.Which is heavier? 1 (a)Group of answer choices 1.3 kg 1.3 lbs 1.3 g   (b)Which is shorter? Group of answer choices 0.01 hr 25 s 2500 ms   (c) Which is more in total? Group of answer choices 1.50lbs + 678g 0.98kg + 22,500mg

Q: Carry out the following operations and express the answers with the appropriate number of…

A: Given, Express the answers with the appropriate number of significant figures : (a). 14.3505 + 2.65…

Q: m= 15.5g, V = 6.01 cm3, what is the density?

A: Density (d) is the measure of mass per unit volume.                        d=mass(m)volume(v)

Q: 105. A flask containing 23.21 mL of a liquid weighs 146.3 g with the liquid in the flask and 131.8 g…

A: Answer:Here:

Q: Near room temperature, the density of ethanol can be expressed using the equation d = (-8.99 x 10 g…

A: The density of a compound can be determined by the ratio between the mass of the compound to the…

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

A:

Q: Pheromones are compounds secreted by females of manyinsect species to attract mates. Typically, 1.0…

A: Density can be calculated by using the formula given below as; Density=MassVolume…

Q: Perform the following mathematical operations and express the result to the correct number of…

A: To the correct, round off the answer by the least number of significant figures that are present in…

Q: The drug cyclophosphamide is administered for breast cancer at a daily dose of 100 mg/m^2 for up to…

A: A question based on dimensional analysis that is to be accomplished.

Q: (a) If the density of a liquid is 0.80 g/mL, what is its specifi c gravity? (b) If the specifi c…

A: Specific gravity =density of substancedensity of water Given, Part a: density of liquid =0.80g/mL…

Q: Q15. What is the mass of 225 mL of a liquid that has a density of 0.880 g/mL? (a)) 198 g (b) 0.0039…

A:

Q: . A box is 252.50 cm wide, 18.25 cm tall and 6.50 cm deep. Calculate the volume of the box in…

A: Given=> A box having:-       Length (L) or tall=>18.25 cm         Width (W)=>252.50 cm…

Q: f. Though considerably faster than that of lamb's tail, the exact time unit shake (1 shake = 10 ns)…

A: 1 day=24hrs So 27.3day= 27.3×24=655.2hrs 1hrs=3600sec So 655.2hrs=655.2×3600=2358720sec 10ns=1shake…

Q: Note: In the calculations below. consider all distances to be measured between the centers of the…

A: Step 1: Step 2: Step 3: Step 4:

Q: 2. Five objects in a region where the acceleration due to gravity is 30.2 ft/s? are as follows: X1 =…

A:

Q: a sample of gold and quarts weighs 100g the density of gold 19.3 and quarts 2.65 and for sample 0.4(…

A: We are given the density of the sample, which is . We are also given the densities of gold and…

Q: 4A) A new penny has a mass of 2.49g and a volume of 0.349cm³. Is the penny pure copper?

A:

Q: (a) 8.160 m = ________ cm (b) 781 mL = ________ L (c) 4.18 kg = ________ g (d) 27.8 m = ________…

A:

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.