​Figure 5 shows how the temperature of a substance changed as it was heated. Which segment of the graph indicates that the substance was undergoing a change of state?

Answer:

Groups: The vertical column of the periodic table that signifies the number of valence electrons in an element.

Period: The horizontal rows in the periodic table that signify the number of electron shells in an element.

Explanation:

Answer:Groups: The vertical column of the periodic table that signifies the number of valence electrons in an element. Periods: The horizontal rows in the periodic table that signify the number of electron shells in an element.

Explanation:

The table has seven rows and 18 columns. Each row represents one period; the period number of an element indicates how many of its energy levels house electrons.The columns of the table represent groups, or families, of elements.

Answer: Activation energy is defined as the minimum amount of extra energy required by a reacting molecule to get converted into product. It can also be described as the minimum amount of energy needed to activate or energize molecules or atoms so that they can undergo a chemical reaction or transformation.

Explanation:

Answer:

The nucleus of atom is composed of two subatomic particles that each have charges.

Both reside in the nucleus of an atom. The amount of protons and neutrons (Electrons can to) is what helps us identify each atom apart. Electrons are NOT in the nucleus of atom but orbit it in outer layers called orbitals.

Answer:

Highway 22 ,GA 31820

Explanation:

Answer:

Immune system

Explanation:

Rheumatoid arthritis is an autoimmune disease. Normally, your immune system helps protect your body from infection and disease. In rheumatoid arthritis, your immune system attacks healthy tissue in your joints. It can also cause medical problems with your heart, lungs, nerves, eyes and skin.

Answer:

C. Al

Explanation:

2Al+ 3H2SO4(l)------> Al2(SO4)3+ 3H2

Answer:

Explanation:

Hence,

The above statement is true for, the gas particles moves faster in high temperature.

Answer:

The alkali metals are the highly electropositive metals. Highly electropositive metals cannot be extraction carbon reduction process, because these metals do not react with carbon

Explanation:

Answer:

true

Explanation:

Answer:

That should be crucible tong

Answer:

q

=

64 kJ this is answer. .

Answer: essay the answer is B: precipitation

Explanation:

Answer:

So what you want to do is to place sulfur on top with the two fluorine's  on the bottom left and right hand side at slight angles. You don't want to make it look interconnected as one whole bond. Draw a single line from each "F" to the "S" to model two fluorine atoms bond to one sulfur atom (Single bond, only one electron is being shared between each).

The effects of long-term exposure to mustard gas causes mortality and chronic respiratory disease.

Exposure to mustard gas in the long term can result in mortality from influenza, pneumonia as well as chronic breathing disease. Exposure for long term leads to respiratory complications and septic shock. Extensive breathing in the environment of mustard gas can cause chronic respiratory disease, respiratory infections or death.

Extensive eye exposure to this gas can cause permanent blindness. Exposure to mustard gas may also increase the chances of lung and respiratory cancer so we can conclude that mustard gas is lethal and can cause a number of diseases in a person who is exposed to it.

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Answer:

The periodic table is a chart that arranges all of the chemical elements.The chemical elements are the substances that make up all matter. The amount of tiny particles in each element is the atomic number, which is how you identify it.

Explanation:

Answer:

Explanation: ionic bond, also called electrovalent bond, type of linkage formed from the electrostatic attraction between oppositely charged ions in a chemical compound. Such a bond forms when the valence (outermost) electrons of one atom are transferred permanently to another atom.

superscript Coefficient

Me think

Answer:

the 3rd answer

Explanation:

the earth is composed of key element like carbon Oxygen nitrogen phosphorus hydrogen and sulphur CHNOPS but they are other element on earth too even though they are not as essential

Answer:

Volume x Density = Mass of a substance

1300 x 0.67 = 871

The mass is 871 (unit)

Answer:

the organisms themselves,other organisms,interactions between living organisms, and even their waste.

Explanation:

When dilute HCl is added to a small amount of copper oxide in a beaker, a greenish-yellow gas is released and a bluish-green solution is formed. Since the metal oxides such as a Copper oxide (CuO) are basic in nature, it reacts with acids such as HCl to form the corresponding salt and water.

Answer:

It's because the solubility of gases in water is inversely proportional to the temperature, so it means when the temperature is increased, the solubility decreases, and the gases tend to get out from the soda

Answer:

9 grams of nitrogen gas

Explanation:

A 3.00-L container with O₂ at 4.00 atm is connected to a 2.00-L container with Ne at 2.00 atm, resulting in a final pressure of 3.20 atm in the container.

We have 2 containers connected by a valve.

One container has a volume of 3.00 L and contains O₂ at 4.00 atm. The other container has a volume of 2.00 L and contains Ne at 2.00 atm.

When the valve is opened, the total volume is the sum of the 2 containers.

[tex]V_2 = 3.00 L + 2.00 L = 5.00 L[/tex]

Assuming constant temperature and ideal behavior, we can calculate the final pressure of each gas using Boyle's law.

O₂

[tex]P_1 \times V_1 = P_2 \times V_2\\\\P_2 = \frac{P_1 \times V_1}{V_2} = \frac{4.00atm \times 3.00L}{5.00L} = 2.40atm[/tex]

Ne

[tex]P_1 \times V_1 = P_2 \times V_2\\\\P_2 = \frac{P_1 \times V_1}{V_2} = \frac{2.00atm \times 2.00L}{5.00L} = 0.800atm[/tex]

The final pressure in the container will be the sum of the final pressures of the gases.

[tex]P = 2.40 atm + 0.800 atm = 3.20 atm[/tex]

A 3.00-L container with O₂ at 4.00 atm is connected to a 2.00-L container with Ne at 2.00 atm, resulting in a final pressure of 3.20 atm in the container.

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Explanation:

Main compounds of milk are lactose and casein. And it is also called a colloidal mixture (i.e. in which one substance of microscopically dispersed insoluble or soluble particles is suspended throughout another substance). Therefore milk is regarded as a mixture not as a pure substance. So this is the required answer.

Answer:

no ofcourse not!

Explanation:

Answer:

no

Explanation:

the universe is way too big, maybe not in a conventional form but there are definitely aliens

Answer:

Photosynthesis converts carbon dioxide and water into oxygen and glucose. Glucose is used as food by the plant and oxygen is a by-product. Cellular respiration converts oxygen and glucose into water and carbon dioxide. Water and carbon dioxide are by-products and ATP is energy that is transformed from the process.

Explanation: