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Questions (179)

Sasko bread is made using yeast. Yeast is a living organism that converts the sugar in the bread mixture known as a dough into
1. 1 answer
2. 216 views
The internal energy ∆E of a system is -230 kJ. If the system released 300 kJ, How much work was done in the system? Based on
1. 1 answer
2. 153 views
Give the answer to the correct significant digit 0.71+ 96.6 + 2.003 + 0.0054 +2.1 =
1. 1 answer
2. 137 views
On aerosol deodorant cans, the symbol of flammable is clearly shown. What happens when the can is exposed to high temperature?Th
1. 1 answer
2. 171 views
Platinum has a density of 21.40 g/c m cubed. What is the mass of 0.0059 L of this metal in kg?
1. 1 answer
2. 151 views
In the combustion of carbon to form methane, the change in enthalpy is -652 kJC(g) + 4H(g) ® CH4(g) DH = −652 kJ What will be
1. 1 answer
2. 162 views
An unknown substance used in the Agricultural sector has the formula CN3H5 .Calculate the percent by mass of nitrogen in the
1. 1 answer
2. 176 views
23.780 g of acetaldehyde (CH3CHO) reacts completely with oxygen to produce acetic acid (HC2H3O2) using manganese (II) acaetate
1. 1 answer
2. 139 views
Give the answer of the problem to the correct number of significant digit fraction numerator 8.91 space X space 0.0271 space X
1. 1 answer
2. 190 views
Give the answer of the problem to the correct number of significant digit fraction numerator 8.91 space X space 0.0271 space X
1. 1 answer
2. 155 views
The airbag is the car works using the Ideal gas law. When an airbag is inflated, the nitrogen gas has a pressure of 23.011 atm,
1. 1 answer
2. 166 views
A student drops an object weighing 10.89 g into a 100.00 mL of ethanol in a measuring cylinder. An unknown volume of ethanols
1. 1 answer
2. 227 views
Which of the following are physical properties?Rusting Flammability Mass Density
1. 1 answer
2. 157 views
If the theoritical yield of PbCl2 is 16.547 g from the reaction of 7.000 g of NaCl with 50.400 g of Pb(NO3)2. Calculate the %
1. 1 answer
2. 290 views
If the theoritical yield of PbCl2 is 16.547 g from the reaction of 7.000 g of NaCl with 50.400 g of Pb(NO3)2. Calculate the %
1. 1 answer
2. 226 views
Philosophy seeks to integrate the …….. with that of other fields of study to achieve some kind of consistence as well as
1. 13 answers
2. 148 views
Educational philosophiesEvolve Interact Diminish Regress
1. 1 answer
2. 137 views
Different educational philosophies is a sign of…… within an educational setting.Dysfunction Strength Experience Weakness
1. 1 answer
2. 160 views
Your teaching philosophy should be aligned with your…Understanding and imagination Knowledge and strengths Interpretation and
1. 1 answer
2. 138 views
Effective teachers and people of good character often have ……. educational philosophies.Same Differing Linked Common
1. 1 answer
2. 125 views
Educational philosophies should be like lesson plan ……Aim Topic Objective Structure
1. 1 answer
2. 145 views
Teaching from authentic self makes teachingDifficult Confusing Complicated Effortless
1. 1 answer
2. 120 views
Epistemology is concerned withThe nature of reality The nature of values The nature of knowledge The nature of beliefs
1. 1 answer
2. 203 views
Idealists believe that …….. are the true reality.Beliefs Ideas Values Principles
1. 1 answer
2. 130 views
The fundamental principle of Idealism maintain that ……. Is the source of all knowledge.Man Wisdom God Philosophy
1. 1 answer
2. 162 views
One of the educational aims of Idealism is toDevelop the mind Develop the soul Develop the body Develop the whole being
1. 1 answer
2. 165 views
Some exponents of Idealism arePlato, Kant, Hegel Dewey, William James, S, Kilpatrick Rousseau, Comenius, Spencer Aristotle, John
1. 1 answer
2. 138 views
