Answers by Helmer Barcos
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Answers by Helmer Barcos

Answers by Helmer Barcos
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Which of the following have their valence electrons in the same shell? o N o As o Bi He o Ne o F o B o Si o Li
answered Oct 22, 2024
6 votes
151k views
In the following reaction, HCO₃ -(aq)+H₂O( ) <->CO₃ 2-(aq)+H₃O+(aq) _______is an acid and ______ is its conjugate base
answered Aug 14, 2024
0 votes
219k views
a b is flying with a velocity of 22 ft per second and an angle 6 degrees above the horizontal find the vertical and horizontal components of the velocity
answered Jul 5, 2024
4 votes
212k views
These measures are typically reported as a proportion of intervals within a session. a. Cumulative ratios b. Session percentages c. Interval proportions d. Behavioral averages
answered Apr 3, 2024
5 votes
67.5k views
Sylvia is a jewelry maker who wants to make a 55% profit on the necklaces she makes. If it costs $12.40 to make a necklace, what should be the selling price?
answered Mar 4, 2024
5 votes
136k views
What terrible event happened 5 days after the war was over? Lincoln was killed, and a former slave owner (Andrew Johnson) became President. Lincoln was killed and there had to be an election for President.
answered Feb 24, 2024
4 votes
32.5k views
Review the sample movie ratings ERD after 3NF. What is the relationship between tables movie and rating? a) 1:1 b) M:N c) 1:M d) 0:1
answered Jan 20, 2024
1 vote
81.0k views
Which structure in the female reproductive system produces chemicals that regulate the reproductive cycle?
answered Dec 16, 2023
2 votes
60.4k views
What is the solution to the equation? 3(x+9)^3/4 = 24 A. -3 B. 6 C. 7 D. 25
answered Sep 17, 2023
4 votes
1.2k views
What was Marcus Garvey's United Negro Improvement Association (UNIA) best known for doing? A. Protesting for voting rights for members of the African American community O B. Electing African American candidates
answered Aug 3, 2023
2 votes
135k views
What is the most bizzare or astonishing thing that you know about History?
answered Mar 21, 2023
3 votes
156k views
Calculate the force needed to accelerate a baseball with a mass of 0.45 kg to a rate of 175 m/s2. * 78.8 N 0.04 N 85 N 0.39 N
answered Jul 31, 2022
5 votes
66.1k views
Which set of sides will make a triangle? 1 cm, 3 cm, Icm 10 cm, 5 cm, 9 cm 5 cm, 2 cm, 3 cm 10 cm, 3 cm, 4 cm​
answered Jul 23, 2022
3 votes
65.5k views
Question 10 of 10 A triangle has two sides of lengths 4 and 7. What value could the length of the third side be? Check all that apply. DA. 11 ✓ B. 7 C. 3 DD. 5 DE. 17 DE 9 SUBMIT
answered Jun 22, 2022
12 votes
13.1k views
A child’s bike containing 5.25 kg of iron rusts according to the thermochemical equation shown here: 4Fe + 3O2 --> 2Fe2O3, Delta H = -1648 kJ How many kJ of heat will be produced if all of the iron is
answered Apr 29, 2022
3 votes
190k views
A company must decide between scrapping or reworking units that do not pass inspection. The company has 22,000 defective units that cost $6 per unit to manufacture. The units can be sold as is for $2.00
answered Apr 26, 2022
6 votes
109k views
A closed tank contains pure nitrogen gas at a pressure of 855 mmHg and a temperature of 26.3 °C. What would the pressure be if the tank were heated to 1253 °C? (pay attention to units)
answered Mar 23, 2022
4 votes
55.1k views
How did historians help commit a "paper genocide" against the Taino? * 10 points A. They insisted on counting every Taino, but couldn't find any left to count. B. They did not accurately count Taino people,
answered Mar 3, 2022
6 votes
201k views
Two forces of 68 pounds and 66 pounds act simultaneously on an object. The angle between the two forces is 77º. Find the magnitude of the resultant, to the nearest pound. Find the measure of the angle
answered Feb 27, 2022
0 votes
12.2k views
Find the slope of the line that contains the points (-2, 1) and (-2,-9)
answered Jan 31, 2022
6 votes
96.7k views
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