Study23456 Study23456

26-02-2021
Chemistry

contestada

What were the two primary gases in Earth's early atmosphere?

Respuesta :

zolafatrat zolafatrat

26-02-2021

Hydrogen and helium

Answer Link

Otras preguntas

Marla is a macroeconomist who believes that monetary policy is not very effective in changing aggregate demand, output, and employment. marla is most likely a:_

You order three sandwiches and a drink. The drink costs $1.75. You pay 8% sales tax and leave a $5 tip. You pay a total of $20.66. How much does one sandwich co

In nucleophilic aromatic substitution, the attacking species (the nucleophile) necessarily is:__________

what is the total magnification if you are using the scanning objective? _______ high power objective ? ________ oil immersion objective? _________

The price of coffee increases from $5 to $6, and the quantity demanded of tea increases from 40 thousand units to 50,000 units. what is the cross-price elastici

In labor supply, the change in people's choices when they have more income is called the ______ effect.

When collecting a gas over water, the gas is always a mixture of the gas collected and water vapor. a) true b) false

The nurse is caring for a 60-year-old client with an improper bowel movement regimen. which is the most appropriate method for the nurse to use in teaching this

Find the valley whose trace is highlighted in green. is this valley glacial or river-carved in origin?

Reinforcement and punishment are types of ______ . a. consequences b. conditioned stimuli c. fields of study d. languages