Question
18. Match each term to its correct description.
Column A
1.
Concentration:
Concentration
2.
Saturated Solution:
Saturated Solution
3.
Unsaturated Solution:
Unsaturated Solution
4.
Supersaturated Solution:
Supersaturated Solution
Column B
a.A solution with as much dissolved solute as it can hold at a given temperature. No more solute can be dissolved.
b.A solution that holds less solute than is possible at a given temperature. More solute can dissolve.
c. The amount of one substance in a certain volume of another substance.
d. A heated solution that holds more dissolved solute than is possible at a lower temperature.
19. A rocket has a mass of 0.8 kg and an engine that provides 100 N of force. A second rocket is being designed to use the same engine but accelerate at half the rate of the first rocket. What is the mass of the second rocket?
a
0.4 kg
b
1.6 kg
c
2.4 kg
d
0.8 kg
20. Looking at the periodic table, determine the number of valence electrons present in Phosphorous (P).
a
5 valence electrons
b
3 valence electrons
c
4 valence electrons
d
2 valence electrons
21. Which of the following would be a situation with unbalanced forces?
a
Two people pulling on the same side of a wheelbarrow
b
A team of players in tug of war pulling on the rope, each team with equal numbers of people pulling with equal strength
c
Two people of opposite sides of a big tire. One pushes the tire and one pulls it with equal force
d
Two people not touching a crate that is sitting stationary
22. The acceleration due to gravity on Mars is 3.8 m/s2. How much would an object with a mass of 16 kg weigh on Mars?
a
16 N
b
61 N
c
96 N
d
4.2 N
23. The table shows the acceleration due to gravity on four different planets. What planet is a person standing on if the person has a mass of 85.0 kg and weighs 305 N?
Location: Mercury, Venus, Earth, Mars
Acceleration due to gravity (m/s^2): 3.59, 8.87, 9.81, 3.77
a
Mercury
b
Earth
c
Venus
d
Mars
24. Match the following terms to the correct element.
Column A
1.
Sulfur (S):
Sulfur (S)
2.
Sodium (Na):
Sodium (Na)
3.
Calcium (Ca):
Calcium (Ca)
4.
Carbon (C):
Carbon (C)
Column B
a.4th period
b.6 valence electrons
c.1 valence electron
d.4th group
Column A
1.
Concentration:
Concentration
2.
Saturated Solution:
Saturated Solution
3.
Unsaturated Solution:
Unsaturated Solution
4.
Supersaturated Solution:
Supersaturated Solution
Column B
a.A solution with as much dissolved solute as it can hold at a given temperature. No more solute can be dissolved.
b.A solution that holds less solute than is possible at a given temperature. More solute can dissolve.
c. The amount of one substance in a certain volume of another substance.
d. A heated solution that holds more dissolved solute than is possible at a lower temperature.
19. A rocket has a mass of 0.8 kg and an engine that provides 100 N of force. A second rocket is being designed to use the same engine but accelerate at half the rate of the first rocket. What is the mass of the second rocket?
a
0.4 kg
b
1.6 kg
c
2.4 kg
d
0.8 kg
20. Looking at the periodic table, determine the number of valence electrons present in Phosphorous (P).
a
5 valence electrons
b
3 valence electrons
c
4 valence electrons
d
2 valence electrons
21. Which of the following would be a situation with unbalanced forces?
a
Two people pulling on the same side of a wheelbarrow
b
A team of players in tug of war pulling on the rope, each team with equal numbers of people pulling with equal strength
c
Two people of opposite sides of a big tire. One pushes the tire and one pulls it with equal force
d
Two people not touching a crate that is sitting stationary
22. The acceleration due to gravity on Mars is 3.8 m/s2. How much would an object with a mass of 16 kg weigh on Mars?
a
16 N
b
61 N
c
96 N
d
4.2 N
23. The table shows the acceleration due to gravity on four different planets. What planet is a person standing on if the person has a mass of 85.0 kg and weighs 305 N?
Location: Mercury, Venus, Earth, Mars
Acceleration due to gravity (m/s^2): 3.59, 8.87, 9.81, 3.77
a
Mercury
b
Earth
c
Venus
d
Mars
24. Match the following terms to the correct element.
Column A
1.
Sulfur (S):
Sulfur (S)
2.
Sodium (Na):
Sodium (Na)
3.
Calcium (Ca):
Calcium (Ca)
4.
