Which example describe biotic and abiotic factors interacting with the environment?

a

oxygen circulating in the atmosphere

b

sunlight shining through a window

c

a valley filling up with rain water

d

dolphins communicating with each other

Which of the following pairs of elements are likely to form ionic compounds? Check all that apply. Check all that apply. magnesium and chlorine sodium and potassium nitrogen and iodine chlorine and bromine helium and oxygen potassium and sulfur

Which of the following aqueous salt solutions would you expect to be neutral, e. pH=7. A) NaCN (ag) B) NH4Br (aq) C) NaCN (aq) D) KBr (aq) E) Ca (NO2) 2 (aq)

Is NaF an acid, base or salt?

1s22s22p63s33p4 is the electron configuration of?

Two different gases are stored in separate closed containers. If both gases have a temperature of 50°C, which statement is true? A. The thermal energies of gas molecules in the two containers are unrelated. B.

If you get pregnant in Dec how long will it take for u to get to second trimester

Name the following compound HClO

Aluminum and Oxygen gas will react to form Aluminum Oxide (Al2O3). When the equation is balanced, How many moles of Al2O3 are formed when a mixture of 0.36 moles Al is ignited? a. 0.12 b. 0.18 c. 0.28 d. 0.46

Which state of the West produces the widest varieties of fruits, vegetables, and nuts? A) California B) Colorado C) Wyoming D) Alaska

A chemical engineer for a fertilizer company is determining the most efficient way to produce ammonia. the engineer carries out the haber reaction under four different conditions.