Questions by PSK

Questions by PSK

Write a balanced chemical equation for the reaction in which carbon reacts with zinc oxide to produce zinc and carbon dioxide.

asked Nov 27, 2023

2 answers

4 votes

82.7k views

Select all the numbers that are not written in standard form. A. 80 times 10 to the power of 7 B. 4.82 times 10 to the power of -5 C. 3.88 times 10 to the power of 3 D. 5 times 10 to the power of -2 E.

asked Aug 7, 2023

1 answer

0 votes

107k views

By what percentage did China's population increase between 1650 and 1900?

asked Jun 3, 2023

1 answer

23 votes

91.4k views

Which word describes the four angles formed by intersection of two perpendicular lines

asked Feb 27, 2023

1 answer

5 votes

107k views

Whats best way for the UK to achieve lasting peace and recover from war? HELP!

asked Nov 4, 2022

1 answer

1 vote

57.8k views

Which of these medical exams most throughly evaluates a persons ability to participate in exercise

asked Sep 17, 2022

2 answers

15 votes

97.9k views

Blu-Rays can be produced at a constant marginal cost of $5 per disk, and Superhero Studios is releasing the Blu-Rays for its last two major films. The Blu-Ray for Obscure-Man is priced at $20 per disk,

asked Sep 15, 2022

1 answer

2 votes

41.0k views

A zookeeper takes care of 5 mountain lions. The keeper orders 32.5 pounds of meat for them each day. Each mountain lion receives the same amount. What equation can you use to find how much meat each mountain

asked Aug 21, 2022

1 answer

16 votes

166k views

There are 3 liters of orange juice at a school party. 10 students want to drink all of the orange juice, and they all want to get exactly the same amount. How much orange juice can each get? (enter your

asked Jun 15, 2022

2 answers

1 vote

85.2k views

What is the climate of Samoa

asked Jun 3, 2022

1 answer

2 votes

169k views

What is the molar mass of MgI2

asked May 1, 2022

1 answer

16 votes

184k views

According to Carter G. Woodson, schools taught black people to believe in their inferority. True or false

asked Feb 6, 2022

1 answer

0 votes

5.3k views

Why did Congress pass the Tenure of Office Act? To control the military districts in the South To keep officials who supported President Johnson in office To prevent Johnson from replacing officials who

asked Dec 7, 2021

1 answer

5 votes

103k views

Natural selection occurs when:____. a. a factor in the environment alters the genetic information in DNA of all members of a species. b. only when nonrandom mating occurs. c. a new genetic variation occurs

asked Oct 10, 2021

1 answer

0 votes

128k views

You must make an aqueous solution that will be a good conductor of electricity. You can pick two substances to add to the water. Select the two substances that you could add to water to make it the strongest

asked Oct 5, 2021

1 answer

2 votes

20.6k views

A 13.7g sample of a compound exerts a pressure of 2.01atm in a 0.750L flask at 399K. What is the molar mass of the compound?a. 318 g/mol b. 204 g/mol c. 175 g/mol d. 298 g/mol

asked Aug 23, 2021

1 answer

5 votes

75.4k views

in one earth century, both Saturn and earth will completely revolutions of the sun. which of the following correctly compares the number of revolutions that the two planets will complete

asked Jul 26, 2021

1 answer

1 vote

87.8k views

Initially, the market price is p=15, and the competitive firm's average variable cost is 19, while its average cost is 22. Should it shut down? Why? This firm should A. not shut down because average

asked Jul 2, 2021

1 answer

0 votes

61.4k views

Bob bought $5000 worth of Adobe Systems stock. This transaction was brokered by John, who received $50 for his help. I think the $5000 should be included in GDP, and the $50 should not be included in GDP.

asked Jun 17, 2021

1 answer

2 votes

198k views

3) prove that the composition of soda (sodium bicarbonate) is 27.4% sodium 1.2% hydrogen 14.3% carbon 57.1% oxygen

asked May 22, 2021

1 answer

4 votes

56.3k views

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