Octavo Science SP-IIT Trimestral

The correct expression of 25800000 in scientific notation is__________________

Observe the following numbers a. 0.0000340 b. 234.010 c. 234 b. 2.00 c. 345988 d. 0.01030 The numbers with three significant figures is________________

Solve the following operation and choose the option with correct answer according to the significant figures rules 25.621 cm + 148.2 cm + 894.1 cm = The option with the correct answer is________________

Solve the following operation and choose the option with correct answer according to the significant figures rules 789.2 x 35 = The option with the correct answer is ________________________

The correct expression of 9.23 x 10^-5 in scientific notation is _____________

Color State of matter Shape Lenght Mass Magnetism Volume Texture Density Are:

The average kinetic energy of a system is known as:

Read the following question abstract A student is working in the lab with 30ml of HYDROCHLORIC ACID and 2 grams of COPPER SULFATE. He must wear the safety google to prevent any injuries. The data in the text above refer to the following (respectively)

The properties that do not depend on the amount of matter, such as melting point are known as______

Which of the following is a physical change?

The physical state of copper at 25 C (room temperature) is_________________

The most abundant state of matter in the universe is known as_____________

Which of the following properties defines a liquid?

Read the following information I. Sublimation II. melting III condensation IV freezing V evaporation Two examples of chemical changes that are endothermic are_______________________

Read the following information i. Sublimation II. melting III. condensation IV. freezing V. evaporation Two examples of chemical that are endothermic are______________

A chemical equation resembles the behavior of reactants and products, in which the atoms involved are the same type and amount in both sides. This fact is an example of the _____________

Which of the following is an example of a homogeneous mixture?

An example of a heterogeneous mixture is

Mayonnaise, ketchup and peanut butter are examples of ________________

The difference between a solution and a suspension is that _________________

Compounds are pure substances that by definition consist of ___________________

The state of matter achieved at an absolute zero based on the Kelvin temperature scale is known as

Which scientist's experiment was crucial for the work that Thomson performed to state that atoms where composed of parts and that one of them was electron?

The scientist that proposed the Atomic Theory, which explains different aspects about the atom and its properties is known as ______________

Was a New Zealand chemist who has become known as the father of nuclear physics. In 1911 he was the first to discover that atoms have a small charged nucleus surrounded by largely empty space and are circled by tiny electrons. He is also credited with the discovery of the proton in 1919 and hypothesized the existence of the neutron. He was awarded the Nobel Prized in Chemistry in 1908 for his investigation into the disintegration of the elements and the chemistry of radioactive substances. The previous information refers to:

Write the chemical name of the following chemical symbols a. Si [blank_start]Silicon[blank_end] b. Na [blank_start]Sodium[blank_end] C. Mn [blank_start]Manganese[blank_end] D. Cr [blank_start]Chromium[blank_end] E. Hh [blank_start]Mercury[blank_end]

Write the chemical symbol of the following chemical names a) Aluminum [blank_start]Al[blank_end] b) Radium [blank_start]Ra[blank_end] c) Silver [blank_start]Ag[blank_end] d) Copper [blank_start]Cu[blank_end]

Classify elements into metals, nonmetal and metalloids a) Polonium [blank_start]metalloid[blank_end] b) Tin [blank_start]Metal[blank_end] c) Tellurium [blank_start]Metalloid[blank_end] d) Cobalt [blank_start]Metal[blank_end] e) Fluorine [blank_start]Nonmetal[blank_end]

Which is the valance electrons of the following elements a) Strontium [blank_start]2[blank_end] b) Iodine [blank_start]7[blank_end] c) Lead [blank_start]4[blank_end] d) Rubidium [blank_start]1[blank_end] c) Xenon [blank_start]8[blank_end]

What are the names in English of the following families a) #2 [blank_start]Alkaline Earth Metals[blank_end] b) #8 [blank_start]Nobel Gases[blank_end] c) #7 [blank_start]Halogens[blank_end] d) #6 [blank_start]Oxygen Family[blank_end] e) #1 [blank_start]Alkali Metals[blank_end]

What is the chemical name of the elements located in. a) Group 12, period 4 [blank_start]Cadmium (Cd)[blank_end] b) Family 6, period 8 [blank_start]Sulfur (S)[blank_end] c) Halogens, period 5 [blank_start]Iodine (I)[blank_end] d) Period 3, group 11 [blank_start]Cooper (Cu)[blank_end] e) Actinides, 5th element [blank_start]Plutonium (Pu)[blank_end] f) Alkali metals, period 3 [blank_start]Sodium (Na)[blank_end] g) Boron family, period 3 [blank_start]Aluminum (Al)[blank_end] h) Period 5, group 11 [blank_start]Gold (Au)[blank_end] I) Lanthanides, element 2 [blank_start]Pr[blank_end] j) Period 2, noble gases [blank_start]Neon (Ne)[blank_end]

Write the oxidation number of the following elements a) Barium [blank_start]2+[blank_end] b) Bismuth [blank_start]3+[blank_end] c) Aluminum [blank_start]3+[blank_end] d) Chlorine [blank_start]1-[blank_end] e) Beryllium [blank_start]2+[blank_end]