Look at the image.
What does this image represent?
a) hydroxyl group
b) ether group
c) carbonyl group
d) amine group

Answer:

Evaluate \dfrac {9}m+4

m

9

​

+4start fraction, 9, divided by, m, end fraction, plus, 4 when m=3m=3m, equals, 3.

Explanation:

Answer:

How does heat move?

Heat moves in three ways: Radiation, conduction, and convection.

Radiation happens when heat moves as energy waves, called infrared waves, directly from its source to something else. This is how the heat from the Sun gets to Earth.  In fact, all hot things radiate heat to cooler things. When the heat waves hits the cooler thing, they make the molecules of the cooler object speed up.  When the molecules of that object speed up, the object becomes hotter.

Explanation:

Explanation: Skeletal muscle, attached to bones, is responsible for skeletal movements. The peripheral portion of the central nervous system (CNS) controls the skeletal muscles. Thus, these muscles are under conscious, or voluntary, control. The basic unit is the muscle fiber with many nuclei. These muscle fibers are striated (having transverse streaks) and each acts independently of neighboring muscle fibers.

Answer:

Products

Explanation:

The materials you end up with in a reaction are called the products of the reaction.

For example;

        A  + B →  C + D

A and B are the reactants

C and D are the products.

Answer:

It contains 24 neutrons.

Explanation:

Mass number = Protons + Neutrons

If you were to have 24 neutrons, the mass number would be 36, invalidating the known information. You have 12 protons and 12 neutrons to form a mass number of 24. Remember that your protons are the same thing as the atomic number, so you can make an equation using your known information to derive true statements.

Answer:

A saturated solution is a solution that contains the maximum amount of solute that is capable of being dissolved. At 20°C, the maximum amount of NaCl that will dissolve in 100. g of water is 36.0 g.

Answer: unsaturated solution.

Answer: the number of circles in the electronic configuration of an element is represented in the periodic table as the period number that element is situated in. the number of electrons in the outermost shell of an element is represented in the periodic table as the group number that element is situated in.

Explanation: hope it helps :)

FISH BOWL REAL IT IN ITZ ME AND MY FREIND GO BUDD WORK WORK. LOLLLLLL

Answer:

58.44277 grams

Explanation:

Im in middle school and I know this! LOL

Answer:

No  

Explanation:

C is carbon and H is hydrogen

Answer:

There is not sodium (Na) in C2H6.

Sodium on the periodic table is Na and if present in a molecule would be shown in the chemical formula i.e. NaOH or NaCl. C2H6 is an ethane with a two carbon chain.

Answer:0.98 J

Explanation:

PE=mpg

PE=0.1x9.8x1

PE=0.98J

Answer:to find a mate, because of a diminished food source, drought, flooding, volcanic activity, destruction of habitat, human presence in a habitat, an earthquake, seasonal changes, overpopulation of an area

Explanation:

Answer:

ionic.

Explanation:

the electronegativity difference is greater than 1.7.

The type of bond between boron and fluorine in BF₃ is non-polar covalent bond.

Covalent bond is defined as a type of bond which is formed by the mutual sharing of electrons to form electron pairs between the two atoms.These electron pairs are called as bonding pairs or shared pair of electrons.

Due to the sharing of valence electrons , the atoms are able to achieve a stable electronic configuration . Covalent bonding involves many types of interactions like σ bonding,π bonding ,metal-to-metal bonding ,etc.

Sigma bonds are the strongest covalent bonds while the pi bonds are weaker covalent bonds .Covalent bonds are affected by electronegativities of the atoms present in the molecules.Compounds having covalent bonds have lower melting points as compared to those with ionic bonds.

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Answer: Hydrogen belongs to group 1 metal elements in the periodic table.

Explanation:

The hydrogen is a highly active metal. It has a single electron in its valence shell and it can donate its electron to other metal atoms. Thus forming metal hydrides.  The hydrogen when ignited it reacts with oxygen and burns explosively this is indicative of high reactivity and spontaneous reactivity of hydrogen atom.

Answer:

²³⁵₉₂U

Explanation:

               ²³⁵₉₂U

The nuclear symbol of U- 235 should be written as;

235 is the mass number of uranium. The mass number is written as the superscript before the symbol of the element.

92 is the atomic number of uranium. It is written as the subscript before the symbol of the element.

