Description : What are three sign that chemical change has occurred?
Last Answer : chemical change doesn't apper outside easily as it is change inthe chemical property of the element or the experimentdone,specific methods can only be used to detect the chemicalchange for the substance under observation.
Description : If you built a Solstice bonfire to burn up all the broken useless pieces of the old year, what would throw in it?
Last Answer : I wish Covid and Cancer were the biggest flames you ever saw.
Description : I am broken and apart, all my pieces are in tatters. They lie about unorganized, as if nothing matters. Like humpty dumpty all I want is all my pieces fixed. Yet when you start to help me, your feelings ... I bring anger. To see my original form, you need only look at my chamber. What am I? -Riddles
Last Answer : Jigsaw puzzle
Description : A wire of resistanc e`9Omega` is broken in two parts. The length ratio being `1:2`. The two pieces are connected in parallel. The net resistance will
Last Answer : A wire of resistanc e`9Omega` is broken in two parts. The length ratio being `1:2`. The two pieces are ... 2Omega` B. `3Omega` C. `4Omega` D. `6Omega`
Description : When manipulating the broken egg shell pieces what occured in the area of the crack when two pieces were pulled or pushed apart?
Last Answer : What is the answer ?
Description : Are rocks at Earth's surface are broken down into smaller pieces a part of the rock cycle?
Last Answer : this is a question
Description : The rocks gets broken in pieces due to temperature is called
Last Answer : Ans. Exfoliation
Description : Which of the following is used in welding broken pieces of iron rails and machine parts? (1) Aluminium sulphate (2) Solder (3) Aluminium powder (4) None of the above
Last Answer : (3) Aluminium powder Explanation: Aluminum powder is a highly flammable powder created by grinding aluminum into fine grains of material. In times past, this flammable metal powder was ... of the tools utilized in various applications of pyrotechnics, including the creation of fireworks displays.
Description : Which of the following is used in welding broken pieces of iron rails and parts of machine –
Last Answer : Aluminum Powder
Description : The major constituent of laminate of safety glass, which holds the broken glass, pieces in their places during accident (and thus minimises the danger from flying glass fragments) is (A) Polyvinyl alcohol (B) Polyvinyl acetate (C) Polyvinyl butyral (D) PVC
Last Answer : (C) Polyvinyl butyral
Description : Why are broken glass pieces or cullets added during the manufacture of glass?
Last Answer : Pieces of broken glass are added to increase fusibility and to recycle broken glass pieces.
Description : Rohan had learnt that non-metals on beating with hammer are generally broken into pieces. Which of the following is a non-metal? a) iron nail b)aluminium wire c)copper wire d)piece of coal
Last Answer : d)piece of coal
Last Answer : Aluminium powder
Description : A child accidentally drops a square ceramic tile. It breaks into smaller pieces as shown in Figure P. To avoid a scolding, she plans to compose a mural of broken pieces to gift to her mother. Which figure out of the given options could she make?
Last Answer : C
Description : A student dropped few pieces of marble in dilute hydrochloric acid contained in a test tube. The evolved gas was then passed through lime water. What change would be observed in lime water? Write balanced chemical equation for both the change observed?
Last Answer : Answer. When dilute HCl is added to marble which is calcium carbonate, it forms calcium chloride, water and carbon dioxide. The chemical equation for the reaction is as follows: CaCO3 + 2HCl → CaCl2 + H2O ... reaction between lime water and carbon dioxide is as follows: Ca(OH)2 + CO2 → CaCO3 + H2O
Description : Imagine Johnny, a party clown, is carrying three pieces of gold each piece weighing one kilogram. While taking a walk he comes to a bridge which has a sign posted saying the bridge could hold only a ... the sign and still safely crossed the bridge with all the gold. How did he manage this? -Riddles
Last Answer : Johnny is a clown so he has mastered juggling. When he came to the bridge he juggled the gold, always keeping one piece in the air.
Description : What kinds of evidence can you use to determine if a chemical reaction has occurred?
Last Answer : fizzingcolor change (of course, this exempts artificial coloring)odorformation of precipitateproduction of gasformation of new substance (elemental bonding)
Description : These two chemical elements, named after two world-renowned scientists, were first formed in a thermonuclear explosion which occurred in the South Pacific in 1952. The atomic numbers of these elements are 99 and 100. Their chemical symbols are Es and Fm. Name these elements.