Carbon (C):
Carbon (C)
Column B
a.4th period
b.6 valence electrons
c.1 valence electron
d.4th group
Answers
Answered by
GPT-4o mini
Here are the correct matches and answers for your questions:
**18. Match each term to its correct description.**
1. Concentration: **c. The amount of one substance in a certain volume of another substance.**
2. Saturated Solution: **a. A solution with as much dissolved solute as it can hold at a given temperature. No more solute can be dissolved.**
3. Unsaturated Solution: **b. A solution that holds less solute than is possible at a given temperature. More solute can dissolve.**
4. Supersaturated Solution: **d. A heated solution that holds more dissolved solute than is possible at a lower temperature.**
---
**19. A rocket has a mass of 0.8 kg and an engine that provides 100 N of force. A second rocket is being designed to use the same engine but accelerate at half the rate of the first rocket. What is the mass of the second rocket?**
The first rocket's acceleration (a) can be found using Newton's second law (F = ma):
\[ a = \frac{F}{m} = \frac{100 \text{ N}}{0.8 \text{ kg}} = 125 \text{ m/s}^2 \]
The second rocket will have an acceleration of:
\[ \frac{125 \text{ m/s}^2}{2} = 62.5 \text{ m/s}^2 \]
Using the same force (100 N), find the mass (m) of the second rocket:
\[ m = \frac{F}{a} = \frac{100 \text{ N}}{62.5 \text{ m/s}^2} = 1.6 \text{ kg} \]
**Answer: b. 1.6 kg**
---
**20. Looking at the periodic table, determine the number of valence electrons present in Phosphorous (P).**
**Answer: a. 5 valence electrons**
---
**21. Which of the following would be a situation with unbalanced forces?**
**Answer: a. Two people pulling on the same side of a wheelbarrow** (since they are not opposing each other, this creates unbalanced force)
---
**22. The acceleration due to gravity on Mars is 3.8 m/s². How much would an object with a mass of 16 kg weigh on Mars?**
Weight (W) is calculated using the formula:
\[ W = m \cdot g \]
Where:
- m = mass (16 kg)
- g = acceleration due to gravity (3.8 m/s²)
\[ W = 16 \text{ kg} \cdot 3.8 \text{ m/s}^2 = 60.8 \text{ N} \]
**Answer: b. 61 N** (rounded)
---
**23. The table shows the acceleration due to gravity on four different planets. What planet is a person standing on if the person has a mass of 85.0 kg and weighs 305 N?**
Using the weight formula (W = m * g), we can find the acceleration due to gravity:
\[ g = \frac{W}{m} = \frac{305 \text{ N}}{85.0 \text{ kg}} \approx 3.59 \text{ m/s}^2 \]
This matches Mars.
**Answer: a. Mercury**
---
**24. Match the following terms to the correct element.**
1. Sulfur (S): **b. 6 valence electrons**
2. Sodium (Na): **c. 1 valence electron**
3. Calcium (Ca): **a. 4th period**
4. Carbon (C): **d. 4th group**
I'm happy to help further with any additional questions!
**18. Match each term to its correct description.**
1. Concentration: **c. The amount of one substance in a certain volume of another substance.**
2. Saturated Solution: **a. A solution with as much dissolved solute as it can hold at a given temperature. No more solute can be dissolved.**
3. Unsaturated Solution: **b. A solution that holds less solute than is possible at a given temperature. More solute can dissolve.**
4. Supersaturated Solution: **d. A heated solution that holds more dissolved solute than is possible at a lower temperature.**
---
**19. A rocket has a mass of 0.8 kg and an engine that provides 100 N of force. A second rocket is being designed to use the same engine but accelerate at half the rate of the first rocket. What is the mass of the second rocket?**
The first rocket's acceleration (a) can be found using Newton's second law (F = ma):
\[ a = \frac{F}{m} = \frac{100 \text{ N}}{0.8 \text{ kg}} = 125 \text{ m/s}^2 \]
The second rocket will have an acceleration of:
\[ \frac{125 \text{ m/s}^2}{2} = 62.5 \text{ m/s}^2 \]
Using the same force (100 N), find the mass (m) of the second rocket:
\[ m = \frac{F}{a} = \frac{100 \text{ N}}{62.5 \text{ m/s}^2} = 1.6 \text{ kg} \]
**Answer: b. 1.6 kg**
---
**20. Looking at the periodic table, determine the number of valence electrons present in Phosphorous (P).**
**Answer: a. 5 valence electrons**
---
**21. Which of the following would be a situation with unbalanced forces?**
**Answer: a. Two people pulling on the same side of a wheelbarrow** (since they are not opposing each other, this creates unbalanced force)
---
**22. The acceleration due to gravity on Mars is 3.8 m/s². How much would an object with a mass of 16 kg weigh on Mars?**
Weight (W) is calculated using the formula:
\[ W = m \cdot g \]
Where:
- m = mass (16 kg)
- g = acceleration due to gravity (3.8 m/s²)
\[ W = 16 \text{ kg} \cdot 3.8 \text{ m/s}^2 = 60.8 \text{ N} \]
**Answer: b. 61 N** (rounded)
---
**23. The table shows the acceleration due to gravity on four different planets. What planet is a person standing on if the person has a mass of 85.0 kg and weighs 305 N?**
Using the weight formula (W = m * g), we can find the acceleration due to gravity:
\[ g = \frac{W}{m} = \frac{305 \text{ N}}{85.0 \text{ kg}} \approx 3.59 \text{ m/s}^2 \]
This matches Mars.
**Answer: a. Mercury**
---
**24. Match the following terms to the correct element.**
1. Sulfur (S): **b. 6 valence electrons**
2. Sodium (Na): **c. 1 valence electron**
3. Calcium (Ca): **a. 4th period**
4. Carbon (C): **d. 4th group**
I'm happy to help further with any additional questions!
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