Recent questions in Chemistry

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What makes up a community in an ecosystem?

Kukido asked Oct 15, 2024

by Kukido

7.9k points

2 answers

1 vote

141k views

1,000convert in to scientific notation

Jon Duffy asked Oct 15, 2024

by Jon Duffy

8.0k points

2 answers

3 votes

129k views

According to the reactivity series, will the following reactions take place? Yes or No. a. Cl₂ + 2KI → b. Mg + CuSO₄ → c. Cu + FeCl₃ → d. Pb + AgNO₃ →

Sudonym asked Oct 15, 2024

by Sudonym

8.2k points

1 answer

4 votes

84.0k views

Bond in which the molecules of liquid have an uneven distribution of electrons that leads to electrical attraction between adjacent molecules of opposite polarity

Feinmann asked Oct 15, 2024

by Feinmann

7.6k points

1 answer

1 vote

192k views

Why is the sky blue? Pls help me :DDD

Savage Henry asked Oct 15, 2024

by Savage Henry

8.0k points

2 answers

5 votes

157k views

One way to demonstrate reactivity among the alkaline earth metals, Group 2A, is to observe what happens when they are placed in _____. A) Water B) Oxygen C) Hydrochloric Acid D) Carbon Dioxide

Zouying asked Oct 15, 2024

by Zouying

9.0k points

1 answer

2 votes

80.6k views

How many electrons are contained in a neutral atom of an element with an atomic number of 19 and an atomic mass of 39. 9

Hlg asked Oct 15, 2024

by Hlg

8.4k points

1 answer

5 votes

124k views

To what temperature will a 50.0 g piece of brass raise if it absorbs 6 kilojoules of heat and its specific heat capacity is 0.38 J/g°C? The initial temperature of the brass is 20.0°C.

Mecsco asked Oct 15, 2024

by Mecsco

8.6k points

1 answer

4 votes

216k views

A room has an area of 698 ft2 . Convert this measurement to units of m2

Buzzzzjay asked Oct 15, 2024

by Buzzzzjay

8.1k points

1 answer

2 votes

46.0k views

State and explain: how an increase in pressure would affect the yield of ammonia.

Ratm asked Oct 15, 2024

by Ratm

8.1k points

1 answer

5 votes

122k views

Why does light striking a metal surface eject only electrons and protons

Vansan asked Oct 15, 2024

by Vansan

7.8k points

1 answer

4 votes

141k views

How does a humidifier add molecular water to gas? A. By condensation B. By evaporation C. By filtration D. By compression

Giraffesyo asked Oct 15, 2024

by Giraffesyo

8.0k points

1 answer

1 vote

179k views

Which shape of atoms did he think were made of lead? a. round b. square c. triangle

Finferflu asked Oct 15, 2024

by Finferflu

7.5k points

1 answer

2 votes

55.7k views

The cloud droplets in a cloud are formed by water vapor molecules and: A) protons. B) ions. C) molecules of air. D) condensation nuclei.

Stefs asked Oct 15, 2024

by Stefs

8.0k points

1 answer

5 votes

110k views

Based on their lewis dot diagram which of the following elements is a metal

Public Profile asked Oct 15, 2024

by Public Profile

6.9k points

1 answer

0 votes

49.2k views

A reaction takes place in various steps. The rate constant for first, second, third and fifth steps are respectively. The overall rate constant is given by k1,k2,k3, and k5 k= k2/k3 [K1/k5]¹/² If activation

Nehem asked Oct 15, 2024

by Nehem

8.1k points

1 answer

4 votes

50.8k views

How many kilograms of mercury are there in a barometer that contains 73.2 cm^3 of mercury? The density of mercury is 13.6 g/mL. Which SI conversions will be necessary to convert between the given info?

Isosceleswheel asked Oct 15, 2024

by Isosceleswheel

8.3k points

1 answer

1 vote

72.1k views

A chemist reacted 57.50 grams of sodium metal with an excess amount of chlorine gas. The chemical reaction that occurred is shown: Na + Cl2 → NaCl. If the percentage yield of the reaction is 86%, what

Asicfr asked Oct 15, 2024

by Asicfr

7.9k points

1 answer

4 votes

57.0k views

A 15.0 mL solution of Sr(OH)₂ is neutralized with 31.1 mL of 0.350 M HCl. What is the concentration of the original Sr(OH)₂ solution?

Charles Harring asked Oct 15, 2024

by Charles Harring

7.8k points

1 answer

0 votes

154k views

What is percentage yield?

Sunanda asked Oct 15, 2024

by Sunanda

7.7k points

2 answers

4 votes

48.5k views

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