How many calories are required to raise the temperature of 75g of water from 20 ˚C to 50˚ C?

A. 1.5x103 cal

B. 2250 cal

C. 2000 cal

D. 75.0 cal

A sentence for desert

Two people must have the same speed and velocity if A) they are walking toward each other at 2 m/s. B) they are walking away from each other at 2 m/s. C) they are jogging side by side at 5 m/s. D) they are jogging to two different destinations.

How many electron cloud energy levels are present in aluminum?

You are trying to determine the volume of the balloon needed to match the density of the air in the lab. You know that if you can get the balloon's density below this value, it will float.

Predict which of butane (C4H10) or propanone (CH3COCH3) has the greater viscosity. Assume that they are both at the same temperature and in their liquid form. a. They have equal viscosities. b. It's impossible to know. c. propanoned. butane

Which of the following locations would most likely have the most fertile soul?

What is an "alloy" in the chapter of metals in chemistry?

Which one of the atoms shown would be most likely to form a cation with a charge of 1?

Name 5 descriptions of a key including mass

How many moles of hydrogen gas will form 1.35 L of a 2.75 M Hcl solution reacts?