45 2.0

2. How many joules of heat are needed to raise the temperature of 048 kg of aluminum from 21°C to

94°C, if the specific heat of aluminum is 900 J/g °C?

What is the most complex scientific formula?

If a journalist has to cut some information from an article, the best place to cut the article is A. in the lead sentence. B. in the background information. C. in the middle of the article. D. at the end of the article.

What volume of a 0.25 M solution can be made using 0.75 moles of Ca (OH) 2

A science class did an experiment in which two substances were mixed. After 15 minutes, everything looks the same, but the students noticed an odor coming from the experiment. What does this likely indicate? a.) a liquid was formed. b.

If 100g of Au-198 decays to 6.25g in 10.8 days, what is the Half-Life of Au-198. Use Ae = Ao (.5) ^ t / t1/2

What element has the electron arrangement 2,8,4?

If you get pregnant in Dec how long will it take for u to get to second trimester

Name the following compound HClO

Aluminum and Oxygen gas will react to form Aluminum Oxide (Al2O3). When the equation is balanced, How many moles of Al2O3 are formed when a mixture of 0.36 moles Al is ignited? a. 0.12 b. 0.18 c. 0.28 d. 0.46

Which state of the West produces the widest varieties of fruits, vegetables, and nuts? A) California B) Colorado C) Wyoming D) Alaska