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Grade 10 Chemistry Questions asked by Filo students

Views: 5,388

9. How many octahedral voids are there in 1 mole of a compound having a cubic closed packed structure?

Topic:

Solid State

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Views: 16,964

Use the data table to answer the following question. Which substance has the strongest intermolecular forces? A Substance 2 B Substance 3 C. Substance 4 D Substance 1

Topic:

Bonding and Chemical Reactions

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Views: 5,472

Name: - Identify the appropriate experimental set-up for filtration, distillation, - Develop and justify a sequence of sepain why it's appropriate. clabstances from a heterogence of separation techniques to separate pure its properties world examples of separation techniques Vhat is solubility?

Topic:

Structure and Properties of Matter

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Views: 5,503

Explain what is wrong with this balanced chemical equation:

2 Zn_{(se} + 4 HCl_{(ecl)} \to 2 ZnCl_{2 (eq)} + 2 H_{2 (a)}

Topic:

Bonding and Chemical Reactions

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Views: 5,067

Complete the following:

For each of the ions listed, identify the total number of electrons for each
$Al^{+ 3}$
$Fe^{+ 3}$
$Mg^{- 2}$
$Sn^{+ 2}$
$Co^{- 2}$
$Co^{- 3}$

Topic:

The Chemistry of Abiotic Systems & Energy of Chemical Systems

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Name: PART 2: Short Answer (30 PTS). Read and answer each question carefully and completely. Base your answers to questions 22 through 24 on the information below and on your knowledge of chemistry. Cylinder A and cylinder B are sealed, rigid cylinders with movable pistons. Each cylinder contains 500 milliliters of a gas sample at 101.3 kPa and 298 K. Cylinder A contains H2(g) and cylinder B contains N2(g). The diagrams below represent these two cylinders. Cylinder A Cylinder B H₂(g) The gas ir cylinder A 1073 JP because 15 remain the same. 22 State a change in temperature and a change in pressure that will cause the gas in cylinder A to behave more like an ideal gas. (6 pts) MOLE Movable pistort temperature will be 298K. And the pressure both will have the same amount of energy will +6 23. Explain, in terms of collisions between gas molecules and the walls of the container, why pushing the movable piston farther into cylinder B at constant temperature would increase the pressure of the N, gas. (6 pts) would +1298 Date: 101.3 X50 Increase Prore- 50ML N₂(g) +1 tess 101.3x50x798 P₁ = 101.3 xPa Pz 101.3 PA VI 2 V₁ Ti 298 12 (248 1569310 = the 24. Calculate the volume of the gas in cylinder B at STP. Include given values, formula and units. (6 pts) Period: Space pessore because the 101.3 XV2 298 TV₂ = 3m²) +1 MORE QUESTIONS ON BACK PAGE So 101.3 x2 = 298 301874 We THOSE

Topic:

Structure and Properties of Matter

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Views: 5,217

In a laboratory activity, the volume of helium gas in a rigid cylinder with a movable piston is varied by changing the temperature of the gas. The gas starts at a temperature of

300 K

mL

. The activity is done at a constant pressure of

100 kPa

. 25. Determine the new temperature of the He(g) at a volume of

15.0 mL

. Include given values, formula and units. (

6 pts

11 \frac{10}{300} = \frac{3}{15} \frac{300}{150} = 2

Topic:

Structure and Properties of Matter

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Views: 5,419

In a single displacement reaction between

AlCl_{3}

O_{2}

, which ion would oxygen replace and what would be the resulting compound?

It would replace chlorine and the new compound would be $Al_{2} O_{3}$ .
It would replace chlorine and the new compound would be $Al_{3} O_{2}$ .
It would replace aluminum and the new compound would be $O_{3} Cl_{2}$ .
It would replace aluminum and the new compound would be $O_{2} Cl_{3}$ .

Topic:

Bonding and Chemical Reactions

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Views: 5,936

What are the missing coefficients for the skeleton equation below?

Cr + Fe (NO_{3})_{2} \dots Fe + Cr (NO_{3})_{3}

4, 6, 6, 2

2, 3, 2, 3

2, 3, 3, 2

2, 3, 1, 2

1, 3, 3, 1

Topic:

Bonding and Chemical Reactions

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Question 10

Views: 5,726

In order for the reaction

Cu + 2 AgNO_{3} \to Cu (NO_{3})_{2} + 2 Ag

to occur, which of the following must be true?

Cu must be above $Ag$ in the activity series of metals.
Cu must be above $H$ in the activity series of metals.
$Ag$ must be above $Cu$ in the activity series of metals.
Ag must be above $H$ in the activity series of metals.

Topic:

Bonding and Chemical Reactions

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Question 11

Views: 5,185

If you rewrite the following word equation as a balanced chemical equation, what will the coefficient and symbol for iodine be? bromine + potassium iodide

\dots

potassium bromide + iodine

2 I^{- 1}

I_{2}

2 I_{2}

Topic:

Bonding and Chemical Reactions

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Question 12

Views: 5,294

Select the correct answer. About how long does it take for the reaction to reach equilibrium in this concentration versus time graph?

$0.5$ second
$1.5$ seconds
$2.5$ seconds
$4.5$ seconds

Topic:

Structure and Properties of Matter

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Question 13

Views: 5,928

Interpreting Data Displays Benchmark of Focus: MA.912.DP.1.2 Name Adel oth Syleedi Period 4 Date

12/7/202

1. Chris asked students at his school which color (red, green, blue or yellow) they would choose for the accent wall color in the new school library. He displayed his results in the bar graph at right.

Why could he not display the results in a histogram?
How many students did he survey in all?
What fraction of students chose blue? Simplify, if necessary.

Topic:

The Chemistry of Abiotic Systems & Energy of Chemical Systems

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Question 14

Views: 5,116

Several students were asked to name their favorite type of food. The result circle graph.

What was the ratio of students who preferred Mexica Fororite Thpo af food preferred Chinese food?
Nine students preferred ltalian food. About how ma in the survey?
Use your answer from part b. About how many stu food?
Five hundred students will be attending a leadersh grar pict about how many would choose

Topic:

The Chemistry of Abiotic Systems & Energy of Chemical Systems

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Question 15

Views: 5,584

Which part of an atom is most directly involved in chemical bonds?

Neutrons
Electrons
Protons
Quarks

Topic:

The Chemistry of Abiotic Systems & Energy of Chemical Systems

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Question 16

Views: 5,214

How many electrons in an S orbital?

2
4
6
8

Topic:

The Chemistry of Abiotic Systems & Energy of Chemical Systems

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Question 17

Views: 5,665

How many cubic centimeters are in a liter?

1
10
100
1000

Topic:

The Chemistry of Abiotic Systems & Energy of Chemical Systems

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Question 18

Views: 5,632

What is the temperature at which water freezes in Kelvin?

0
32
100
273

Topic:

The Chemistry of Abiotic Systems & Energy of Chemical Systems

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Question 19

Views: 5,571

The litmus paper turned red. So the compound is ?

Acid
Base
Salt

Topic:

The Chemistry of Abiotic Systems & Energy of Chemical Systems

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Question 20

Views: 5,172

Phenolphthalein turned pink so the compound is ??

Acid
Base
Salt

Topic:

The Chemistry of Abiotic Systems & Energy of Chemical Systems

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