Explanation:
Atoms are considered as the basic unit of matter because atoms combine to form matter. Atoms combine to form elements and compounds which further make up the atom.
Atoms contain electron, proton and neutrons. Electrons are negatively charged particles. They do not combine to form matter. A stable atom is a combination of fixed number of electrons, protons and neutrons.
Answer:
Prone to storm damage and limited to particular areas of the ocean
Explanation:
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Even when the wave power is beneficent towards the environment care, it has a notable disadvantage when high energy waves are took by the energy stations by cause of electrical failures which lead to the station breakdown. On the other hand, there are hard-to-access areas in the ocean which restricts the enforcement of this type of energy.
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(2) 15 mL of HCl(aq) at 20.°C
(3) 10. mL of H2O(l) at 35°C
(4) 15 mL of H2O(l) at 30.°C
Answer: The correct answer is option 3.
Explanation: Average kinetic energy is defined as the energy of motion of the particles of a system. It is a measure of Kelvin Temperature.
Mathematically,
where,
K = kinetic energy of the molecules measured in joules.
R = Gas constant =
= Avogadro's number =
T = Temperature in kelvins.
Kinetic energy is directly proportional to the temperature of the system.
More the temperature, more will be the kinetic energy of the molecules.
Hence, the correct answer is Option 3.
a substance that donates electrons to form a covalent bond
a substance that accepts a proton
a substance that donates a proton
Lewis acid is:
A. a substance that accepts electrons to form a covalent bond
A Lewis acid is accordingly any substance, for example, the H+ particle, that can acknowledge a couple of nonbonding electrons. At the end of the day, a Lewis acid is an electron-pair acceptor.
Thus, option A is correct.
Find more information about Lewis acid here:
Answer:
A: a substance that accepts electrons to form a covalent bond.
Explanation:
1 mol of Lead weighs more than 1 mol of Gold because lead has a higher atomic mass (207.2 g/mol) compared to gold's atomic mass (197.0 g/mol). Option D. is correct.
Consider the atomic masses of both gold and lead, as the question involves comparing a mole of each. Importantly, the molar mass of any substance is numerically equivalent to its atomic weight in Atomic Mass Units (amu). The atomic mass of gold is approximately 197.0 amu while lead has an atomic mass of around 207.2 amu.
Therefore, a 1 mol of Lead (207.2 g) would weigh more than 1 mol of Gold (197.0 g).
Learn more about Molar Mass here:
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