Science and Technology

Due February 16

This homework has two parts:
Part 1: 
Go to www.edmodo.com and create an account. As username you will use the following format: firstnamelastname123 (the last three digits of your ID student number)
As a password you will type 1stperiod if you science class at first period, 2ndperiod if your class is at second period and so on. For instance my name is Juan Correa and my id number is 121283; my Username would be juancorrea283.
Once you create your account join to the class group using one of these this codes:
First Period 59uxb6

Third Period tqwfrf
Fourth Period 2xq26t
Part 2
Answer the following questions in your copybook

Explain how technology depends on science

Research any invention by Leonardo Da Vinci. Write a short report explaining how science and technology were important for this invention.
Ok.

What is Science

Physical Science Homework Due February 14, 2017

For this homework you need the following supplies:

1. Scissors

2. Glue

3. Yarn

4. color pencils

What is Science by Divanny Correa on Scribd

Naming Binary Compounds

Binary Ionic Compounds (Type I)

1. The cation (positively charged ion; Na^+, Al³⁺) is always named first and the anion (negatively charged ion; Cl^-, O^2-) second.
2. A monatomic (meaning one-atom) cation takes its name from the name of the element.  For example, Na⁺ is called sodium in the names of compounds containing this ion.
3. A monatomic anion is named by taking the root of the element name and adding -ide.  Thus, the Cl^- ion is called chloride, the S^2- ion is called sulfide, and the O^2- ion is called oxide.

Some common monatomic cations and anions are shown below

Cation	Name	Cation	Name		Anion	Name	Anion	Name
H+	Hydrogen	Li+	Lithium		H-	Hydride	F-	Fluoride
Na+	Sodium	K+	Potassium		Cl-	Chloride	Br-	Bromide
Cs+	Cesium	Be2+	Beryllium		I-	Iodide	O2-	Oxide
Mg2+	Magnesium	Ca2+	Calcium		S2-	Sulfide	Se2-	Selenide
Ba2+	Barium	Al3+	Aluminum		N3-	Nitride	P3-	Phosphide
Zn2+	Zinc	Ag+	Silver		As3-	Arsenide	C4-	Carbide

Give correct names for these Type I binary compounds

KCl	MgO
K2O	AlCl3
CaO	BaS
MgCl2	Al2S3
NaH	SrF2
ZnS	MgI2
RbBr	CaSe
Al2O3	BaBr2
Na3N	CsCl
Ca2C	Mg3P2
KI	CaCl2

Give correct formulas for these Type I binary compounds

calcium iodide	magnesium phosphide
calcium hydride	sodium chloride
magnesium fluoride	barium oxide
cadmium bromide	aluminum arsenide
sodium nitride	calcium sulfide
rubidium oxide	potassium selenide
barium nitride	sodium iodide
lithium chloride	lithium sulfide
silver sulfide	calcium carbide
aluminum nitride	sodium hydride
cesium fluoride	magnesium nitride

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Ionic Bonding

Physical Science - December 7th, 2016 Homework

Ionic Bonding Worksheet-1 by Divanny Korrea on Scribd

Physical Science Homework 11/16/16

The periodic  table

10.                     What is the d block element with the smallest atomic number?

11. __________ What is the metalloid with 7 valence electrons?

12. __________ What is the alkaline earth element with the smallest atomic weight?

13. __________ What is the actinide with the smallest atomic number?

14. __________ What is the synthetic actinide with the smallest atomic weight?

15. __________ What is the noble gas with two valence electrons?

16. __________ What is the halogen with the smallest atomic weight?

17. __________ What is the chalcogen metalloid?

18. __________ What is the transition element with the smallest atomic weight?

19. __________ What is the third period element with 4 valence electrons?

20. __________ What is the fourth period element with 5 valence electrons?

21. __________ What is the second period element with 8 valence electrons?

Atomic theories

Physical Science Homework

Physical Properties

Physical Science Homework, Tuesday 4 Due
Read the following explanation and fill in the chart.