Recent activity by Vladimir Hidalgo

Recent activity by Vladimir Hidalgo

Doreen Schmidt is a chemist. She needs to prepare 32 ounces of a 9% hydrochloric acid solution. Find the amount of 16% solution and the amount of 8% solution she should mix to get this solution. how many

answered Dec 30, 2023

1 answer 5.7k views

Figure A is the pre-image and figure R is the image. Choose if dilation was an enlargement or reduction, then choose the scale factor. A (3, 4) and R (9, 12) Scale Factor:

answered Sep 17, 2023

1 answer 64.4k views

PLS HELP PLS HELP PLS HELP

asked Jul 22, 2023

1 answer 58.1k views

9. A 2.00 L flask is filled with propane gas (CH) at a pressure of 1.00 atm and a temperature of -15.0°C. What is the mass of the propane in the flask?

answered Jun 24, 2023

1 answer 90.5k views

9. A compound that does not conduct electricity and dissolves in water. Once dissolved, itdoes not conduct electricity. What type of bonding does it likely have?b. Ionicc. metallica.Covalent

asked Apr 10, 2023

1 answer 209k views

Essential Question: What are the roles of cities and central governments in civilization?

answered Apr 1, 2023

1 answer 66.9k views

What is the mode: 18,21,22,18,19

answered Mar 28, 2023

1 answer 18.0k views

Prompt Explain three strategies you can use to take better notes.

answered Feb 25, 2023

2 answers 24.3k views

Help me please!!!!!!!!!!!!!1

asked Feb 6, 2023

1 answer 222k views

Which term represents the fixed proportion of elements in a compound? 1. atomic mass 2. molar mass 3. chemical formula 4. density formula

answered Sep 24, 2022

2 answers 136k views

2) Ms. Van is going to build a small rectangular garden in a part of her yard. The garden's length will be four meters longer than three times the width of the garden. Write a polynomial expression to

answered Sep 20, 2022

1 answer 134k views

A positively charged particle initially at rest on the ground accelerates upward to 160 m/s in 2.90 s . The particle has a charge-to-mass ratio of 0.100 C/kg and the electric field in this region is constant

asked Aug 19, 2022

1 answer 124k views

13, 69, 89, 25, 55, 20, 99, 75, 42, 18, 66, 88, 89, 79, 75, 65, 25, 99, 66, 78. Order from least to greatest

answered Jun 28, 2022

1 answer 23.7k views

Triangle ABC contains side lengths b=3 inches and c= 5 inches in two or more sentences describe whether or not it is possible for mangle B =45 degrees

answered Jun 20, 2022

1 answer 33.3k views

Why did Qin Shihuangdi believe he should be the next ruler of China?

asked Jun 16, 2022

2 answers 68.7k views

A bag contains 5 purple marbles, 2 pink marbles, and 3 green marbles. Draws are made without replacement. P(green, purple)

answered Jun 11, 2022

2 answers 160k views

Which of the pairs of angles are vertical angles and thus congruent? ∠A and ∠G ∠A and ∠B ∠C and ∠F ∠D and ∠H

asked May 22, 2022

2 answers 232k views

What is the equation of the line that is parallel to the line 5x + 2y = 12 and passes through the point (−2, 4)? y = – Five-halves x – 1 y = – Five-halvesx + 5 y = Two-fifthsx – 1 y = Two-fifthsx + 5

asked May 11, 2022

2 answers 74.4k views

Find the measure of AB A. 20 B. 21 C. 22 D. 14

asked Apr 15, 2022

1 answer 41.8k views

The societies of the Neolithic Era did all of the following EXCEPT- A. Used only simple stone tools. B. Developed agriculture. C. Domesticated animals. D. made property.

asked Apr 5, 2022

1 answer 89.4k views

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