Covalent & lonic Bonds

#8th grade finals

what two types of atoms make a covalent?

2 nonmetals

How are covalent bonds explained?

when the atom shares an electron with another atom

in chemical compound, covalent bonds form when….

Pairs of electrons are shared between two nonmetal atoms

is a hydrogen considered a metal or a non-metal?

Non-metal

What would you name this molecule?

H20

what is a valence electron?

electron on the outermost shell

what kind of bond is formed with a non-metal + non-metal?

Covalent Bond

what kind of bond is formed with a metal +non-metal?

ionic bond

what is an ionic bond?

when ions of different charges are attracted to each other

if an atom loses an electron is has a…..

Positive charge, +

if an atom gains an electron it has a…

Negative charge, -

what type of bond in found in NaCi (sodium chloride)?

Ionic bond

what is the definition of an atom?

the smallest part of the element that maintains properties of the element

the octet rule stats that an atom will gain, lose or share electrons in order to have____ valence electrons

8 electrons

A positive ion is also known as a _______?

Cation

a negative ion is also known as an______?

anion

Cation?

lose electrons

anions?

Gain Electrons

what type of bond forms between a metal and a nonmetal?

ionic bonds

what type of bond is formed between hydrogen and oxygen in order to make water?

covalent bond

CaO?

Ionic

Rb₂S

Ionic

PL₃

convalent

SO₂

convalent

MgBr₂

ionic

H₂O

Convalent

NaCI

ionic

k₂o

ionic

Metals are on the _______ side of the periodic table?

left

Nonmetals are on the_______ side of the periodic table?

Right

K2o

Ionic

CuCI2

Ionic

O2

convalent

fe203

Ionic

Bao

Ionic

HCI

convalent

What does the slope on a distances Vs. time graph tell you? What does the slope on a velocity Vs. time graph Tell you?

Distances vs time: speed

Velocity vs time: acceleration

An Rv travels 45 km east and stays the night. The next day is continues traveling 110 km east. What is the displacement over the two days for the RV? What is the distances?

Displacement: 155 km east

Distance: 155 kma

a car is driven 215 km west and then 85 km south. What is the distances traveled and displacement of the car?

Distance: 300 km, Displacement: 231.2 km southwest

A car travels north for 240 mi in 3 hrs. What is the car’s velocity?

Velocity: 80 mi/hr north

Use one of Newtons laws for each scenario to explain what happens to each of the following situations:

A. Explain why a skateboarder eventually always slops.

B. Explain why objects with greater masses(like a bowling ball). Take more forces to accelerate them than objects with small masses (like baseballs.)

C.explain why when Mrs. Joyner shoot’s, her husband has to stand behind her and hold her solders when she pulls the trigger.

A. The skateboarder eventually stops due to frictional forces acting against the motion, as per Newton's first law.

B. Objects with greater mass require more force to achieve the same acceleration, as outlined by Newton's second law (F=ma).

C. Mrs. Joyner experiences a recoil force when firing, and her husband supports her to counteract this reaction force, demonstrating Newton’s third law.

A 15.5 kg box is pushed across the lunch table. The acceleration of the box is 24.2 m/s^2. What was the net force applied to the box

Net force: 374.1 N

A beach ball is rolling in a straight line towards you at a speed of 9 m/sec. Its momentum is 3 kg.m/sec. What is the mass of the beach ball?

The mass of the beach ball can be determined using the formula for momentum (p = mv), which rearranges to m = p/v. Therefore, the mass is 0.333 kg.

Write out the energy