Sirius, the brightest star, is 8.8 light-years from Earth. That means

A) Sirius is not part of the Milky Way.

B) Sirius is closer to Earth than the Sun.

C) we see Sirius as it looked 8.8 years ago.

D) it would take us 8.8 years to reach Sirius.

An organism that has been thriving, has died. Which of the following is NOT a cause of its demise? Question 6 options: appropriate enviornment water food soil

Which metal can be used as a sacrificial electrode to prevent the rusting of an iron pipe? which metal can be used as a sacrificial electrode to prevent the rusting of an iron pipe? cu ag al au?

In any chemical or physical process energy is neither created nor destroyed is a statement of the

If you start with 10.0 grams of lithium hydroxide and an excess of hydrogen bromide, how many grams of lithium bromide will be produced?

If an element is skinny it has

Alka-Seltzer is a solid mixture of two substances, sodium bicarbonate (NaHCO3) and citric acid (H3C6H5O7). The substances react to form water, carbon dioxide (CO2), and Na3C6H5O7.

Four properties of water are listed. 1. It is colorless and odorless in its pure form. 2. It reacts with metals to form metal hydroxide and hydrogen gas. 3. When heated to 100 °C, water evaporates. 4. It decomposes to form hydrogen and oxygen.

Water is A. Acidic B. Basic C. Neutral

What variables affect the acceleration of an object and in what manner do they affect the acceleration?

How do valence electrons relate to the chemical reactions of an element?