What does Earth's rotation on its axis cause?

the tides

night and day

passing of years

phases of the moon

In what type of organism and what location in that organism does photosynthesis generally occur?

Zinc + hydrochloric acid

Is weak base drug absorbed in Stomach?

Describe how the atoms in Calcium Chloride obey the octet rule.

What fact do scientists believe provides evidence for the big bang theory? a. all comets follow elliptical orbits. b. most extra-solar planets are gas giants. c. all stars feature nuclear fusion in their core. d.

If an amino acid contained a hydrocarbon (a group of multiple carbons and hydrogens linked together) as its side group, in which of the following categories could it be appropriately designated? A) hydrophilicB) polar C) nonpolarD) basicE) acidic

Which atom can bond with each other to form chains, rings or networks? (1) carbon atoms (2) hydrogen atoms (3) oxygen atoms (4) nitrogen atoms

How many electrons in an atom can have each of the following quantum number or sublevel designations? (a) 4p (b) n = 3, l = 1, m1 = + 1 (c) n = 5, l = 3

The ksp of copper (ii) carbonate, cuco3, is 1.4 * 10-10. calculate the solubility of this compound in g/l.

A 1.0857 gram pure sample of a compound containing only carbon, hydrogen, and oxygen was burned in excess oxygen gas. 2.190 g of carbon dioxide and 0.930g of water were produced. Find the empirical formula of the compound.