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Answer:
D) Vibrating in fixed position
Explanation:
just took it on edge 2020
Are there any choices? Because from what the question is it seems like we need choices to help
Related Questions
Conventional fossil fuels are harmful to the environment. Alternative solutions include using nuclear energy or solar energy. A decision to opt for solar power over nuclear energy might be based on which of these facts?A) Nuclear energy is highly unreliable and difficult to store. B) Solar power plants can be easily set up over small tracts of land. EliminateC) Wastes from nuclear power plants are harmful and difficult to manage. D) Solar energy is independent of season and can be easily trapped and stored.
Metal hydrides react with water to form hydrogen gas and the metal hydroxide. srh2(s) + 2 h2o(l) sr(oh)2(s) + 2 h2(g) you wish to calculate the mass of hydrogen gas that can be prepared from 5.00 g of srh2 and 5.47 g of h2o. (a) how many moles of h2 can be produced from the given mass of srh2?
What is the molecular geometry if you have a double bond, a single bond and 1 lone pair around the central atom?
What is the mass, in grams, of 1.50 mol of iron (III) sulfate?Express your answer using three significant figures.
B. 0.288 g
C. 0.392 g
D. 0.450 g
E. 0.341 g
Answers
Answer: The correct option is E.
Explanation: The reaction between aspirin (also known as acetylsalicylic acid) and sodium hydroxide is known as acid-base titration reaction.
By applying Unitary method, we get:
15.50mL of NaOH dissolves = 0.325 g of aspirin
So, 16.25 mL of NaOH will dissolve = = 0.341 g
Hence, the correct option is E.
Answers
Answer:
0.623 moles of H₂O.
Explanation:
- balanced equation: 2C₂H₆ + 7O₂ -> 4CO₂+ 6H₂O
Given:
- 6.23g of C₂H₆
- C₂H₆ molar mass is 30
solve for moles of C₂H₆
- moles = mass/mr
- moles = 6.23/30
- moles = 0.2077
solve for moles of H₂O using molar ratio
- 2C₂H₆ : 6H₂O
- 2 : 6
- 0.2077 : 0.623
Therefore, found that 0.623 moles of H₂O is produced.
Answers
Answer:
The ionic bond in NaCl are stronger than the stronger than the dispersion forces in HCl.
The hydrogen bonds in H2O are stronger than the dispersion forces in H2Se
Hydrogen bonds in NH3 are stronger than the dipole-dipole attractions in PH3.
Hydrogen bonds in HF are stronger than the dispersion forces in F2
Explanation:
Ionic bonds occur in molecules with high differences in their electronegative value where there are actual transfer of electrons. HCl has a bond which is involved in the sharing of electrons.
Hydrogen bonds are present in H2O which is stronger than the dispersion forces.
PH3 is a larger molecule with greater dispersion forces than ammonia, NH3 has very polar N-H bonds leading to strong hydrogen bonding. This dominant intermolecular force results in a greater attraction between NH3 molecules than there is between PH3 molecules.
F2 is a non-polar molecule, therefore they have London dispersion forces between molecules while HF has a hydrogen bond because F is highly electronegative.
Final answer:
Ionic bonds are stronger than dispersion forces in HCl, while hydrogen bonds are stronger than dispersion forces in H2Se, PH3, and F2.
Explanation:
In the given sentences, the blanks represent the types of intermolecular forces. The options given are ionic bonds, hydrogen bonds, dispersion forces, and dipole-dipole attractions. Ionic bonds are stronger than the dispersion forces in HCl. Hydrogen bonds are stronger than the dispersion forces in H2Se. Hydrogen bonds are stronger than the dipole-dipole attractions in PH3. Hydrogen bonds are stronger than the dispersion forces in F2.
Learn more about Intermolecular forces here:
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B He estimated the number of electrons in atoms of each element.
C He arranged the elements by different properties to find a pattern.
D He organized the elements by their atomic number.
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Mendeleeve's periodic table was based on the atomic mass of each element.
The correct answer is option A: He determined the mass of atoms of each element.
The periodic table can be described as a regular arrangement of elements based on some periodic properties. The periodic table has evolved through the ages. Its patter has been changed several times before it arrived at its present form.
The Mendeleev periodic table was based on the mass of atoms of the elements. This table was published in Russia in 1869. His table even predicted elements that were yet to be discovered.
Learn more: brainly.com/question/7373020
Answer:
1. He arrange the elements by different properties to find a pattern!
Here are the rest!
2.. atoms are indivisible
3. He determined the amount of charge on an electron
4. Like charges repel and opposite charges attract
5.Alpha particle deflection
Hope this helps the ballers!
Answers
Answer:
The concentration of the HNO3 solution is 0.103 M
Explanation:
Step 1: Data given
Volume of the unknow HNO3 sample = 0.125 L
Volume of 0.200 M Ba(OH)2 = 32.3 mL = 0.0323 L
Step 2: The balanced equation
2HNO3(aq) + Ba(OH)2 ( aq ) ⟶ 2H2O ( l ) + Ba( NO3)2 (aq)
Step 3:
n2*C1*V1 = n1*C2*V2
⇒ n2 = the number of moles of Ba(OH)2 = 1
⇒ C1 = the concentration of HNO3 = TO BE DETERMINED
⇒ V1 = the volume of the HNO3 solution = 0.125 L
⇒ n1 = the number of moles of HNO3 = 2
⇒ C2 = the concentration of Ba(OH)2 = 0.200 M
⇒ V2 = the volume of Ba(OH)2 = 0.0323 L
1*C1 * 0.125 L = 2*0.200M * 0.0323 L
C1 = (2*0.200*0.0323)/0.125
C1 = 0.103 M
The concentration of the HNO3 solution is 0.103 M
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a compass needle points north toward earths magnetic pole is an example of the electromagnetic force.
what is electromagnetic force ?
An electromagnetic force is one of the four fundamental forces a combination of both electrical and magnetic forces and this force is act up on the charged particles .
It is inversely proportional to the inverse square of the distance between particles, electromagnetic force can be attractive or repulsive shows infinite range and this force holds atoms together in molecules.
This force can be produced by electromagnetic fields, electrostatic field, and magnetostatic field which affects all of the universal objects due to its infinite range.
This force causes electric and magnetic effects like repulsion between like electrical charges or the interaction of bar magnets, it is weaker than the strong force.
For more details regarding electromagnetic force, visit
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answer:
a compass needle points north toward earths magnetic pole.
Explanation:
because of the earths magnetic field.