Oxygen and acetylene fuel gas hoses should be colored differently to distinguish them from one another. A. True B. False

The pressure inside a 4.85 L balloon at 44^circ C was 453. mmHg. What is the pressure inside the balloon when it is cooled to -45^circ C and expands to 9.65 Lin volume? Round your answer to 3 significant figures. square mmHg

1. The green house gases that cause global warming are; A. CO, CO_(2),CH_(4),O_(3) and CFCs & HCFCs B. CO_(2),CH_(4) CFCs & HCFCs,O_(3) and N_(2)O C. CO, SO_(3) NO, CFCs & HCFCs and CH_(4) D. CO_(2),SO_(2) CFCs & HCFCs,O_(3) and CH_(4) 2.Which of the following do NOT comply with the principle of green chemistry? A. Reducing the consumption of organic solvents B. Reducing the generation and emission of wastes C. Eliminating the use of toxic reagents D. Reducing the use of renewable raw materials 3.Chief air pollutant which is likely to deplete ozone layer is A. Sulphur dioxide and CFCs C. Carbon dioxide and CFCs B. Carbon monoxide and CFCs D. Nitrogen oxides and CFCs

An aldehyde is synthesized by reduction of ketone oxidation of a 2^circ alcohol oxidation of a 1^circ alcohol oxidation of a 3^circ alcohol

Glycerol is used as a moistening agent. solvent. fuel additive. hydraulic fluid.

From left to right,this equation describes what happens when carbon dioxide square in seawater. CO_(2)+H_(2)Oleftharpoons H_(2)CO_(3)leftarrows HCO_(3)^-+H^+orCO_(3)^2-+2H^+

Soda is more acidic than pure water. If you were to inspect each how would they compare? Pure water has a greater H^+:OH^- ratio than soda. Soda contains H^+ , whereas pure water does not. Soda has a greater H^+:OH^- ratio than pure water. Pure water would react more strongly to the addition of a base than soda would. Pure water contains OH^- , whereas soda does not.

a. When 8.55 g diethyl ether (C_(4)H_(10)O) is dissolved in 100 g of benzene, what will be the boiling point of this solution? K_(b) for benzene is 2.53^circ C/m and its boiling point is 81.10^circ C square [ Select ] v b. The freezing point of a solution of barium phosphate where 395 g barium phosphate is dissolved in 888 g of di water is [Select] ^circ C.K_(f)=-1.86(^circ C)/(m)

Se puede utilizar un compuesto epoxico para sellar una fuga en un evaporador de aluminio: Verdadero Flaso

Which of the following ions does not have the same electron configuration as the noble gas neon? S^-2 Al^+3 0^-2 Mg^+2 F

Hot Questions

An element cannot be broken down by chemical means. True False

Why is vaporization classified as a phase change? It forms ash Identity changes It is reversible and involves state change It forms new compounds

Which of the following statements about a catalyst is true? A catalyst accelerates a reaction by lowering the energy of activation. A catalyst accelerates a reaction by raising the energy of activation. A catalyst accelerates a reaction by changing the amount of reactant and product at equilibrium. A catalyst accelerates a reaction by lowering the equilibrium constant.

The compound $2,4,6$ trimethylheptane has how many chiral centers? o 3 1 4

Complete the atomic orbital diagram for the ground-state electronic configuration of phosphorus. $\square $ $\square $ $\square $ $\square $ $\square $ $\square $ $\square $ $\square $ $\square $

13. Base your answer to the following question on the balanced equation below. $2Na(s)+Cl_{2}\rightarrow 2NaCl(s)$ Explain, in terms of electrons, why the bonding in NaCl is ionic.

Which of the following types of compounds can form hydrogen bonds with itself? Alcohols ethers alkenes

Mixtures can be separated by physical changes. Please select the best answer from the choices provided T F

Which among the following is a chemical change? Reactivity Melting Cutting Freezing

Part F $CH_{3}CH_{2}CHCl\\ \downarrow \\ CH_{3}$ Spell out the full name of the compound.