleksa [173]

Amount Remaining Years #half lives
100g 0 0
50 g 100 1
25g 200 2

8 0

4 years ago

Read 2 more answers

There are three different digits that make up the melting point of a compound. Describe these and detail what the sample looks l

Setler [38]

Answer:The three states of matter are the three distinct physical forms that matter can take in most environments: solid, liquid, and gas. In extreme environments, other states may be present, such as plasma, Bose-Einstein condensates, and neutron stars.

Explanation:

I'm pretty positive that's the right answer.........

4 0

3 years ago

Water is 11% hydrogen and 89% oxygen by mass. How many grams of oxygen are in a 250 g glass of water?

mylen [45]

Answer:

mass O2 = 222.5 g

Explanation:

%wt = ((mass compound)/(mass sln))×100

balance reaction:

2H2 + O2 ↔ 2H2O

∴ %wt H2 = 11 % = ((mass H2)/(mass H2O))×100

∴ %wt O2 = 89 % = ((mass O2)/(mass H2O))×100

∴ mass H2O 250 g

⇒ mass O2 = (0.89)(250 g)

⇒ mass O2 = 222.5 g

3 0

4 years ago

What di you think you would see happen in the bucket as ice comes into contact with high kinetic energy molecules?

cricket20 [7]

Answer:The ice will melt

Explanation:

5 0

3 years ago