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Q: Which of the following is a mixture? A. carbon dioxide B. silicon C. silicon dioxide D. sand
A: D. Sand is a mixture of many different particles.
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Original conversation
User: A mixture can be classified as a solution, suspension, or colloid based on the A. number of particles it contains. B. size of its largest particles. C. color of its particles. D. size of its smallest particles.

User: Which of the following is a mixture? A. carbon dioxide B. silicon C. silicon dioxide D. sand

Weegy: D. Sand is a mixture of many different particles.
arkelfarkel|Points 42|

User: A material that is malleable and conducts electricity is most likely A. wood. B. ice. C. a metal. D. motor oil.

Weegy: The answer is: C. a metal.
koaley|Points 6262|

User: Which of the following is a heterogeneous mixture? A. water in a swimming pool B. sugar water C. a jar of mixed nuts D. stainless steel

Weegy: B. sugar water
Caprisun|Points 849|

User: Flammability is a material’s ability to burn in the presence of A. hydrogen. B. nitrogen. C. oxygen. D. carbon dioxide.

Weegy: Flammability is a material?s ability to burn in the presence of A. hydrogen. [smile]
Mayang30|Points 746|

User: Which of the following is a physical change? A. sawing a piece of wood in half B. burning a piece of wood C. rust forming on an iron fence D. a copper roof changing color from red to green

User: A mixture that appears to contain only one substance is a(an) A. homogeneous mixture. B. heterogeneous mixture. C. compound. D. element.

Weegy: A mixture that appears to contain only one substance is a homogeneous mixture.
rdsa77|Points 8703|

User: If an unknown substance CANNOT be broken down into simpler substances, it is A. a compound. B. an element. C. made of one kind of atom. D. both b and c

Weegy: D. both b and c
sipichapie|Points 4794|

User: A substance that has high reactivity A. easily combines chemically with other substances. B. burns in the presence of water. C. displaces dissolved oxygen. D. has a high boiling point.

Weegy: The answer is A. It easily combines with other substances.
jcr.2008|Points 840|

User: Which of the following statements about ice melting is true? A. Energy flows from the ice to its surroundings. B. Water molecules move from their fixed position. C. Water molecules lose energy. D. The temperature of the ice increases as it melts.

Weegy: C. Water molecules lose energy about ice melting is true
Expert answered|uxiali|Points 1431|

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Asked 3/22/2013 3:20:27 PM
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Perform the modular arithmetic operation. [(5 - 9) · 3] (mod 5) A. 1 B. 2 C. 0 D. 3
Weegy: answer is D. 3! User: Perform the modular arithmetic operation. -12 (mod 5) A. 1 B. 2 C. 0 D. 3 Weegy: 2w - 2 = -12, 2w=-10, w=-5 User: Use the simple interest formula to find the missing value. Rates are annual rates. Assume 360 days per year and 30 days per month. p = ?, r = 4.5%, t = 10 days, i = $26.68 A. p = $21,344.00 B. p = $711.47 C. p = $7114.67 D. p = $21,670.09 Weegy: The answer is A. p = $21,344.0 The formula is 26.68 * 36) / 0.045 = 21 344 User: Write as a decimal. 249.4% A. 24.94 B. 24,940 C. 249.4 D. 2.494 Weegy: 249.4% = D.2.494 User: Solve the problem. Where appropriate, round to the nearest tenth of a percent. The price of a printer was reduced from $400 to $180. What was the percent decrease? A. 60% B. 122.2% C. 45% D. 55% Weegy: The price decrease is 70%. User: Use a day counting table to find the exact number of days from the first date to the second date. Assume the year is not a leap year unless otherwise indicated. January 15 to July 31 (a leap year) A. 197 B. 198 C. 213 D. 196 Weegy: b User: Use the sinking fund formula to determine the payment needed to reach the accumulated amount. Round the answer to the nearest cent. Annual payments with 5% interest compounded annually for 8 years to accumulate $6000 A. $736.92 B. $544.14 C. $628.33 D. $203.05 Weegy: c User: Solve the problem. Round to the nearest hundredth.45% of what number is 81? A. 180.00 B. 56.00 C. 1800.00 D. 0.56 (More)
Question
Not Answered
Updated 9/1/2014 2:21:51 AM
1 Answer/Comment
45% of 180 is 81.
81/45% = 81/0.45 = 180
Added 9/1/2014 2:21:51 AM
This answer has been confirmed as correct, not copied, and helpful.
Confirmed by jeifunk [9/1/2014 2:32:07 AM]
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