Chemistry » Page 59

Chemistry

Quincy Mcdaniel

Which of the following elements is classified as a nonmetal

Xe

Ca

Sb

Cu

Answer Answers (1)

Chemistry

Giada Stewart

The average rate of disappearance of ozone in the reaction 2o3 (g) → 3o2 (g) is found to be 7.25*10-3 atm over a certain interval of time. what is the rate of appearance of o2 during this interval?

Answer Answers (1)

Chemistry

Haylee Mcintyre

The magnitude of an earthquake can range from less than 1 to at least

Answer Answers (1)

Chemistry

Damion Lopez

What disease is spread through warm climates?

Answer Answers (1)

Chemistry

Gregory Pham

What is the mass of strontium chloride that reacts with 300.0 g of sulfuric acid?

Answer Answers (1)

Chemistry

Brady Gross

The reaction between elemental phosphorus p4 (s) and o2 (g) to make p4o10 (s) :

Answer Answers (1)

Chemistry

Sammy Pace

What are the divisions within a shell called

Answer Answers (1)

Chemistry

Haiden

Which of the following is a source of water pollution?

Answer Answers (2)

Chemistry

Enzo

The empirical formula for ethane is CH3. The molar mass of propane is 30.08 grams per mole. Determine the molecular formula of ethane.

Answer Answers (1)

Chemistry

Lydia Dorsey

Liquids take the shape of their

Answer Answers (1)

Chemistry

Joshua Coffey

How many liters of 15.0 molar NaOH stock solution will be needed to make 20.0 liters of a 1.2 molar NaOH solution? Show the work used to solve this problem.

Answer Answers (1)

Chemistry

Gummi Bear

1. Which of these show a diatomic element?

CO

H₂

He

SO₂

2. Which of these substances is an element?

Chlorine

Ice

Methane

Sodium chloride

3. When the elements lead and bromine combine together, the name of the substance formed is called ...

Lead bromate

Lead bromide

Lead bromite

Lead bromium

Answer Answers (1)

Chemistry

Cash Simon

A liquid is placed in an evacuated, sealed flask. When will this closed system reach dynamic equilibrium?

Answer Answers (2)

Chemistry

Nyasia Frank

How much heat is required to decompose 25.5 grams of NaHCO3? 2NaHCO3 (s) + 129 kJ 2Na2CO3 (s) + H2O (

g. + CO2 (

g.

Answer Answers (1)

Chemistry

Serena

An element is identified by:

A. Its number of protons

B. the atomic mass

C. The type of charge

D. its number of isotopes

Answer Answers (1)