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When 2.1x10^3 J of heat

what expression represents the largest number?a ) 6.1x10^-7 b ) 4.1x10^-7 c ) 3.1x10^-8 d ) 5.1x10^-8
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2. asked by haven
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which of the following could represent the pH of a strong base?a. [H3O+]=1x10-2 b. [OH-]=1x10-2 c. [H3O+]=1x10-7 d.
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A mild steel bar of length 10cm and width of 10mm is extended by 0.01 mm. Which of the following is equal to the change in width
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2. asked by dmkp
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a mild steel bar of length 10cm and width of 10mm is extended by 0.01 mm. Which of the following is equal to the change in width
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2. asked by dmkp
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When 2.1x10^3 J of heat is added to 100.g of a substance, its temperature increases from 15 C to 40 C. What is the specific heat
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2. asked by Dorrito
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Multiply. Write in scientific notation.(1.1x10^-5)(3x10^-2) A: 4.1x10^-7 B: 4.1x10^10 C: 3.3x10^-7 D: 3.3x10^10
1. 7 answers
2. asked by EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE
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Arrange the following in order of increasing mass:1. one F atom 2. 1x10^-20 mol of F 3. 1x10^-20g of F 4. one F2 molecule A.
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2. asked by Anonymous
3. 751 views
1x10-2 mol of MgSO4 (Ksp = 9) is added to 1 L of water. Will 1x10-5 mol of CaSO4 (Ksp = 10-6) completely dissolve in the
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2. asked by Trixie
3. 1,167 views
1. Evaluate 1/2a^-4 b^2 for a=-2 and b=4A. 2 B. 1/2 C. 3 D. 4 2. Simplify. Write in scientific notation. (9x10^-3)^2 A.
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2. asked by BTS
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Calculate how much K3Fe(CN)6 [MW: 329.24] you would need to weigh out to make a 1x10-3 M solution dissolved in 0.2 M NaNO3 in a
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2. asked by QJ
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