Pragmatism puts emphasis upon ……. of life.Adaptation Practicalities Understanding Limitations
1. 1 answer
2. 91 views
One fundamental principle of Pragmatism is that truthAbsolute Changes Fixed Ideal
1. 1 answer
2. 121 views
One of the aims of Pragmatism isContinuous growth Intellectual growth Physical growth Emotional growth
1. 1 answer
2. 159 views
Some exponents of pragmatism arePlato, Kant, Hegel Dewey, William James, S, Kilpatrick Rousseau, Comenius, Spencer Aristotle,
1. 1 answer
2. 134 views
Naturalism believes that …… and …… are identical.Reality and nature Reality and values Reality and principles Reality
1. 1 answer
2. 189 views
The fundamental principle of naturalism is that education should be based on the child’s …….Development Psychology Growth
1. 1 answer
2. 110 views
Educational aims of naturalismSelf-expression Self-preservation Struggle for existence All of the above
1. 1 answer
2. 115 views
Exponents for naturalism arePlato. Kant, Hegel Dewey, William James, S. Kilpatrick Rousseau, Cornenius, Spencer Aristotle, John
1. 1 answer
2. 142 views
Realism is the theory that holds …… is the real.Existence of objects Existence of humans Existence of beliefs Existence of
1. 1 answer
2. 203 views
Philosophy seeks to integrate the …….. with that of other fields of study to achieve some kind of consistence as well as
1. 0 answers
2. 154 views
The …… believed that a person becomes wise byknowledge and understanding.Ancient Romans Ancient Italians Ancient Egyptians
1. 0 answers
2. 181 views
1. Philosophy is one of the oldest provinces of knowledge to attain………Power Integrity Wisdom Love
1. 1 answer
2. 114 views
James mistakenly mixed hexane with dichloromethane and water. If the density of hexane is 661 Kg/m3, the density of
1. 1 answer
2. 216 views
The internal energy ∆E of a system is -230 kJ. If the system released 300 kJ, How much work was done in the system? Based on
1. 1 answer
2. 226 views
An unknown compound contains 13.04% of hydrogen,34.78% of oxygen, and 52.17% of carbon by mass. Determine the empirical formula
1. 1 answer
2. 178 views
Sasko bread is made using yeast. Yeast is a living organism that converts the sugars in the bread mixture known as a dough into
1. 1 answer
2. 214 views
How much of heat is needed to warm 500 g of water from 25 °C near to its boiling point of 99°C? The specific heat of capacity
1. 1 answer
2. 147 views
The intermolecular force between the molecules of gases can be described as Blank 1
1. 1 answer
2. 113 views
Chicken soup is an example of __________________________Heterogenous Mixture Homogenous mixture Chemical change Physical change
1. 1 answer
2. 135 views
SoniaJean Reading 1 Reading 2 Reading 3 Reading 1 Reading 2 Reading 3 7.90 7.88 7.87 5.78 5.77 5.79 Sonia and Jeans weighed the
1. 1 answer
2. 271 views
Calculate the root mean square velocity of the oxygen gas (O2) molecules at 77 °C. (R =8.314 Kg.m²/S².mol.K). (atomic mass of
1. 1 answer
2. 125 views
A student drops an object weighing 10.89 g into a 100.00 mL of ethanol in a measuring cylinder. An unknown volume of ethanol
1. 1 answer
2. 189 views
Chlorine can be pressurized and cooled to change into a liquid for storage. When liquid chlorine is released, it quickly turns
1. 1 answer
2. 153 views
Chlorine can be pressurized and cooled to change into a liquid for storage. When liquid chlorine is released, it quickly turns
1. 1 answer
2. 147 views
23.780g of acetaldehyde (CH3CHO) reacts completely with oxygen to produceacetic acid (HC2H3O2) using manganese (II)acaetate
1. 1 answer
2. 187 views
The table below shows some values for standard enthalpy changes of combustion. Use these values in the table below to calculate
1. 1 answer
2. 189 views
The table below shows some values for standard enthalpy changes of combustion. Use these values in the table below to calculate
