rockstarreighan rockstarreighan

Today at 11:29 AM
Chemistry

Answered

Radon-22 has a half –life of approximately 6 days. If you begin with a sample containing 40 grams of radon, how many grams of radon will be left after 24 days?

Answer :

adrianchen1029 adrianchen1029

Today at 11:34 AM

2.5 grams: 40/2 = 20 (Day 6), 20/2 = 10 (Day 12), 10/2 = 5 (Day 18), 5/2 = 2.5 (Day 24)

Answer Link

Other Questions

Please help me I don't understand this

9•7÷3•2-3•(-3)+7-(-30)

[ 6 (285 × 26 + 10^) - ( 36 × 4 - 5) ]

What’s the answer. Please respond fast

explanatory terms are often enclosed by

What do you understand by supply base optimization?

A certain rumor was current. The president was said to be dangerously ill. he was quite well. he appeared at a party meeting. he assured the anxious party worke

(iv) x = sin 0, y = tan o

पूर्णाक-प्रोजेक्टवर्क: बच्चे वर्तमान साल 2020 का कैलेण्डर देखकर निम्नांकित सारणी को पूरा करे तथा किये गये प्रश्नों उत्तरहिन्दी माह का नामअंग्रेजी महीनों के नामम

internet email system based on

Xavier works at the local convenience store and gets paid $8 an hour with a $25 base pay.How many hours does she need to work to make at least $105 (inequality

how do i solve for the variables

Breads and other whole grain foods are composed of very large polysaccharide molecules which contain hydrogen, oxygen, and which other element? A) carbon B) ir

Choose the graph which represents the solution to the inequality. 3 - 2x ≥ -17

what is the function of the ICD-10-CM coding guidelines and how they affect code assignment?

Some sedimentary rocks have ripple marks and mud cracks. These features are clues to the .

Help please 12 point

Equivalent expression to 647*39

What is true of a molecule

In excerpt one, what is the goal of Carlisle’s Indian school