this is a lot of points and I will give brainlets for the correct answer

Answer:

A

Explanation:

If a compound begins with metal, it is most likely to be a metallic compound. Thus, option A is correct.

The metallic compound has been formed when the metal has been bonded with a metal or more than 1 metal by the ionic or covalent interaction.

The ionic interactions result in between the metal and non-metal or between two metals, and the covalent interactions have been found in the nonmetals.

The molecular compound has been the one that has been formed a molecule. All the compounds are molecular compounds.

Thus, if it starts with metal, it has been most likely to form a metallic compound. Thus, option A is correct.

For more information about the compounds with metal, refer to the link:

https://brainly.com/question/18665430

Answer:

Radioactive Decay

Explanation:

Answer: True

Explanation:

Answer:

B

Explanation:

Chemical and physical element properties are determined by their valence electrons metals with only one valence electron are poor conductors of electricity. Option B is correct.

Valence electrons are the electrons present at the valance shell or orbit of the atom and always take part in the chemical reaction or reaction with other metals and can conduct electricity.

If the atom contains only one valance electron in the outermost shell or valance shell then it cannot conduct the electricity properly due to the fewer number of electrons.

Therefore, Option B is correct. Chemical and physical element properties are determined by their valence electrons metals with only one valence electron are poor conductors of electricity.

Learn more about valance electrons, here:

https://brainly.com/question/866518

#SPJ2

Answer:

1 sulfide

2 Fluoride

3 A

5 A

6 2

Answer:

helllllooooooo hi how is life

Answer:

hiiii

Explanation:

Answer:

soul eater is a social enterprise

Explanation:

they donate a minimum of 10 percent to the soul community . soul water was born from the idea that everyone should be able to enjoy quality drinking tap water

Answer:

Explanation:

Saturated solution

Answer

There is nothing like viscosity in solid because most of the solids usually have a rigid body. This is due to strong intermolecular forces. And it is due to this strong force between the molecules that they are unable to move and they remain fixed at their position. Some solids such as graphite which have layered structure, don't possess the property of viscosity, because of the strong force between the layers.

Explanation:

Viscosity is the property of a fluid that opposes the relative motion between two surfaces of the fluid that are moving at different velocities. In simple terms, viscosity means friction between the molecules of fluid.

FOR EXAMPLE

water is "thin", having a low viscosity, while vegetable oil is "thick" having a high viscosity

Answer:C

Explanation:The samples are composed of different proportions of copper and zinc

Answer:

3

Explanation:

begining 0's are never significant

all numbers 1-9 are always significant

ending 0's are only significant when there is

a decimal.

Answer:

B

Explanation:

Answer:

The sun is what makes the water cycle work. ... Heat causes liquid and frozen water to evaporate into water vapor gas, which rises high in the sky to form clouds... clouds that move over the globe and drop rain and snow. This process is a large part of the water cycle.

Explanation:

Answer it doesn't contribute

Explanation: it doesn't contribute

Answer:

Explanation:

molar volume=moles*given volume

for molar concentration we use two formulas molarity and molality

molarity=no of moles/volume

molality=no of moles/kilogram

Answer:

[tex]711\ \text{mmHg}[/tex]

Explanation:

[tex]P_{total}[/tex] = Total pressure = 751 mmHg

[tex]P_{water}[/tex] = Vapor pressure = 40 mmHg

[tex]P_{gas}[/tex] = Pressure of gas

The total pressure in a system is given by Dalton's law

[tex]P_{total}=P_{gas}+P_{water}\\\Rightarrow P_{gas}=P_{total}-P_{water}\\\Rightarrow P_{gas}=751-40\\\Rightarrow P_{gas}=711\ \text{mmHg}[/tex]

The partial pressure of the hydrogen is [tex]711\ \text{mmHg}[/tex]

The volume at 100 mmHg : 0.656 L

Boyle's Law  

At a constant temperature, the gas volume is inversely proportional to the pressure applied  

[tex]\rm p_1V_1=p_2.V_2\\\\\dfrac{p_1}{p_2}=\dfrac{V_2}{V_1}[/tex]

V₁=3.5 L

P₁=2.5 kPa=18,7515 mmHg

P₂=100 mmHg

[tex]\tt \dfrac{18.7515}{100}=\dfrac{V_2}{3.5}\\\\V_2=\dfrac{18.7515\times 3.5}{100}=0.656~L[/tex]

Answer:

O, I, Ca

Explanation:

Answer: this is not my own words :)

Learn how factors, such as exposure to the atmosphere, the composition of rock and climate affect the rate of weathering. Weathering is the mechanical or chemical process by which rocks are broken down. The weathering that happens to rocks can be understood by relating it to the digestion of a chocolate chip cookie

One of the factors that affects the rate of weathering is exposure to the atmosphere. ... Another factor that affects the rate of weathering is the composition of rock. Rocks are composed of minerals, which are solid substances found within rocks that have their own distinct chemical composition.

Answer:

4.D. 2KJ

5.B. close to 0 degree celsius

Explanation:

heat absorbed= heat given out

100g * 4.2 * (x-0)= 400g * 4.2* ( 20-x) where x is the new temp reached

then x= 20

i.e. the temperature of ice increases to 5 degree celsius and the temperature of water decreases to 5 degree celsius .

hope it helps

Answer:

c. plastic is an insulator

Explanation:

a and b are metals which are conductors and d contains water which is also a conductor

Answer:

Explanation:

1 )

amount of heat required = mass x specific heat x rise in temperature

= 25 x 4.2 x 20 = 2100 J .

2 )

Amount of heat required

= mass x latent heat of vaporisation

= 50 x 2260 = 113000 J  .

3 )

Amount of heat required in melting the ice

= mass x latent heat of fusion

= 15 x 336 = 5040 J

4)

heat released in cooling water

= mass x specific heat x fall in temperature

= 5 x 4.2 x 10

= 210 J

5 )

amount of heat required = mass x specific heat x rise in temperature

84 = mass x 4.2 x 10

mass = 2 grams .

Answer:

the answer is letter B. the entropy

c well actually I remember being tought this but I cant remember it 100

Answer:

Explanation:

a. H3O+

b.  H3O+

c. CH3C(OH2)+

Answer: particle in gas have more energy than the particles in a liquid

Explanation: this is because the amount of energy is directly proportional to how random the system is. gaseous molecules are in a more constant random motion than the liquid molecules

Answer:

The correct answer is 10