There should be 10.07 x 7.395 2.5x0.08 significant figures in the answer to the following computation.

Q: Add 2.33 ∙ 103 to 4.1 ∙ 102 and express the answer in scientific notation.

A: While adding the number given in scientific notation, we need to first convert the numbers to the…

Q: Express the results of the following calculation in scientific notation 0.0121 cm to the power of 2…

A: Scientific notation is a method of writing a very large and small numbers.

Q: Ethanol has a density of 0.789 g/cm3. What volume of ethanol in mL must be poured into a graduated…

A: Rules for significant figure  All non zero integer are significant  Exact number have unlimited…

Q: Finally, sometimes the desired value does not directly match the units given but is derived from the…

A: Given: The volume of a sheet of metal = 45.5 cm3 Width = 14.8 cm Length = 15.9 cm

Q: Your calculator gives you the number 1761.2868 as the volume (in cm^ 3) of a box 2.0 ft by 6.5 cm by…

A: When rounding off the result of a multiplication, the number of significant figures in the final…

Q: A large painting is 19.2 inches by 20.8 inches. Calculate the area of the painting in meters…

A: Given data :   One Dimension of painting = 19.2 inch = 48.768 cm = 0.48768 m  Other dimension of…

Q: Convert 9.37×10−3 m9.37×10−3 m to the equivalent length in nanometers.

A:

Q: A student reported the density for ten glass beads as d = 2.507 g / 1.22 mL = 2.054918033 g/mL…

A:

Q: If the radius of the sun is 7.001×105  km, what is the average density of the sun in units of grams…

A: Density can be calculated as: Density=MassVolume

Q: A chemistry student needs 45.0 mL of diethmylamine for an experiment. By consulting  the CRC…

A: Given,Volume of diethylamine = 45.0 mL = 45.0 cm3         (1mL = 1cm3)Density of diethylamine =…

Q: The density of copper is 8.97 g/cm^3. What is the volume, in mL, of a 1.00 kilogram mass of pure…

A: 1.00 kg of copper is equal to 1000.0 g of copper. And 1 mL is equal to 1 cm3.

Q: A physical chemist measures the temperature I inside a vacuum chamber. Here is the result. T= -40.1…

A: Here we are asked to find the temperature in SI unit.SI unit of temperature is K, so we need to…

Q: what mass (in g) of solid lead would displace exactly 234.6 liters of water? The density of the lead…

A: Given : density of lead = 11.4 g/cm3                                                 Volume of water…

Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…

A: The conversion of quantity from one unit to another unit is known as unit conversion. During the…

Q: Calculate the density for a solid by volume displacement with a mass of 12.0013 g, initial volume of…

A: Density :   Density is a measure of how compact the mass in a substance or object is. It is defined…

Q: 4.31666666667   What are the significant figures?

A: Significant figures - Total number of digits in a number including the last digit whose number is…

Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…

A: Convert the following measurement:54 cm3 = ? m3

Q: Express the quantity 601.8×10−12s601.8×10−12s in ms. Using 4 significant figures

A:

Q: Calculate the volume in units of cm3 for 24.4 x106 tons aluminum.  The density of aluminum is 2.70…

A: Given: Mass of aluminium = 24.4 × 106 tons. And density of aluminium = 2.70 g/cm3

Q: perform the following calculation, reporting your answer to the correct number of significant…

A: Significant figures of a number are  necessary to indicate the quantity of something. It is also…

Q: 2550 × 115 =?

A: • We need to calculate the final answer of 2550 × 115

Q: Calculate the tare weight for an object placed in a 10.9114 g container with a total mass of 16.4545…

A: Container that when subtracted from gross weight yields the net weight is regarded as tare weight.…

Q: Calculate the volume in units of cm3 for 24.4 x106 tons aluminum.  The density of aluminum is 2.70…

A: Given  Mass of aluminum = 24.4 × 106  tons  density of aluminum = 2.70 gram/cm3 Volume in cm3  = ?

Q: Perform the following multiplications and divisions and express the answer in the correct number of…

A:

Q: A rock was found to have a mass of 72.55 grams.  When the rock was placed in a graduated cylinder…

A: The amount of water displaced when the rock was placed in the cylinder will be equal to the volume…

Q: Multiply or divide the following measurements. Be sure each answer you enter contains the correct…

A:

Q: If you are walking at a speed of 2.5 miles an hour how fast are you moving in kilometers a min.…

A: The speed in kilometers (km) per minutes, it is to be determined. Given: speed = 2.5 miles/hr 1 mile…

Q: Answering to the correct number of significant figures, what is 5.80 x 120? A) 696 B) 700 C) 7.0 x…

A: The given equation is, 5.80 × 120 = 696

Q: How many number of significant figures are in the measurement 3.88 x 10-3 dm?

A:

Q: For the following division problem: (6.626 x 10–30) / (9.63 x 107) = ? What is the answer reported…

A: When we divide  the two same numbers  having  coefficients,  like 10-2/10-4 than here we just…

Q: Perform the following calculations: a) 14.86 ml + 15.0 ml + 14.980 ml = b) (42.927 g/ml)(9.00 ml)…

A: According to the rule for significant digits in addition and subtraction, the number of significant…

Q: A student is given the following question: "What is the mass of a gold bar that is 7.379 × 10–4 m3…

A: We know,Mass = Density x Volume

Q: a rectangular block has dimensions 2.9 cm x 3.5 cm x 10.0 cm. the mass of the block is 610.0g. what…

A: Recall the following expression of volume and density         Volume=length×width×heightand,…

Q: The sides of a certain rectangular wood block were measured 0.1294 meters, 7.41 centimeters and 9.4…

A: The volume of a given substance is defined as the amount of the space occupied by the substance that…

Q: The dimensions of a rectangular object were obtained as shown below. Use the data to determine the…

A: Area of a rectangle with length (a) and width (b) =ab  The least number of significant figures in…

Q: Carry out the following conversions. Report your answers to the correct number of significant…

A: (G)• convert 31.8 Pounds to Grams :-To convert 31.8 Pounds to Grams you have to multiply 31.8 by…

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.