What are minerals called that carry a positive or negative charge and must be carefully balanced for the body to function in a healthy state?

Walter gets a paper back in lab with "-2.75% error" written on it. He found the mass of an object to be 100.7 grams. What should he have found as the mass of the object?

A 2100 kg car is speeding up at 10 m/s2 down a 500m on-ramp to the highway. What is the force exerted on the car?

In order to be considered science, something must be

Describe gas production

Find the velocity of a plane that traveled 3,000 miles west in 5 hours. miles per hour

The smallest unit of an element is a blank

How many sodium atoms will create an ionic bond with sulfur?

Rank the elements from smallest to largest electronegativity negativity (smallest at top) 1. N 2. P 3. As 4. Sb

A bicyclist pedaling up a Hill. What type of energy potential or kinetic?

What improvements have been made in modern farming? Select all that apply. 1. machines can do more work over less time 2. better seeds sprout and grow much more quickly 3. trains can transport food over long distances faster 4.