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
What is the quotient and remainder of 1265/700?
answered Jul 11, 2024
7 votes
23.8k 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
What was the main short term impact of the walkouts?
answered Jan 20, 2024
6 votes
47.8k 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
Circulatory system is divided into two sections: 2) Systematic circuit. a) Venous circuit b) Heart circuit c) Organ circuit d) Arterial circuit
answered Jan 15, 2024
5 votes
6.5k 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
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