Recent activity by Ken Zhang

Recent activity by Ken Zhang

How many hydrogen molecules are in 0.450 moles of H2?

asked Dec 17, 2023

1 answer 27.8k views

You are providing first aid to an unresponsive victim who has been stabbed and is bleeding profusely. you should not provide care until a next-of-kin can provide consent. a. true b. false

answered Sep 25, 2023

1 answer 160k views

3. What is the WEIGHT of an object if it has a mass of 12kg? 4. What is the MASS of a golfball if it has a weight of 1.5N1? 5. What is the MASS of a bowling ball if it has a weight of 71.15N 1? help?

answered Aug 13, 2023

1 answer 79.3k views

8 ft 10 ft Find the area of this figure. Round your answer to the nearest hundredth. Use 3.14 to approximate T. A =[?] ft2

answered Jul 30, 2023

1 answer 194k views

GRAPHS AND FUNCTIONSambining functions to write a new function that models a real-

answered Jul 9, 2023

1 answer 18.5k views

What role did robert de niro play in the godfather.

asked Jun 2, 2023

2 answers 45.7k views

How introduction of plasmid dna can affect bacterial phenotypes.

answered May 8, 2023

2 answers 167k views

Divide and reduce to lowest terms10÷ 5/8

asked Apr 25, 2023

1 answer 146k views

Lucia is using energy at a rate of 210 kilocalories (kcal) per hour (h) ice skating. At what rate is Lucia using energy in calories per minute ( / min ) ?

asked Apr 13, 2023

1 answer 174k views

Bill had $5.42 and earned 2.25 he spent $3.78 how much did he have left

answered Dec 19, 2022

1 answer 228k views

If f(x) = 7(x-1) + 8 , what is rhe value of f(11) ?

answered Oct 21, 2022

2 answers 175k views

In which country would you find the image above?

answered Oct 14, 2022

2 answers 53.0k views

Element X is a radioactive isotope such that its mass decreases by 67% every year. If an experiment starts out with 740 grams of Element X, write a function to represent the mass of the sample after t

answered Sep 30, 2022

2 answers 227k views

Takyra has n nail polish colors. Samantha has 4 more than twice the number of nail polish colors. In terms of n, how many nail polish colors does Samantha have? 3n - 4 3n +4 2n +4 2n x 4

asked Sep 27, 2022

1 answer 228k views

How many moles of water are produced from the reaction of oxygen with four moles of propane (C3H8)? C3H8 + 5O2 --> 3CO2 + 4H2O

asked Sep 16, 2022

2 answers 87.2k views

Who came up with the idea that random evolution is guided by natural selection to produce order and the complex function Darwin Lamarck Wallace NOTE: Select which one

answered Aug 27, 2022

2 answers 38.2k views

How much time would it take to perform 3200 J of work with a power output of 160 Watts

answered Jul 29, 2022

1 answer 95.0k views

Help me please finish the hypothesis! Only have 2 minutes No websites HYPOTHESIS: If 2 chambers of water are poured side-by-side, the warmer water will mix the cooler layer because it ___________

answered Jul 18, 2022

1 answer 96.3k views

Who freed the slaves in America? A Lincoln B the slaves freed themselves

asked Jul 13, 2022

2 answers 145k views

Today, everything at a store is on sale. The store offers a 10% discount. The discount price of a hat is $18. What is the regular price?

answered Jul 8, 2022

2 answers 118k views

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