Last Answer : ANSWER: EINSTEINIUM AND FERMIUM
Description : What happens when a chemical bond is formed? (1) energy is always absorbed (2) energy in always released (3) more energy is released than is absorbed (4) energy is neither released nor ... as potential energy. Upon the breaking of these bonds the energy is released thereby creating usable energy.
Last Answer : Silver nitrate solution is kept in brown bottles in laboratory because - (1) it reacts with ordinary white bottles (2) brown bottles stops the passage of light through it (3) brown bottles do not react with it (4) brown bottles react with it
Description : Major change that occurred in the political and constitutional scenario due to French Revolution in Europe -SST 10th
Last Answer : The French Revolution led to the transfer of sovereignty from the monarchy to a body of French citizen.
Description : What was the major change that occurred in the political and constitutional scenario due to the French Revolution in Europe ? -SST 10th
Last Answer : The major change due to the French Revolution in Europe was the transfer of power and sovereignty from the monarchical system to a body of the French citizens.
Description : What was the major change that occurred in the political and constitutional scenario due to French Revolution in Europe? -SST 10th
Last Answer : The major change that occurred in the political and constitutional scenario due to the French Revolution in Europe was the transfer of sovereignty from the monarchy to a body of French citizens.
Description : What change has occurred that will make Rip's life at home different from what was before his long sleep?
Last Answer : Need answer
Description : What important change occurred during Jackson's presidency?
Last Answer : The extension of voting rights to all white males.
Description : What change occurred in the intensity of the light in the field of view when you exchanged the low-power objective for the high-power objective?
Last Answer : It declined
Description : What change occurred in the shape of horse from hyracotherium to equus?
Last Answer : What changes occurred in the size of the horse from Hyracotherium to Equus? 5. Describe the overall changes in foot length, number of toes, and size of toes in the horse over time. that had them these horses would have had a greater chance of surviving that horses not adapted.
Description : A country with a high rate of population growth took measures to reduce it. The figure below shows age-sex pyramids of populations A and B twenty years apart. Select the correct interpretation about them. ... the growth rate. (d) A is more recent and shows slight reduction in the growth rate.
Last Answer : (d) “A” is more recent and shows slight reduction in the growth rate.
Description : 2 ml each of concentrated HCl, HNO3 and a mixture of concentrated hydrochloric acid and Concentrated nitric acid in the ratio of 3:1were taken in test tubes labelled as A, B and C, A small piece of metal was put in ... the metal dissolved in test tube C. The metal could be: A) Al B) Au C) Pt D) Cu
Last Answer : B) Au
Description : Rate of change of a signal on a transmission medium after encoding and modulation have occurred
Last Answer : baud rate
Description : Your employer makes an attempt to update office sterilization procedures; what would you recommend as the BEST method to verify that sterilization has occurred:** A. Use spore test daily B. Use ... daily and spore test monthly E. Use colour change tape in each load and spore tests weekly
Last Answer : E. Use colour change tape in each load and spore tests weekly
Description : Two 12 ft. sections of aluminum siding are placed end to end on the outside wall of house. How large a gap should be left between the pieces to prevent buckling if the temperature can change by 55˚C? a. 0.21 m b. 0.18 m c. 0.31 in d. 0.18 in
Last Answer : 0.18 in
Description : What is released when chemical bonds are broken but cannot be used to make ATP?
Last Answer : Heat
Description : The chemical name of "Plaster of Paris" commonly used for setting broken bones is – (1) Calcium nitrate (2) Calcium sulphate (3) Calcium carbonate (4) Calcium chloride
Last Answer : (2) Calcium sulphate Explanation: Plaster of Paris is the common name of Calcium Sulphate hemihydrate, with chemical formula: CaSO4.1/2H2O. Plaster of Paris is produced by heating gypsum to about 150°C.
Description : Potato dormancy can be broken through a. Chemical treatment b. Low temperature c. Both of these d. None of these
Last Answer : Both of these
Description : The chemical name of “Plaster of Paris” commonly used for setting broken bones is (1) Calcium nitrate (2) Calcium sulphate (3) Calcium carbonate (4) Calcium chloride
Last Answer : Calcium sulphate