The number 1960900, when rounded off to 4 significant figures, would appear as _______   a. 1.961 x 10-6    b. 1961   c. 1960   d. 1.961 x 106

Q: FF C1O% interest rate) F7s interest rate) Mia's endowment - 100 Ma's IC Digher utility) Julia's ic…

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Q: 6. 1.23 x 10* is equal to A. 0.0000123 B. 0.000123 C. 1.230000 D. 123000 E. 1230000

A: 1.23 × 10-4 is equals to

Q: 58. Perform each calculation to the correct number of significantfigures.(a) 89.3 * 77.0 * 0.08(b)…

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Q: 5. Find x if (0.0010-x) 1.8 x 104

A: Answer: This is the sort of equation can often be seen in equilibrium situations, where we have to…

Q: a. (1.70) (7.87 x 10-3) (7.986 × 10³)-(4.86 b. x × 10²) X C. (7.986 × 10³)+(4.86 × 10²) X 8.306 d.…

A:

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

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Q: The density of a metal is 8.67 g/cm³. How many pounds are in 298.86 in3 of the metal? (You can use…

A: Given  Density of metal = 8.67 gram/cm3 Volume = 298.86 inch3 Mass in pounds = ?

Q: 4. Goal: 2C02 + н20 --- С2Н2 + 5/2 02 Given: ДН - -94.5 кJ ДН - 71.2 КJ а. С2H2 + 2H2 ---С2Н6 b. Н20…

A: Chemical equation: 2CO2  + H2O    →   C2H2  + 52O2   ∆Hrxn = --94.5  -2× 71.2 - -283           =…

Q: (c) (26.9 g- 6.5 g)/(0.061 mL - 0.003 mL) i Units no units. thev cancel Hint

A:

Q: 6. Convert 6.015km to the following units. Round your answer to 4 sig. a. meters b. miles c.…

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A:

Q: Part C to heat 34.2 g of copper from 122° C to 227 °C Express your answer using three significant…

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Q: A meter is about an/a [A] inch [B] foot [C] yard [D] mile * O A C D

A:

Q: When 66.875 is added to 18.16, the result should be reported with When 88.94 is subtracted from…

A:

Q: 44.4x10 Bq = Ci O 4.00 x106 O 9.0 x10 4 O 12.0 x10 5 O 18.0 x107 O 22.0 x105

A:

Q: 1(a) Convert the number 0.0000735 to scientific notation. (b) Round off the number 24.15725 to the…

A: Applying concept of scientific notation and significant figures.

Q: ln[A]t/15.4=−(4.78x10^−4M⋅d−1)(1.1x10^4d) forgot how to solve for [A]t

A:

Q: Carry out the following mathematical operations and answer the questions that follow. 33.916 x 95.7…

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Q: ln[A]t15.4=−(4.78x10^−4M⋅d−1)(1.1x10^4d) I forgot how to solve for [A}t.

A:

Q: Density of some metals Metal Density (g/cm³) Aluminum 2.70 Copper 8.95 Gold 19.3 Iron 7.87 Lead 11.3…

A:

Q: a new temperature scale ("N), water boils at 180.0°N and freezes at 60.0°N. Calculate the normal…

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Q: The density of lead is 11.4 g/cm3. Convert the density to lb/ft3.

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Q: (5) One meter contains how many micrometers? A: 1x 109 B: 1 x 10-9 C: 1 x 10-6 D: 1 x 103 E: 1 x 106

A: 1 Meter contains 1 × 106 micrometres.

Q: Round off 0.0003419 to three significant digit

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Q: Compare: number of plates, N W₁ = 2.5; W₁l = 3.0 I 0.18 0.16 0.14 0.12 0.1 11 0.08 0.06 0.04 0.02 0…

A: No of plates = N = 5.54 * (Retention Time / Half of base width)2

Q: 6. 1.23 x 104 is equal to A. 0.0000123 B. 0.000123 C. 1.230000 D. 123000 E. 1230000

A: 1.23 × 10-4 is equal to

Q: C. 136 Q3. Accuracy refers to how close a measured number is to A. zero C. Other measured numbers…

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Q: 2.20 x102 + 2.7298 ×10-1 + 1.1×10-5 O a. 29.50 x10-2 Ob. 2.950 x10-1 O c. 295.0 x10-3 O d. 3.0 x10-1…

A: 295.0*10-3

Q: 12 O A.[01-1] O B. (01-1) o c. [21-2] O D. (21-2) O E. [0 -1-2]

A: Steps we have to follow-

Q: The value of the Euro is currently $1.40 U.S. and the price of 1 liter of gasoline in France is 1.46…

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Q: How do I solve this? I do know that it is linear.

A: Using the given data, graph can be drawn by plotting p H against volume of base and is given below:

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Q: Al + Ni(NO3)2→ Al(NO3)3 + Ni 1 Al 1 1 Ni 1 2N2 606 1 Al 3 1 Ni 1 2N3 506 Ob. a. 1 Al 1 1 Ni 1 IN1…

A: We are having four set of atom inventory , we have to predict the correct set of atom inventory.

Q: A В D 70 3.65 3.60 3.55 3.! 1.6 1.4 1.2 1.0 0.8 A B C D 0 8.5 8.0 7.5 7.0 6.5 6.0 5.5 5.0 4.5 4.0…

A: Signal B, C& D: correspond to H (attached sp3-C). Signal A: correspond to H ( attached to sp3-C…

Q: temperature in C.

A: Given : Temperature = 122F

Q: a 10ml graduated cylinder has a height of 7.12 inches. height in feet how to work this problem out

A: Given : height of cylinder in inches = 7.12

Q: The result of the calculation (1.0161-0.8711) with correct number of significant figure is a.…

A: Given calculation problem;   1.0161 - 0.8711

Q: Convert 0.00260 centimeters into nanometers. C. d. Convert 23.1 °F into °C. Convert 48 miles per…

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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.