Answer:

9 is clay, silt, sand in that order

Explanation:

Loam soil contains 10 to 20 percent clay, 40 percent silt and 40 percent sand. Less than 50% of the soil is made up of minerals; the remainder is made up of organic matter and void space.

Clay, sand, plus silt are the three minerals that make up loam soil. Loam is the best soil for growing plants when mixed in the appropriate amounts. Less than 50% of the soil is made up of minerals; the remainder is made up of organic matter and void space.

In loam soil, little will grow without the latter two. The ideal combination of clay, sand, plus silt will provide the void where minerals, organic materials, water, and air may support life. Loam soil contains 10 to 20 percent clay, 40 percent silt and 40 percent sand. Basalt transforms into clay-like soil, whereas granite decomposes into silty sands.

Therefore, loam soil contains 10 to 20 percent clay, 40 percent silt and 40 percent sand.

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Answer:

Color Change.

Production of an odor.

Change of Temperature.

Evolution of a gas (bubbles)

Precipitate (formation of a solid)  

There are 5 so you can choose 4.

The four signs that a chemical reaction has occurred are as follows:

A chemical reaction may be defined as a process that significantly involves the chemical transformation of one set of chemical substances to another. This process involves the utilization of substances known as reactants that are transformed into other substances known as products.

Every chemical reaction involves the four signs which are mentioned above. These signs are delivered by chemical reactions along with determined products. But the mass of the reactants and products always remains the same. Precipitation is only visualized in specific reactions with the possessions of certain characteristics.

Therefore, the four signs that a chemical reaction has occurred are well-mentioned above.

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Answer:

Hippocampus

Explanation:

The main parts of the brain involved with memory are the amygdala, the hippocampus, the cerebellum, and the prefrontal cortex.

Memory impairment from marijuana use occurs because THC alters how the hippocampus, a brain area responsible for memory formation, processes information.

Answer:

1 atm

Explanation:

Given:

Atmospheric pressure = 760 torr

Find:

Atmospheric pressure in atm

Computation:

We know that ;

1 torr = 0.00131579atm

So,

760 torr = 760 x 0.00131579atm

760 torr = 1 atm (Approx)

Atmospheric pressure in atm = 1 atm

The diagram below has an atmospheric pressure of 760 torr. The

atmospheric pressure will be 1 atm.

This is calculated by converting Torr to atm which are both units of pressure.

The standard conversion formula is

1 torr = 0.00131579atm.

This means that

760 torr = 760 x 0.00131579atm

760 torr = 1 atm

Atmospheric pressure in atm is therefore 1 atm.

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I think its the

2nd one

Answer:

an intrinsic characteristic of a particular acid, not related to concentration

Explanation:

this is easy

An intrinsic characteristic of a particular acid is not related to concentration. Hence, option B is correct.

An acid is any substance that tastes sour, changes blue litmus paper to red, reacts with some metals to liberate hydrogen, and reacts with bases to form salts.

Whereas pH measures the concentration of solvated protons and does not tell us about the intrinsic acidity of chemical species present in solution, electrode potentials tell us about the intrinsic oxidizing power of the species present but provide no information on their concentration.

By the addition of a sufficient amount of redox indicator to a solution, its redox potential can be measured using redox electrodes.

Hence, an intrinsic characteristic of a particular acid is not related to concentration.

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Answer:

the higher the pH

Explanation:

Answer:

Hes right i took the quiz

Explanation:

Answer:

covalent bonds please mark me brainliest

Answer:

Chemical reactions occur when chemical bonds between atoms are formed or broken. The substances that go into a chemical reaction are called the reactants, and the substances produced at the end of the reaction are known as the products

Explanation:

Answer:

4 atoms of oxygen

Explanation:

2 atoms of oxygen gas O2

Answer:

4 atoms of oxygen

Explanation:

The given chemical formula is:

             2CO₂

Unknown is the number of atoms;

  There are :

C : 2 atoms of carbon

O: (2 x 2) atoms of oxygen in the given molecule

      4 atoms of oxygen

Answer:

When you try to move the atoms two close, their positive nuclei repel each other. 2. A covalent bond is an electric force of attraction between two atoms that share outer electrons. ... The protons in each nucleus are repelling each other strongly, it takes more energy to move the atoms closer together at this point.

Explanation:

Answer:

actually its d

Explanation:

J

J h2co3

two hydrogen(H2)

1 carbon (C)

3 oxygen (o3)