Answer:
2Mg + O2 -> 2MgO
Explanation:
According to the above reaction ,
28.6g(2mole) Mg combine with 32g (1mole) of O2 to give 80.6g (2 mole) of MgO.
thus,
30g Mg will combine with 20g of O2 to produce 50g MgO and 10gO2 will remain unreactive.
I hope it's helpful!
Answer:
A series circuit is defined as the circuit in which a number of resistances are connected one after the other.. In a series circuit, the flow of current follows a single path.
A parallel circuit is defined as the circuit in which a number of resistances are linked across each other in such a way that one terminal of each resistance is connected to form a junction point while the remaining end is also connected to form another point.
You havent added the diagram so i cant tell you the answer, but i added the definition of each circuit, see if that helps!
Answer : As I understand this is question of matching the correct pairs.
So here are the correct pairs.
1) The attraction
between molecules at the surface of a liquid column
---->Surface tension
Surface tension is a phenomenon observed at the <span>surface film of a liquid which is usually caused by the attraction of the particles on the surface layer by the bulk moiety of the liquid, and which tends to minimize its surface area.</span>
2) The energy of
motion
----> Kinetic energy
Kinetic energy is the energy which is possessed by an object due to motion.
3) The movement
of liquids through the spaces of materials
----> Capillary action
Capillary action is defined as<span> the ability of any liquid to flow through the narrow spaces without any of the assistance, or even in opposition to, external force like gravitational force.</span>
4) The overall
movement of suspended or dissolved particles resulting from the random movements
of individual particles
----> Diffusion
Diffusion in liquids can be defined as the random movement of particles which are dissolved or are in suspended state in liquid.
5) Attraction of
one particle in a material for another
----> Cohesion
Cohesion is defined as the attraction between two different particles in a state of matter
6) The
attraction between unlike substances
----> Adhesion
Adhesion is a property of attraction between two unlike substances.
7) A measure oof
the resistance of a liquid to flow
----> Viscosity
Viscosity is the term used to define as the resistivity of liquid to flow.
Answer:
Achol
Explanation:
Reduction of other aldehydes gives primary alcohols. Reduction of ketones gives secondary alcohols. The acidic work-up converts an intermediate metal alkoxide salt into the desired alcohol via a simple acid base reaction.
Oxygen is diatomic and nitrogen is not
