What is the mass number of an atom with 3 protons and 4 neutrons and 3 electrons

Why do all humans have similar features? A. They have the same number and kinds of chromosomes. B. They have identical alleles. C. They have different alleles. D. Their genes do not allow for any variation.

If you were to describe the shape of the Milky Way, what term would you use? A. Irregular galaxy B. Elliptical galaxy C. Barred-spiral galaxy D. Large clustered galaxy

If some animals reproduce so easily and quickly, why can't we increase the numbers of endangered species like the giant panda just as easily? A. They have short lifespans and many offspring B. It is easy to do this, but no one has put in the C.

Which economic goal does a society consider when deciding the best way to distribute its wealth?

Which of the following is NOT one of the base pairs of DNA? a. guanine b. cytosine c. thymine d. adrenaline

Identify the property of magma that causes it to be forced upward towards earth's surface.

Classify each of these compounds as a Brønsted-Lowry acid, a Brønsted-Lowry base, or neither. Drag each item to the appropriate bin. are these a Brønsted-Lowry acid or a Brønsted-Lowry base H2SO4, HNO2, (CH3) 3N, C3H7NH2, HF, NH3, NaBr, CCl4

If you dissolve sugar into water in a small jar, will the result be a mixture, a solution or both? Explain.

Convert the following energy units. 635 kJ to J

What is the element K2SO4 and is it ionic, covalent or polyatomic