Students measuring the mass of a rock record 6.759 g, 6.786 g, 6.812 g, and 6.779 g. Which other measurement of the block's mass would be most precise?

A. 6.702 g

B. 6.781 g

C. 6.605 g

D. 6.858 g

How many aluminum atoms are in 2.20 g of aluminum?

One macromolecule isolated from an organism has a formula of C22H24O2 and another has a formula of C22H24O22. Based on the formulas alone, speculate and justify the likely identity of each macromolecule.

Explain how I rotating electric fan might be the model of an Adam

The dopamine molecule has an intermediate hydrophobicity. Edit the dopamine molecule so that it is more hydrophobic.

The electrons involved in forming chemical bonds are the what electrons

Are erasers made from rubber?

The specific heat of nickel is 0.44 J/g*⁰C. How much energy needed to change the temperature of 95.4g of nickel from 32⁰C to 22⁰C. Is the energy absorbed or released?

What compound do the ions Al3 + and O2 - form

Draw every stereoisomer for 1,2-difluoro-1,2-dimethylcyclopentane. use wedge-and-dash bonds for the substituent groups, and be sure that they are drawn on the outside of the ring, adjacent to each other.

Suppose an ice cube weighing 36.0 g at a temperature of 10°C is placed in 360 g water at a temperature of 20°C. Calculate the temperature after thermal equilibrium is reached, assuming no heat loss to the surroundings.