Questions by Kris Johnston

Questions by Kris Johnston

What is computed by dividing mental age by chronological age and then multiplying the result by 100?

asked Nov 3, 2024

1 answer

5 votes

102k views

A 0.1949-g precipitate of ZnS was washed with 800 mL of 0.0010 M HCI solution saturated with 0.1 M H2S. Calculate the amount of ZnS (mass%) lost by washing. Is the loss of the precipitate acceptable?

asked Nov 1, 2024

1 answer

4 votes

74.1k views

Anton van Leeuwenhoek called the cells that he saw through his microscopes animalcules, or little animals, because the cells had structures that enabled them to move on their own. Based on this information,

asked Jul 13, 2024

1 answer

0 votes

96.9k views

1. Which of the following reactions best represents the following particle diagram? (1pt) a. 2 Na + Cl₂ 2 NaCl b. Na₂ + 2 cl → Na₂Cl₂ c. Na₂ + Cl₂ → 2 Nacl d. Na + 2 Cl₂ Nacl

asked May 20, 2024

1 answer

5 votes

156k views

At what age does a soldier have the option of not taking an APFT?

asked May 19, 2024

1 answer

4 votes

133k views

The average incandescent light bulb is measured at 60 W. An equivalent LED light bulb only requires 12 W for the same amount of light production. Both of them convert electricity into heat and light, but

asked Jan 25, 2024

1 answer

3 votes

196k views

Eddie ate a cup of pineapple instead of a cookie for dessert, which increased his nutrient minimums. True False

asked Oct 22, 2023

1 answer

7 votes

224k views

(08.02 mc) what is the percentage by mass of solution formed by dissolving 36.0 grams of hcl in 113.0 grams of water? (4 points) a 73.1% b 31.9% c 26.9% d 24.2%

asked Oct 12, 2023

1 answer

5 votes

8.9k views

Select each answer that is true. There is more than one answer. 12 Select the correct response(s): Natural Irrational Rational Integer Real Whole

asked Aug 14, 2023

1 answer

1 vote

123k views

Rewrite the improper fracition as a mixed number 8/3 15/5

asked Mar 27, 2023

1 answer

9 votes

140k views

Give the numerical coefficient of the term. xw The numerical coefficient is _____.

asked Feb 2, 2023

1 answer

1 vote

52.0k views

HELP HELP HELP A parabola has the equation y = 2x2 + bx - 4 and the equation for the axis of symmetry is x = 3. What is the value of b?

asked Nov 18, 2022

1 answer

18 votes

50.7k views

What is the skin's natural oil? a. sweet b. Melanin c. sebum d. vegetable oil help

asked Jul 13, 2022

1 answer

14 votes

184k views

URGENT NEED HELP A bike rental company charges a flat fee plus an hourly rate, Emma rented a bike for 4 hours and paid £18. Louise rented a bike for 7 hours and paid £25.50. a How much was the cost per

asked Mar 16, 2022

1 answer

2 votes

47.7k views

A rod is heated at the rate of 30 watts at the middle point and is insulated at its two ends. The two half sections are cooled by convection by an ambient fluid at 20 degree Celsius with a heat transfer

asked Jan 28, 2022

1 answer

1 vote

143k views

Please Help ASAP - Lauren is saving for a new purse that costs $65. She already has $14 and will earn $2 for a weekly allowance. Her dad will also give her $3 a week for good behavior. How many weeks will

asked Nov 18, 2021

1 answer

2 votes

211k views

If x - 4 is a factor of x^2 + bx - 24, what is the value of b?

asked Oct 28, 2021

2 answers

1 vote

194k views

A force of 10 N making an angle 30 with horizontal .its horizontal component wll be

asked Aug 11, 2021

1 answer

0 votes

16.2k views

Alph β are the zeros of the polynomial p(x)=3x^2+5x+7 then find the value of 1/alph^2 +1/beta^2

asked Aug 4, 2021

2 answers

3 votes

112k views

Help me with this please

asked Jun 15, 2021

2 answers

0 votes

68.5k views

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