Heather puts a straw into glass of water. She notices that when she looks through the glass and the water from the side, the straw appears to be broken. Which term best explains why the straw looks like it broken? A. Absortion B. Refraction C. Scattering D. Transmission

Answer: The box will displace towards right side.

Explanation:

In the given problem, a 5 N force pushes on the right side of a box. At the same time, a 10 N force pushes on the left side of the box. The net force acting on the force is 5 N.

The magnitude of the force acting on the box from the left side is more than the force acting on the box from the right side. The body will displace in that direction in which the magnitude of the applied force is more.

The box is displaced to right by a net force of 5 N.

Therefore, the box will displace towards right side.

Answer :

Law of conservation of mass : It states that the mass of reactant molecules must be equal to the mass of product molecules.

[tex]Mg+HCl\rightarrow H_2+MgCl_2[/tex]

First we have to balance the chemical reaction.

[tex]Mg+2HCl\rightarrow H_2+MgCl_2[/tex]

Now we have  to calculate the mass of reactant side molecules and product side molecules.

Mass of reactants = [tex]Mg+2HCl=(24)+2(1+35.5)=97g[/tex]

Mass of products = [tex]H_2+MgCl_2=2(1)+(24+2(35.5))=97g[/tex]

From this we conclude that the mass of reactant is equal to the mass of product.

Answer:

Law of conservation of mass do not apply to this equation.

Explanation:

The law of conservation of mass states that the mass of objects/element before any reaction must be equal to the mass of objects/element after the reaction.  

Here in this case –  

Mg+HCL->H2+MgCl2

Mass of Mg before reaction = 1

Mass of H before reaction = 1

Mass of Cl before reaction = 1

Mass of Mg after reaction = 1

Mass of H after reaction = 2

Mass of Cl after reaction = 2

Thus it is clear that mass of H and Cl before and after the reaction is not equal and thus law of conservation of mass do not apply to this equation.

Solids, liquids, and gases can be distinguished by their shape, density, and kinetic energy, while molecular weight and mass remain consistent across the states of matter.

Solids, liquids, and gases, the three common phases of matter, can be distinguished by several properties. Solids have a definite shape and volume. Liquids have a definite volume but adapt to the shape of their containers. Gases, on the other hand, have neither a definite shape nor a specific volume, as they expand to fill their containers.

The characteristics that distinguish these states include:

The properties that do not generally differ across the different states of matter include molecular weight and mass. A substance's mass or molecular weight remains consistent regardless of whether it is a solid, liquid, or gas.

The volume of 325 g of metal with a density of 9.0 g/cm³ is 36.11cm³

HOW TO CALCULATE VOLUME:

Volume(mL) = mass(g) ÷ density (g/mL)

Volume = 325g ÷ 9g/cm³

Volume = 36.11cm³

Therefore, the volume of 325 g of metal with a density of 9.0 g/cm³ is 36.11cm³

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