5 m is equal to:

500 mm

5,000 mm

50 cm

5,000 cm

All matter can be classified by their physical properties. Which substance can be classified as being soluble in water A. sand B. pepper C. iron filings D. salt

An unknown element is shiny and is found to be a good conductor of electricity, what other properties would you predict for it

The concentration of H30 in your swimming pool is 4 x 10^-5 M. What is the pH of your pool? O a.-4.4 Ob. 4.4 Oc. 0.00004 O d.-0.6 O e. 0.6

How many atoms are in this formula? 4 O2 A 2 B 4 C 6 D 8

How many atoms are in a sample of chromium with a mass of 13 grams?

Write the isotope symbol for two isotopes of the same element. What makes the isotopes different? How are they similar?

According to the periodic table, which element has an atomic number of 40? a. u b. ca c. zr d. np

3. Which word best fits with the Earth's day and night cycle a. Revolution b. Rotation C Orbit d. Axis

What causes temperatures in the summer to be higher than temperatures in the winter? A. The greenhouse effect, which raises temperatures on Earth, takes place during the summer months only. B.

What naturally forms an anion?