79. Convert 2.255 * 1010 g to each unit.(a) kg (b) Mg(c) mg (d) metric tons (1 metric ton = 1000 kg)

Q: Classify each change as physical or chemical. (a) the rusting of iron(b) the evaporation of…

A: Physical change changes the size, shape or phase of substance, Chemical change is a type of change…

Q: Which is larger in each pair, and by approximately how much? (a) A liter or a quart (b) A mile or a…

A: a) A liter or a quart = In the metric system, 1Liter = 1.056 quart. Therefore, a litre is larger…

Q: Make the indicated conversions. (a)    5 m =  km   (b)    5 mL =  dL   (c)    5 mL =  L   (d)    5…

A: 1) 5m = km 1000m = 1km  5m = 0.005 km   2) 5ml = dL 100 ml = 1dL 5ml = 0.05 dL

Q: 33. State whether each of the following conversions is possible or impossible and WHY. For any…

A: We have given five unit conversions. We have to tell whether these conversions are possible or not.…

Q: Classify each property as physical or chemical. (a) the tendency of copper to turn green when…

A: Chemistry is the branch of science which deals chemicals, the chemical behavior of matter and the…

Q: Convert the following quantities into SI units with the correct  number of significant figures. (a)…

A: Given data (a) 5.4 in        (distance)  (b) 66.31 lb     (mass) (c) 0.5521 gal     (volume) (d) 65…

Q: An astronaut on the moon places a package on a scale and finds its weight to be 19 N. (a) What…

A: On the moon, acceleration due to gravity is (gmoon)= 1.63m/s2 We know        F= m ×(gmoon)   Given…

Q: Classify each property as physical or chemical. (a) the tendency for platinum jewelry to scratch…

A: ANSWER

Q: Calculate these masses.(a) What is the mass of 6.00 cm3 of mercury, density = 13.5939 g/cm3?(b) What…

A: Mass of a substance that is present per unit volume is known as density ofthe substance which may be…

Q: 60. When tin comes in contact with the oxygen in the air, tin(IV) oxide, SnO2, is formed. Sn(s) +…

A: The ratio of mass to the volume is known as density.

Q: Copper:(a) Suppose you have a cube of copper metal that is 0.236 cm on a side with a mass of0.1206…

A: a) The number of atoms and fraction of cube filled in the atoms has to be calculated and the reason…

Q: Determine the value of the formation constant ( Kf) for AuCl4", using the correct combination of the…

A: The formation reaction of AuCl4- can be written as, => Au3+ (aq) + 4 Cl- (aq) --------->…

Q: Classify each change as physical or chemical. (a) the explosion of gunpowder in the barrel of a…

A: ANSWER

Q: The molecular liquid chloroform (CHCl3) has a density of 1.48 g/mL, while the molecular liquid…

A: If a new compound forms by mixing of two reactants, that is a chemical change, means both the…

Q: Classify each change as physical or chemical. (a) A balloon filled with hydrogen gas explodes upon…

A: Given statements are : (a) A balloon filled with hydrogen gas explodes upon contactwith a spark.(b)…

Q: Express the results of the following multiplications and divisions to the proper number of…

A: Hi, as you have provided the many numbers of subparts in a single question and have not mentioned…

Q: 5. Density is an important property of the matter, answer the following: (b) Select (1) or (2) to…

A: Here, we have to find whether density is a physical or chemical property of matter.

Q: Classify each property as physical or chemical. (a) the tendency of silver to tarnish(b) the shine…

A: Physical property is the characteristics of matter that is not associated with a change in its…

Q: Which of the following processes is a physical change? (a) evaporation of water; (b) combination…

A: In physical change, there is no change in the chemical composition.

Q: The molecular liquid chloroform (CHCl3) has a density of 1.48 g/mL, while the molecular liquid…

A: The mass of 44.0 mL of CHCl3 is calculated as shown below where m1, d, and V is the mass, density…

Q: Light travels in a vacuum at a speed of 3.00 × 108 m s-1 .(a) Convert this speed to miles per…

A: Given, Light travels in a vacuum at a speed of 3 ×108 m/s . a) We need to convert this speed to…

Q: (a) 8.43 cm to millimeters (b) 2.41 × 10² cm to meters (c) 294.5 nm to centimeters

A: Since you have posted multiple questions with sub-parts , we are entitled to answer the first three…

Q: Distilling a red liquid physically separates it into a red solid and a clear, colorless liquid. The…

A: Element is made up of single type of atoms and compound is made up of different type of…

Q: Write the conversion factor(s) for(a) in² to m²(b) km² to cm²(c) mi/h to m/s(d) lb/ft³to g/cm

A: (a) 1 in² = 0.00064516 m² = 6.4516 x 10-4 m2 (b) 1 km² = 1010 cm² (c) 1 mi/h = 0.44704  m/s (d)…

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.