Questions by Adriaan Pelzer

Questions by Adriaan Pelzer

In the late 1600s, English astronomer Edmond Halley presented a model of Earth’s structure. Halley originally claimed that Earth was composed of an outer rocky shell and an inner rocky sphere, separated

asked Dec 18, 2024

1 answer

3 votes

188k views

What is the value of N in 0.94×2.14=N?

asked Nov 27, 2024

1 answer

1 vote

80.9k views

For certain photochemical reactions, multiple photons are required per molecule to initiate the reaction. How many photons is needed to initiate a photochemical reaction that requires 6.8 x 10⁻²⁰ kJ energy

asked Sep 17, 2024

1 answer

1 vote

97.3k views

A friend tells you N2 has three π bonds due to overlap of the three p-orbitals on each N atom. Do you agree? a) Yes. b) No.

asked Jun 19, 2024

1 answer

1 vote

209k views

Determined the total number of electrons of the s and p orbitals for the following elements: He= ? B= ? N= ? Na= ?

asked Feb 12, 2024

1 answer

3 votes

137k views

You have been assigned to write an article that will be published at the time of the Summer Olympics. In this article, you must give "Olympic style" awards to the parts of the cell based upon their importance

asked Jan 20, 2024

1 answer

3 votes

31.2k views

Reduce the given system to echelon form to find a single solution: 1 . x₁-3x₂-14x₃-6x₄=0 2. 3x₁-2x₂-7x₃-10x₄=0 3. x₁+3x₂+16x₃+x₄=0 Please provide the steps or details on how to reduce this system to echelon

asked Jan 15, 2024

1 answer

5 votes

147k views

If a line has a slope of 4 and goes through the point open parentheses short dash 1 comma 1 close parentheses, then the equation for the line in slope-intercept form is ______________. a.) y equals short

asked Sep 15, 2023

1 answer

4 votes

196k views

Select all the expressions that are equivalent to 16^5/2

asked Sep 4, 2023

1 answer

1 vote

181k views

For how many years did Britain lease the colony of Hong Kong? O fifty-nine seventy-nine O ninety-nine

asked Aug 28, 2023

1 answer

4 votes

42.7k views

(AP computer science) 1.) How is memory in a computer like the land a house is built on? 2.) What is the relationship between a Painter object and the Painter class?

asked Aug 1, 2023

1 answer

4 votes

131k views

How does learning about immigration between 1896 and 1914 affect your view of immigration in Canada today?

asked Jun 19, 2023

1 answer

1 vote

108k views

The figure is made by two right rectangular prisms.7 inches5 inches15 inches2 inches4 inches3 inches22 inchesWhat is the volume of the figure?help me please i just guessing

asked Jan 12, 2023

1 answer

0 votes

102k views

What mass will 7.29 moles of CO2 gas contain?

asked Nov 17, 2022

1 answer

21 votes

207k views

What percent is... 50% of 50% of x

asked Oct 14, 2022

2 answers

11 votes

114k views

Keeven uses 78 feet of fence to make a rectangle pan for his pet rabbit. The length of the pin is 20 feet.What is the width of the rectangle pen

asked Jul 21, 2022

1 answer

3 votes

215k views

Salma paid a total of $42 for 7 frozen meals. She had a coupon for $6 off the regular price of each meal. Each meal had the same regular price. What was the regular price of each meal

asked May 28, 2022

2 answers

1 vote

106k views

Should we take the right or left FORK of the road? What type of FORK does this sentence mean? A.something that you eat with B.a large farm tool C.a place where a road branches D.to hand over a possession

asked Feb 24, 2022

2 answers

7 votes

155k views

What is 7 years into hours

asked Jan 12, 2022

1 answer

4 votes

197k views

What Germany possibe?

asked Sep 3, 2021

1 answer

2 votes

219k views

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