August
What elements does H2O contain?
Hydrogen and Oxygen
If an atom has 12 protons and 15 neutrons what is the isotope name?
Magnesium-27
What is the name for HF?
Hydrofluoric Acid
5.68 x 10^7 cg
56,800,000
(6.216 x 10^20 dm)
(8.007 x 10^22 dm)
7.763 x 10^-3 dm
What elements are in NaCl?
Sodium and Chloride
If an element has 20 protons, 20 electrons, and 20 neutrons what is the atomic number?
20 Atomic number = Number of protons
What is the name for HI?
Hydriodic Acid
3.92 x 10^-5 KL
0.0000392
(3.541 x 10^-17cg)
(5.089 x 10^-19cg)
1.802 x 10^-35cg
How do the properties of a compound compare with the properties of elements?
The element has one element and the compound has two elements.
Neutral atoms have always have an equal number of what two subatomic particles?
Protons and electrons
What is the name of HNO2
Nitrous acid
6.71 x 10^-4mm
0.0000671
(6.83 x 10^2km) (1.42 x 10^18km)
9.6986=9.70 x 10^39 km^2
Whats is Carbon?
The element with atomic number 6.
Neural atoms always have an equal number of what two subatomic particles.
protons and electrons
What is the name of HCH3COO
Acetic acid
2.71 x 10^-8dag
0.0000000271
(7.95 x 10^-16ML) (8.68 x 20 -19ML)
69.006=6.90 x 10^-34ML^2
What is two or more different atoms joined together?
Which about Isotopes is true? a. they have the same number of neutrons b. they have a different atomic number c. they have the same number of protons
What is the name of HCIO
Hypochlorous
3.89 x 10^12daL
3,890, 000,000,000
(7.95 x 10^-16mL) (8.68 x 20^-19mL)
6.90 x 10^-34mL^2