Express 0.00000618 in Scientific Notation:

Express the answer in the correct number of Significant Figures:

69 m x 702 m = ______________ m²

The most important piece of safety equipment for you to wear every time you work with chemicals or fire is/are:

Calculate the volume of 350.0 g of antifreeze that has a density of 1.21 g/mL:

Which of the following is an example of a fission reaction?

What is the correct name of the compound Fe₃(PO₄)₂?

Which of the following is the correct formula for a compound formed from Mg and P?

The nucleus of an atom contains:

When water boils to become steam, it has undergone which type of change in matter?

_____________ is defined as the amount of matter in an object.

Pure water is an example of a(n):

Burning paper is an example of which type of change in matter?

Solubility is the ability of a substance to dissolve in another. This is an example of which type of property of matter?

An example of a transition metal in period 5 is:

An example of a p-block element is:

Milk is an example of a:

An atom that has 13 protons, 14 neutrons and 10 electrons would have:

An atom with a net positive or negative charge is called a(n):

I-126 and I-127 are examples of:

The mass number of an element that has 12 protons, 13 neutrons and 10 electrons is:

175 Hg²⁺

80

has how many protons, neutrons and electrons?

According to the following successive ionization energy values, which family does this element belong to?

1st: 578 kJ

2nd: 1820 kJ

3rd: 2750 kJ

4th: 11,600 kJ

5th: 14,800 kJ

Which scientist proposed this model of the atom after the discovery of the electron?

The most dangerous and powerful type of radiation is:

Due to greater repulsive forces, elements with atomic numbers greater than 20 need more _________________ to keep the nucleus stable.

The energy carried by EMR that has a wavelength of 4.00 x 10^-5 m and a frequency of 7.50 x 10¹² 1/s is:

The speed of light is equal to 3.00 x 10⁸ m/s. The frequency of red light with a wavelength of 6.50 x 10^-7 m is:

In the photoelectric effect, ________________ are ejected from the surface of a metal when light with a high enough energy shines on it.

Identify the element formed when Pu-244 undergoes alpha decay:

The correct electron configuration of Br is:

The correct Noble Gas Abbreviation of Te is:

Which of the following is a metalloid?

A substance with a pH of 11.0 would be:

Example 1 is incorrect because it violates which rule?

The person whose work led to the modern Periodic Table we use today arranged by increasing atomic number is:

The alkaline earth metal in the 3rd period is:

Which types of orbitals exist in the 3rd energy level (n=3)?

Which of the following is a polar molecule?

Which element has the largest atomic radius?

Which element has the highest electronegativity?

How many electrons would you expect P to gain or lose in order to have a full Octet of valence electrons?

You have a compound that when heated, melts on a hot plate. When dissolved in water, it is a poor conductor of electricity. It is most likely a(n):

The least reactive of all elements are the:

Chemistry is the study of:

Which of the following would be formed by a nonpolar covalent bond?

Which of these would be formed by the transfer of electrons between bonding atoms?

What is the correct formula for tetraphosphorus pentoxide?

Determine the Specific Heat of a substance if 48.0 J of heat was absorbed by a 12.0 g sample as it was heated from 20.0 to 40.0 degrees Celsius:

q = m x C x ΔT

What is the shape and bond angle of the SF₂ molecule?

Your friend drew this Lewis Dot structure of BH₃ and asks you if it is correct and what shape this molecule is. You say:

The coefficients that would go on the lines to balance this equation would be: