They vibrate back and forth
Answer:
3.25 L
Explanation:
A 2.0M solution of HCl will have 2 moles of HCl for each liter of solution. 1.5 liters of 5.0M NaOH has a total of 5*1.5=7.5 moles of NaOH. Therefore, you would need 7.5/2=3.25 liters of HCl. Hope this helps!
Answer: C) it displaces an equal or greater amount of water then its own weight.
Explanation:
Let's begin by explaining that the bouyant force is the force the fluids exert in a submerged body or object, and is directed upwards. This is also in accordance with the Archimedes’ Principle:
<em>A body totally or partially immersed in a fluid at rest, experiences a vertical upward thrust equal to the mass weight of the body volume that is displaced.</em>
So, since <u>the density of a body is related to its buoyancy</u>, <u>a body will float on another fluid if its density is lower</u>. In the case of the ship, its volume is greater than its mass. However, this is not the only thing.
Ships are designed by the engineers to displace an amount of ocean water that is equivalent to their own mass in order to keep it afloat.
In other words: Ships displace its own weight in water.
This is accomplished by making the <u>ship less dense than ocean water and by the design of a wide U-shaped hull.</u> So, as the ship displaces its hull pushes water away, while the pressure of the ocean pushes up against the ship's hull; and this combination of forces (The weight of the ship and buoyant force) acting simultaneosly prevent the ship from sinking despite its huge mass.
Answer:
H2SO4 + 2NaOH → Na2SO4 + 2H2O
Explanation:
This question is describing the neutralization reaction between dilute sulfuric acid (H2SO4) and sodium hydroxide (NaOH). These two compounds combine to form sodium salt and water as products (see the chemical equation below).
H2SO4 + NaOH → Na2SO4 + H2O
However, this equation is not BALANCED because the number of atoms of each element are not the same on both sides of the equation. To balance the equation, COEFFICIENTS are used as follows:
H2SO4 + 2NaOH → Na2SO4 + 2H2O
From this equation, the atoms of hydrogen (H), sulphur (S), oxygen (O), sodium (Na) are now equal on both sides, hence, it is said to be BALANCED.