Jalen Warren

This page lists questions and answers that were posted by visitors named Jalen Warren.

Questions

The following questions were asked by visitors named Jalen Warren.

What is the major different between the particles in a liquid and a gas of the same substance at the same temperature?

What makes a compound an acid?

What makes a compound a base?

Which best describes solubility?

On the pH scale, a pH of is neutral.

Which state of matter would have the highest kinetic energy?

Which line from the story does NOT support the idea that Jillian is upset about being unable to play basketball due to her broken arm?

Al + O2 → Al2O3

MgO + CaS → MgS + CaO

Mg + O2 → MgO

MgO + CaS → MgS + CaO fill in the blanks?

2 H2O → 2 H2 + O2

2 C2H6 + 7 O2 → 4 CO2

2 Na + Cl2 → 2 NaCl

4 AlBr3 + 3 O2 → 2 Al2O3 + 6 Br2

KCl + NaI → KI + NaCl

When an ice cube melts in your hand, it changes from a solid to a liquid. H2O (s) → H2O (l) This is an example of ________________ reaction, because heat is _____________ the system.

A triangle with sides 10, 24, and 25 is a right triangle

Balance the following the chemical equation: _ Mg + _ F2 → _ MgF2

Balance the following the chemical equation: _ Na2O + _ CaBr2 → _ NaBr + _ CaO

alance the following the chemical equation: C2H6 + O2 → CO2 + H2O

Fire is an example of ________________ reaction, because heat is _____________ the system

If 40g of Sodium (Na) reacts with 60g of Chlorine (Cl2), what is the mass of the products?

A bath bomb is a solid sphere made of a base. When it you add it to a bath tub, it mixes with the water to create a soapy solution. If you want it to completely dissolve a large bath bomb, what might you do?

One molecule of Iodine (I2) and two molecules of potassium (NaCl) combine in a reaction. How many atoms are in the products?

Which statement comparing ionic and covalent bonds is correct? a More electrons are transferred from covalent bonds than ionic bonds. b The difference between electronegativities is greater in covalent bonds than for atoms in ionic bonds. c Covalent bonds...

Which statement correctly compares synthesis and decomposition reactions? a Synthesis and decomposition reactions are opposites of each other. Synthesis reactions are in the form A + B → AB, while decomposition reactions are in the form AB → A + B. b Synt...

Which event is an example of an exothermic reaction? a combustion b melting ice c decomposition d evaporation

This chemical reaction is balanced. True False

Scientists have been able to develop a nuclear fusion plant to generate energy. True False

225/88 Ra 0/-1 e + /89 Ac

A stable nucleus will decay, or emit, particles. True False

Relatively large particle

On a position versus time graph, if an object is not moving, what will the shape of this graph be? a Horizontal b Vertical c Diagonal up d Diagonal down

When forces are in opposite directions, they subtract from one another True False

When two forces are in opposite directions, and they are the exact same magnitude, the forces will a subtract from each other b cancel out c go on infinitely d eventually reach equilibrium

In the picture above, which of the following is true a both are examples of scalar b A. represents vector and B. represents scalar c both are examples of vectors d A. represents scalar and B. represents vector

Choose all of the following that represent scalars a volume b time c acceleration d mass e velocity f position

When same vectors are in the same direction they add. When same vectors are in opposite directions, they a divide b subtract c multiply d also add

n the picture above, calculate the Net force. Choose the correct answer in order from top to bottom a 0 N, 20N, 2N b 20N, 2N, 0N c 0N, 2N, 20N

Acceration is a change in motion over time True False

Using the graph, answer the follwing question: When did the object reach 12 m beyond the starting point? a 5 sec b 4sec c 3 sec d not enough data

Using the graph above, answer the following question: Where was the object after 2 seconds?

Which of the following is an example of Newton's First Law? a A stationary book on the table must be picked up in order for it to move b A rocket made with lighter composite materials will accelerate faster than a heavier one c A baseball hits collides wi...

Which statement correctly compares his motion during the first 10 minutes to his motion during the last 10 minutes? a He is speeding up during the first 10 minutes and slowing down during the last 10 minutes. b He is going faster and in a different direct...

Which statement correctly classifies distance and displacement? a Distance is a scalar quantity, and displacement is a vector quantity. b Both distance and displacement are vector quantities. c Distance is a vector quantity, and displacement is a scalar q...

On a position vs. time graph, which feature would represent motion in the negative direction over time? a a downward-sloping line segment b an upward-sloping line segment c a vertical line segment d a horizontal line segment

Which statement fairly compares segment 2 and segment 3? a These represent different periods of time, and the force during segment 2 is different than the force during segment 3. b These represent equal periods of time, but the force during segment 2 is d...

Which quantity or quantities is/are increasing for the object represented by Line B? a velocity only b velocity, position, and acceleration c velocity and acceleration d velocity and position

How is velocity calculated? a Displacement over time b Acceleration over time c Distance over time d Force over time

Choose the three ways to cause an acceleration of an object. a Slowing down b Speeding up c Displacement d Change in direction

A scale drawing of a spider is 5 centimeters long. The actual length of the spider is 4 inches. If one of the spiders legs is 4 cm in the drawing how long is the actual leg?

Solve for x. Show ALL of your work 96 = x2−4

Mr. Clark leaned a ladder against a wall. When placed, the ladder reaches the top of the wall. If the ladder is 35 feet long, and Mr. Allen places the ladder 28 feet from the wall, how tall is the wall? Use the picture below to help you. Show ALL of your...

A triangle has sides of 24in, 45in, 51in. Is the triangle a right triangle?

Which of the following shows an example of two irrational numbers being multiplied to get a rational number? Responses 3×9 3 times 9 0×5√ 0 times square root of 5 2√ ×8√ 2√ ×8√ 2√×3√

Which number is a perfect square Responses 2 2 8 8 16 16 20 20

Answers

The following answers were posted by visitors named Jalen Warren.

Ming was planning a trip to Western Samoa. Before going, she did some research and learned that the exchange rate is 8 Tala for $2.75. How many Tala would she get if she exchanged $50? Responses

To find the estimate of 68−−√ what two square roots should you use?

To find the estimate of 68−−√ what two square roots should you use? Responses

Which of these is a pythagorean triple? Responses 9, 40, 41 9, 40, 41 7, 26, 89 7, 26, 89 1, 2, 3 1, 2, 3 36, 48, 62