In order to determine the mass of an atom, you would add:

protons and electrons

all protons

protons and neutrons

neutrons and electrons

Which answer choices best indicate that a substance has experienced a chemical change?

What are the empirical formula and empirical formula mass for C10H30O10? Empirical formula: Empirical formula mass: es g/mol

What two outcomes can be expected as a result of an overabundance of aquatic plant life?

One mole (mol) of glucose (molecular mass = 180 daltons) is a 180 * 1023 molecules of glucose. B 1 kg of glucose dissolved in 1 l of solution. C the largest amount of glucose that can be dissolved in 1 l of solution. D 180 kilograms of glucose.

You have discovered your excel at community with people and understand whenever a person is being honest. Which career might you choose? 1) management 2) social work 3) interview 4) therapists

Write the isotope symbol for two isotopes of the same element. What makes the isotopes different? How are they similar?

According to the periodic table, which element has an atomic number of 40? a. u b. ca c. zr d. np

3. Which word best fits with the Earth's day and night cycle a. Revolution b. Rotation C Orbit d. Axis

What causes temperatures in the summer to be higher than temperatures in the winter? A. The greenhouse effect, which raises temperatures on Earth, takes place during the summer months only. B.

What naturally forms an anion?