The bonds between hydrogen and oxygen in a water molecule are classified as(1) polar covalent(2) nonpolar covalent
(3) ionic
(4) metallic

Answers

Answer 1

Answer: (1) Ploar covalent. is the answer.

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There are three types of plate boundaries. Which choice is NOT a type of plate boundary?A) convergent
B) divergent
C) thrust
D) transform

Answers

The thrust is not the type of plate boundary.

The outer surface of the earth has been said to be composed of tectonic plates. The tectonic plates give rise to the shape of the zigzag puzzle. The puzzled plate boundaries are present in varying forms based on their shape.

The plate boundaries can be convergent. In this type of boundary, the earth's crust has been coming towards each other. They have been found between the Indian Plate and the Eurasian Plate.

The divergent plate boundary arises in the form of the earth crust moving away from each other. This will give rise to the mountain ranges.

The transform type of plate boundary has been formed when the tectonic plates slide over each other. This type of boundary has resulted in the San Andreas Fault.

The thrust is not the type of plate boundary.

For more information about plate boundary, refer to the link:

brainly.com/question/13434837

There Are Three Types Of Plate Boundaries. Which choice is NOT a Type Of Plate Boundary?

Answer:C. Thrust

The only way to emit IR photons is if there are empty electronic energy levels really close to the ground state (lowest energy level). True or False

Answers

Answer:

False. The statement is not entirely accurate.

Explanation:

Infrared (IR) photons can be emitted in various ways, not solely dependent on the presence of empty electronic energy levels close to the ground state. IR photons are typically associated with changes in molecular vibrational or rotational energy levels rather than electronic energy levels.

IR spectroscopy, for example, focuses on the interaction of IR radiation with molecules. When molecules undergo vibrational or rotational transitions, they can emit or absorb IR photons. These transitions are related to changes in the kinetic and potential energy of atoms within the molecule as they vibrate or rotate.

Electronic transitions, on the other hand, are responsible for phenomena like ultraviolet (UV) or visible light absorption and emission. In these cases, electrons move between electronic energy levels, which are typically at higher energy levels than the ground state. So, the emission of IR photons is not directly tied to electronic energy levels close to the ground state.

In summary, IR photon emission is primarily associated with vibrational and rotational transitions in molecules, and it is not contingent on the presence of empty electronic energy levels close to the ground state.

The ___________________ in the mouth secrete enzymes which help prepare the food for digestion in the stomach.a. teeth
B.tongue
C.salivary glands
D.pancreas

Answers

The salivary glands in the mouth secrete enzymes which help prepare the food for digestion in the stomach.

Answer: salivary glands

Explanation:

this is the correction i got 100% correct

A particle has 5 protons, 6 neutrons, and 5 electrons. What is its net charge.

Answers

It would have a zero charge because it is a neutral atom. The number of electrons which is a negative charge is equal to the number of protons which is positive, they will cancel each other out hence meaning it will become neutral

The empirical formula for a compound is CH2. If n is a whole number, which shows a correct relationship between the molecular formula and the empirical formula? a) empirical formula mass / molecular mass = n B) molecular mass = element mass / empirical formula mass ´ 100 c) subscript of H in empirical formula = 2 subscript of H in molecular formula D) subscript of C in molecular formula = n subscript of C in empirical formula

Answers

An empirical formula is the "reduced" version of a molecular formula. For example, CH3 is the empirical formula for C2H6, C3H9, C4H12, and so forth. The difference in subscripts between an empirical formula and molecular formula is given by the constant n. If n is a whole number, this means the numerator is the molecular formula. So the answer is D. subscript of C in molecular formula = n subscript of C in empirical formula. This can be rewritten as:

n = subscript of C in molecular formula/subscript of C in empirical formula

Answer:

Explanation:

Find the element that makes milk good for your health. Is it a metal, nonmetal or metalloid?

Answers

Answer is Ca which is a metal.

Explanation: Milk is composed of many elements such as Calcium (Ca), Magnesium(Mg), Phosphorus(P), Potassium (K), Zinc(Zn) ans Selenium(Se). The major component present is Ca.

Calcium present helps in the formation of bones and teeth and maintaining it to keep healthy.

Elements which can loose electrons easily to obtain a stable configuration is called as a metal.

Calcium is a metal as it can easily loose 2 electrons to obtain a stable configuration.

$Ca\rightarrow Ca^(2+) +2e^-$

Final answer:

Calcium, a metal, is the element in milk that makes it beneficial for health. It contributes to healthy bones, teeth, and the proper functioning of various body organs. Metalloids or semimetals like boron or silicon are not responsible for the health benefits of milk.

Explanation:

The element that makes milk good for health is Calcium. Calcium is a metal that is needed by the body for healthy bones, teeth, and proper function of the heart, muscles, and nerves. It is a representative metal that shows good conduction of heat and electricity. Milk is a primary source of Calcium, which is why it is considered beneficial for health.

On the other hand, elements such as boron, silicon, germanium, arsenic, antimony, and tellurium are considered metalloids or sometimes semimetals, which exhibit properties between metals and nonmetals. However, these are not the elements responsible for the health benefits of milk.