Magnesium reacts with oxygen gas to produce magnesium oxide, light and heat. This reaction is a combination reaction. a catalysis reaction. a decomposition reaction. a double replacement reaction. a single replacement reaction.

One mol of particles of any substance contains how many particles? 6.022times 10^-23 6.022times 10^23 3times 10^-10 10^6 3times 10^10

11. Given the word equation: sodium chloratearrow sodium chloride + oxygen Which type of chemical reaction is represented by this equation? A) double replacement B) single replacement c decomposition D) synthesis

Use values of Delta G_(f)^circ from the appendix of your textbook to determine Delta G_(rtimes n)^circ for the following balanced chemical equation. 2NH_(3)(g)+2H_(2)O(g)arrow 2NO(g)+5H_(2)(g) Delta G_(rxn)^circ =square kJ

Question 4(Multiple Choice Worth 4 points) (01.06 MC) Water is a pure substance. Which of the following is true about water? A chemical change is required to separate the elements present in it. A physical change is required to separate the elements present in it. It is made up of two compounds, each with a different set of atoms. It is made up of an element and a compound.

1) A sample of argon gas has a temperature of 402 K and a pressure of 6.8 atm. What will the temperature be if th pressure is decreased to 2.5 atm?

Muriatic acid, an industrial grade of concentrated IICI.is used to clean masonry and cement. Its concentration is 11.7 M.For routine use, a diluted solution of 3.50 Mis prepared, How many milliters of 3.50 M muriatic acid solution contain 8.778 of HCl? Be sure your answer has the correct number of significant figures. square mL

Which of the following statements about isotopes is TRUE? All elements only have one isotope. A mass spectrometer can detect the different isotopes Isotopes of the same element have the same mass. Isotopes of the same element don't usually have the same properties. Isotopes of the same element differ only in the number of protons.

A strong acid readily donates a proton, forming a (strong/weak) __ conjugate base Fill in the blank square

A strong base is __ ionized in water. 100% partially

Hot Questions

When you balance the Separate Water simulation how many individual oxygen atoms do you need on the products side to complete the balanced equation? 1 2 3 4

Determine which type of property each statement describes by typing "physical or "chemical" in the blank. Hydrogen is a colorless tasteless, and odorless gas. $\square $ Hydrogen is very combustible in the presence of oxygen. $\square $ Hydrogen is very reactive with most elements. $\square $ Hydrogen is the least dense of all elements. $\square $

Which of the following is an empirical formula? $C_{3}H_{6}$ $C_{3}H_{8}$ CH $C_{2}H_{4}$

Which of the following has the most mass per mole? Oxygen Nitrogen Carbon Potassium

What is the electron configuration for oxygen, O? $1s^{2}2s^{2}2p^{3}$ $1s^{2}2s^{2}2p^{6}3s^{2}$ $1s^{2}2s^{2}2p^{4}$ $1s^{2}2s^{2}2p^{6}3s^{2}$

Gasoline, paints, thinners solvents, natural gas acetylene are all examples of potential: A. Toxic hazards. B. Flammable hazards. C. Combustible hazards. D. All of the above. E. None of the above.

Trans fats and partially hydrogenated oils are the same thing. False True

Is this compound ionic or covalent? $NO_{2}$ ionic covalent

(b) $H_{3}C-CH-CH_{2}-CH_{2}-CH_{3}\\ H_{2}C-CH_{3}$ 2-Ethylpentane Spell out the full name of the compound. The correct name is $\square $

Question 2 (Multiple Choice Worln 2 Points) (05.01 LC) Which of the following groups have seven valence electrons and are very reactive? Column 1 alkali metals Column 2 alkaline earth metals Column 17 halogens Column 18 noble gases