CHEMISTRY HIGH SCHOOL

Which of the following elements is an example of a metalloid? Silicon

Sodium

Silver

Platinum

Answers

Answer 1
Answer: Sodium is an earth-metal (group one), sliver and platinum are d-block metals.... Thus silicon is the metalloid and that is true because it looks like a metal being shiny blue-gray but it exhibit non-metal characteristics, except the fact that it can conduct electricity in a heated state.
Answer 2
Answer: The group of metalliods in the periodic table include: antimony, arsenic, boron, silicon, germanium, polonium all display semi-metal properties. So the answer would be Silicon.

Related Questions

Which substance can not be decomposed by a chemical change?A. Ammonia B. Copper C. Propanol D. Water (P.s, tysm )
How does the reaction affect oxygen atoms?
Why does a leak in a car tire (at constant temperature) decrease the pressure of the tire?A) It removes kinetic energy from the system.B) The number of molecules decreases.C) The temperature decreases.D) The volume decreases.
Calculate the number of moles 3.16 g of KMnO4 32.33 g of K2CrO4 100 g of KHCO3
Carbon-13 is an isotope of carbon. The atomic number of carbon is 6. How many neutrons does carbon-13 have?

Which type of bond will form between two chlorine atoms?

Answers

The link between the same atom is always non-polar Covalent.Is Covalent because there is no possibility of an atom donating electrons to the other, since they are equal and need the same number of electrons, and is why the formal charge non-polar (electronegativity) of two atoms is equal. When there is no difference of formal charges (dipole moment) between the atoms, the connection is always apolar.

hope this helps!

What color represents the highest elevation

Answers

The Color Red Is What People To Represent High Elevation From: 2,000-2,400 m
red is my answer hope I helped you on this :-D :-D :-D

A sample of gas has increased in temperature from 20° Celsius to 22° Celsius. Which of the following happens as the temperature of the gas goes up? The gas undergoes a phase change.
The velocity of the gas particles decreases.
The kinetic energy of the particles increases.
An exothermic reaction is more likely to occur.

Answers

The correct answer for this question is the statement 'the kinetic energy of the particles increases'. As the temperature of gas goes up, the kinetic energy of the particles increases because their velocities increase. This is because particles get excited and hit each other more - leading to increase in kinetic energy.

Answer: The kinetic energy of the particles increases.

Explanation:

Average kinetic energy is defined as the average of the kinetic energies of all the particles present in a system. It is determined by the equation:

K=(3RT)/(2)

From above, it is visible that kinetic energy is directly related to the temperature of the system. So, if temperature is increased, average kinetic energy of the system also increases.

Also the velocity of the particles also increase as K.E=(1)/(2)* mv^2.

What is the total number of moles of oxygen atoms present in 1 mole of mg(c1o3)2

Answers

Answer: There are 6 mole of oxygen present in 1 mole of Mg(ClO_(3))_(2).

Explanation:

The given formula of compound is Mg(ClO_(3))_(2). In this compound, there are 1 mole of magnesium, 2 mole of chlorine and 3 * 2 = 6 mole of oxygen atom.

Therefore, we can conclude that the total number of moles of oxygen atoms present in 1 mole of Mg(ClO_(3))_(2) is 6 mole.
3.)What is the total number of moles of oxygen atoms present in one mole of Mg(ClO3)2? 5,2,3,or 6? 

Thats the question right? the answer is 6

Formula for sulfur tetrafluoride

Answers

The answer is SFl4 tetra means four

What is the source of fuel that is most widely used today?a. Coal
b. Crude oil
c. Natural gas
d. Nuclear energy

Answers

The source of fuel that is most widely used today is Natural gas. The answer is letter C. The rest of the choices do not answer the question above,
Other Questions
Which of the following compounds does NOT contain molecules?a. H2 b. NaCl c. CO2 d. H2O
Which foods contain acids? Check all that apply:a.) limes b.) sourdough bread c.) water d.) sugar e.) honey f.) milk g.) lemons h.) tomatoes
Which of the following measurements has three significant figures?A. 5100 mB. 0.005 mC. 0.510D. 0.051
The bicycle is said to be the most energy-efficient means of transportation. Where does the energy that drives it come from?