1. 1 answer
2. 187 views
When 15.0 g of sodium nitrate (NaNO3) was dissolved in water in a bomb calorimeter, the temperature reduced from 25.00 °C to
1. 1 answer
2. 151 views
Platinum has a density of 21.40 g/cm3. What is the mass of 0.0059 L of this metal in kg?126.26 kg 126.3 kg 0.12626 kg 0.13 kg
1. 1 answer
2. 173 views
A student performed an analysis of a sample for its calcium content and got the following results: 14.91%, 14.89%, 14.88%, and
1. 1 answer
2. 203 views
An unknown compound of mass 10.7696 g containing carbon, hydrogen and oxygen was combusted in oxygen producing CO2 (29.5747 g)
1. 1 answer
2. 226 views
On aerosol deodorant cans, the symbol of flammable is clearly shown. What happens when the can is exposed to high temperature?It
1. 1 answer
2. 155 views
When a 7.50 g sample of solid NaOH dissolves in100.00 g of water in a coffee-cup calorimeter, the temperature rises from 21.6°C
1. 1 answer
2. 214 views
The pressure of a sample of an inert gas reduced significantly from 100 kPa to 30kPa. The temperature increases from 27degreeC
1. 0 answers
2. 209 views
The lungs expand when we breathe in, resulting in an increase in the volume and a decrease in pressure. When we breathe out, the
1. 1 answer
2. 151 views
A student did a research on weight and mass and reported the findings shown below. Using your knowledge of PAC 110, which
1. 2 answers
2. 113 views
The speed at which gas molecules move can be described as Blank 1 and when the gas molecules collide at constant temperature the
1. 1 answer
2. 160 views
In the combustion of carbon to form methane, the change in enthalpy is -652 kJC(g) + 4H(g) rightwards arrowCH4 (g) incrementH =
1. 1 answer
2. 191 views
Deep-sea divers commonly use oxygen blended with an inert gas. The partial pressure of oxygen changes according to the needed
1. 1 answer
2. 192 views
Lead (II) chloride (PbCl2) are produced from the reaction of 7.000 g of NaCl with 50.400 g of Pb(NO3)2. What is the limiting
1. 1 answer
2. 252 views
An elephant weighs 6.818 Kg on earth, what is the weight in Jupiter if the gravity is 24.9 N/Kg to the correct significant
1. 1 answer
2. 154 views
How many grams of lead (II) chloride (PbCl2) are produced from the reaction of 7.000 g of NaCl and 50.400 g of
1. 15 answers
2. 306 views
A special gas mixture is used in bacterial growth chambers which contains 5.00% by mass of CO2 and 95.0% O2. If the mole
1. 1 answer
2. 181 views
The airbag is the car works using the Ideal gas law. When an airbag is inflated, the nitrogen gas has a pressure of 23.011 atm,
1. 1 answer
2. 171 views
Calculate the change in enthalpy, ΔH in joules (J) for the reaction below carried out at constant pressure of 11.1 atm at a
1. 1 answer
2. 150 views
23.780 g of acetaldehyde (CH3CHO) reacts completely with oxygen to produce acetic acid (HC2H3O2) using manganese (II) acetate
1. 1 answer
2. 244 views
A water geyser works by heating cold water. The hot water is then released through an outlet nozzle. If the system and
1. 1 answer
2. 197 views
A metal carbonate, XCO3 of mass 2.012 g was heated resulting in the formation of XO, a metal oxide and carbon dioxide with a
1. 1 answer
2. 205 views
An unknown substance used in the Agricultural sector has the formula CN3H5 .Calculate the percent by mass of nitrogen in the
1. 19 answers
2. 268 views
Calculate the enthalpy change for the reaction: P4O6(s)+ 2O2(g) → P4H10(s)Given the following enthalpies of reaction: P4 (s) +
1. 1 answer
2. 167 views
Which of the following are physical properties?Mass Density Flammability Rusting
1. 1 answer
2. 114 views
If the theoritical yield of PbCl2 is 16.547 g from the reaction of 7.000 g of NaCl with 50.400 g of Pb(NO3)2. Calculate the %
1. 1 answer
2. 238 views

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