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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. 200 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. 143 views
Give the answer to the correct significant digit 0.71+ 96.6 + 2.003 + 0.0054 +2.1 =
1. 1 answer
2. 133 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. 163 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. 143 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. 151 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. 166 views
23.780 g of acetaldehyde (CH3CHO) reacts completely with oxygen to produce acetic acid (HC2H3O2) using manganese (II) acaetate
1. 1 answer
2. 130 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. 181 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. 140 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. 159 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. 213 views
Which of the following are physical properties?Rusting Flammability Mass Density
1. 1 answer
2. 155 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. 276 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. 212 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. 138 views
Educational philosophiesEvolve Interact Diminish Regress
1. 1 answer
2. 134 views
Different educational philosophies is a sign of…… within an educational setting.Dysfunction Strength Experience Weakness
1. 1 answer
2. 156 views
Your teaching philosophy should be aligned with your…Understanding and imagination Knowledge and strengths Interpretation and
1. 1 answer
2. 133 views
Effective teachers and people of good character often have ……. educational philosophies.Same Differing Linked Common
1. 1 answer
2. 122 views
Educational philosophies should be like lesson plan ……Aim Topic Objective Structure
1. 1 answer
2. 141 views
Teaching from authentic self makes teachingDifficult Confusing Complicated Effortless
1. 1 answer
2. 118 views
Epistemology is concerned withThe nature of reality The nature of values The nature of knowledge The nature of beliefs
1. 1 answer
2. 189 views
Idealists believe that …….. are the true reality.Beliefs Ideas Values Principles
1. 1 answer
2. 121 views
The fundamental principle of Idealism maintain that ……. Is the source of all knowledge.Man Wisdom God Philosophy
1. 1 answer
2. 155 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. 153 views
Some exponents of Idealism arePlato, Kant, Hegel Dewey, William James, S, Kilpatrick Rousseau, Comenius, Spencer Aristotle, John
1. 1 answer
2. 122 views
Pragmatism puts emphasis upon ……. of life.Adaptation Practicalities Understanding Limitations
1. 1 answer
2. 90 views
One fundamental principle of Pragmatism is that truthAbsolute Changes Fixed Ideal
1. 1 answer
2. 116 views
One of the aims of Pragmatism isContinuous growth Intellectual growth Physical growth Emotional growth
1. 1 answer
2. 151 views
Some exponents of pragmatism arePlato, Kant, Hegel Dewey, William James, S, Kilpatrick Rousseau, Comenius, Spencer Aristotle,
1. 1 answer
2. 122 views
Naturalism believes that …… and …… are identical.Reality and nature Reality and values Reality and principles Reality
1. 1 answer
2. 178 views
The fundamental principle of naturalism is that education should be based on the child’s …….Development Psychology Growth
1. 1 answer
2. 103 views
Educational aims of naturalismSelf-expression Self-preservation Struggle for existence All of the above
1. 1 answer
2. 111 views
Exponents for naturalism arePlato. Kant, Hegel Dewey, William James, S. Kilpatrick Rousseau, Cornenius, Spencer Aristotle, John
1. 1 answer
2. 132 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. 190 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. 140 views
The …… believed that a person becomes wise byknowledge and understanding.Ancient Romans Ancient Italians Ancient Egyptians
1. 0 answers
2. 172 views
1. Philosophy is one of the oldest provinces of knowledge to attain………Power Integrity Wisdom Love
1. 1 answer
2. 108 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. 206 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. 213 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. 169 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. 198 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. 138 views
The intermolecular force between the molecules of gases can be described as Blank 1
1. 1 answer
2. 107 views
Chicken soup is an example of __________________________Heterogenous Mixture Homogenous mixture Chemical change Physical change
1. 1 answer
2. 120 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. 260 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. 118 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. 181 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. 141 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. 136 views
23.780g of acetaldehyde (CH3CHO) reacts completely with oxygen to produceacetic acid (HC2H3O2) using manganese (II)acaetate
1. 1 answer
2. 173 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. 173 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. 178 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. 140 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. 165 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. 193 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. 213 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. 146 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. 205 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. 202 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. 144 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. 112 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. 153 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. 167 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. 186 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. 232 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. 153 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. 287 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. 174 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. 161 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. 143 views
23.780 g of acetaldehyde (CH3CHO) reacts completely with oxygen to produce acetic acid (HC2H3O2) using manganese (II) acetate
1. 1 answer
2. 230 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. 186 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. 181 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. 261 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. 162 views
Which of the following are physical properties?Mass Density Flammability Rusting
1. 1 answer
2. 112 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. 227 views

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