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Anton [14]
3 years ago
13

Which describes a stationary reference point?

Chemistry
1 answer:
kondaur [170]3 years ago
7 0

Answer: C

Explanation:

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Which conversion factor should be used to solve the following problem?
sp2606 [1]

Answer:

2 moles of H₂O / 2 moles of HCl.

Explanation:

The balanced equation for the reaction is given below:

Ca(OH)₂ + 2HCl —> CaCl₂ + 2H₂O

From the balanced equation above,

2 moles of HCl reacted to produce 2 moles of H₂O.

Next, we shall determine number of mole of H₂O produced by the reaction of 3.25 moles of HCl. This can be obtained as follow:

From the balanced equation above,

2 moles of HCl reacted to produce 2 moles of H₂O.

Therefore, 3.25 moles of HCl will react to produce = 3.25 moles of HCl × 2 moles of H₂O / 2 moles of HCl.

Thus, the conversion scale is:

3.25 moles of HCl × 2 moles of H₂O / 2 moles of HCl.

3 0
3 years ago
In these solutions, identify the solute and the
myrzilka [38]

Answer:

1. solute

2. solvent

3.solvent

Explanation:

4 0
3 years ago
The attractive forces in a solid tend to be________ than in the liquid state​
Anika [276]

Answer: stronger

Explanation:

the attractive forces in a solid tend to be stronger_ than in the liquid state​, for the liquid state it tends to be weaker

5 0
3 years ago
The chemical equation of the reaction between Hydrogen and Oxygen is given below
Firdavs [7]

Answer:

1. a. The reactants are H₂ and O₂; The product is H₂O

b. The equation is not balanced because the number of atoms of the elements reacting is not equal to the number of atoms produced. 2 atoms of oxygen reacted but only one atom of oxygen is produced.

c. 2 H₂ + O₂ ---> 2 H₂O

2. a. The monotonic molecule is the sodium molecule, Na, since itnis made up of only one atom in its molecule.

The diatomic molecule is oxygen molecule, O₂, since it is made up of two atoms in its molecule.

b. The chemical compound present is sodium oxide, Na₂O

c. 4 Na + O₂ ---> 2 Na₂O

Explanation:

In a chemical reaction, the reactants are the elements or compounds which are converted to a new substance whichnis known as the product. The products are the new substances formed from the reactants.

In the given equation of reaction below;

H₂ + O₂ ---> H₂O

a. The reactants are H₂ and O₂; The product is H₂O

b. The equation is not balanced because the number of atoms of the elements reacting is not equal to the number of atoms produced. 2 atoms of oxygen reacted but only one atom of oxygen is produced.

c. 2 H₂ + O₂ ---> 2 H₂O

2. Given the reaction equation below:

Na + O₂ ---> Na₂O

a. The monotonic molecule is the sodium molecule, Na, since it is made up of only one atom in its molecule.

The diatomic molecule is oxygen molecule, O₂, since it is made up of two atoms in its molecule.

b. The chemical compound present is sodium oxide, Na₂O since itconsists of two chemically combined elements, sodium and oxygen.

c. 4 Na + O₂ ---> 2 Na₂O

6 0
3 years ago
A tank holding 7.80 L of gas is at a pressure of 9.80 atm. If the temperature and number of gas particles do not change, what is
krek1111 [17]

Answer:

14.42 atm.

Explanation:

We can use the general law of ideal gas: <em>PV = nRT</em>.

where, P is the pressure of the gas in atm.

V is the volume of the gas in L.

n is the no. of moles of the gas in mol.

R is the general gas constant.

T is the temperature of the gas in K.

  • If n and T are constant, and have two different values of V and P:

<em>P₁V₁ = P₂V₂</em>

<em></em>

P₁ = 9.8 atm, V₁ = 7.80 L.

P₂ = ??? atm, V₂ = 5.30 L.

<em>∴ P₂ = P₁V₁/V₂ </em>= (9.8 atm)(7.80 L)/(5.30 L) = <em>14.42 atm.</em>

7 0
3 years ago
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