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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. 263 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. 175 views
Give the answer to the correct significant digit 0.71+ 96.6 + 2.003 + 0.0054 +2.1 =
1. 1 answer
2. 148 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. 194 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. 163 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. 182 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. 192 views
23.780 g of acetaldehyde (CH3CHO) reacts completely with oxygen to produce acetic acid (HC2H3O2) using manganese (II) acaetate
1. 1 answer
2. 153 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. 212 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. 180 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. 194 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. 243 views
Which of the following are physical properties?Rusting Flammability Mass Density
1. 1 answer
2. 163 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. 318 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. 248 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. 170 views
Educational philosophiesEvolve Interact Diminish Regress
1. 1 answer
2. 146 views
Different educational philosophies is a sign of…… within an educational setting.Dysfunction Strength Experience Weakness
1. 1 answer
2. 167 views
Your teaching philosophy should be aligned with your…Understanding and imagination Knowledge and strengths Interpretation and
1. 1 answer
2. 146 views
Effective teachers and people of good character often have ……. educational philosophies.Same Differing Linked Common
1. 1 answer
2. 131 views
Educational philosophies should be like lesson plan ……Aim Topic Objective Structure
1. 1 answer
2. 152 views
Teaching from authentic self makes teachingDifficult Confusing Complicated Effortless
1. 1 answer
2. 128 views
Epistemology is concerned withThe nature of reality The nature of values The nature of knowledge The nature of beliefs
1. 1 answer
2. 224 views
Idealists believe that …….. are the true reality.Beliefs Ideas Values Principles
1. 1 answer
2. 145 views
The fundamental principle of Idealism maintain that ……. Is the source of all knowledge.Man Wisdom God Philosophy
1. 1 answer
2. 177 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. 195 views
Some exponents of Idealism arePlato, Kant, Hegel Dewey, William James, S, Kilpatrick Rousseau, Comenius, Spencer Aristotle, John
1. 1 answer
2. 167 views
Pragmatism puts emphasis upon ……. of life.Adaptation Practicalities Understanding Limitations
1. 1 answer
2. 96 views
One fundamental principle of Pragmatism is that truthAbsolute Changes Fixed Ideal
1. 1 answer
2. 129 views
One of the aims of Pragmatism isContinuous growth Intellectual growth Physical growth Emotional growth
1. 1 answer
2. 175 views
Some exponents of pragmatism arePlato, Kant, Hegel Dewey, William James, S, Kilpatrick Rousseau, Comenius, Spencer Aristotle,
1. 1 answer
2. 153 views
Naturalism believes that …… and …… are identical.Reality and nature Reality and values Reality and principles Reality
1. 1 answer
2. 215 views
The fundamental principle of naturalism is that education should be based on the child’s …….Development Psychology Growth
1. 1 answer
2. 116 views
Educational aims of naturalismSelf-expression Self-preservation Struggle for existence All of the above
1. 1 answer
2. 125 views
Exponents for naturalism arePlato. Kant, Hegel Dewey, William James, S. Kilpatrick Rousseau, Cornenius, Spencer Aristotle, John
1. 1 answer
2. 150 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. 223 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. 176 views
The …… believed that a person becomes wise byknowledge and understanding.Ancient Romans Ancient Italians Ancient Egyptians
1. 0 answers
2. 197 views
1. Philosophy is one of the oldest provinces of knowledge to attain………Power Integrity Wisdom Love
1. 1 answer
2. 119 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. 238 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. 249 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. 198 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. 260 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. 160 views
The intermolecular force between the molecules of gases can be described as Blank 1
1. 1 answer
2. 120 views
Chicken soup is an example of __________________________Heterogenous Mixture Homogenous mixture Chemical change Physical change
1. 1 answer
2. 151 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. 307 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. 140 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. 209 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. 172 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. 160 views
23.780g of acetaldehyde (CH3CHO) reacts completely with oxygen to produceacetic acid (HC2H3O2) using manganese (II)acaetate
1. 1 answer
2. 215 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. 214 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. 208 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. 171 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. 182 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. 224 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. 250 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. 185 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. 233 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. 230 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. 165 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. 119 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. 175 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. 208 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. 203 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. 275 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. 161 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. 344 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. 198 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. 194 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. 169 views
23.780 g of acetaldehyde (CH3CHO) reacts completely with oxygen to produce acetic acid (HC2H3O2) using manganese (II) acetate
1. 1 answer
2. 262 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. 222 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. 223 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. 296 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. 177 views
Which of the following are physical properties?Mass Density Flammability Rusting
1. 1 answer
2. 121 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. 261 views

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