One mole of an element contains which of the following?

A. 6.02 atoms

B. 6.02 x 1023 atoms

C. 6.02 x 1023 grams

D. 12 atoms

Aerial fireworks contain gunpowder and chemicals that produce colors. What elements would be responsible for producing red, green, and yellow colors?

Which of these is an example of a chemical change? A. feeling ice melt on your skin B. leaving cheese out to get moldy C. smelling sprayed perfume D. crushing ice with a hammer

Why might nuclear fusion be a better source of energy on earth than nuclear fission?

Andrew drew this diagram to show a certain type of weather front. Which type of front is it? cold warm A. cold B. occluded C. stationary D. warm Reset Next

How many moles of oxygen are in 25.45 g of caco3?

Which of the following is the correct name for the compound hgs? mercury sulfide mercury (i) sulfide mercury (ii) sulfide mercury monosulfide?

Which of these has the most impact on the apparent brightness of a star seen from Earth? Gravitational pull, temperature of star, distance from earth, earths orbital pattern

What are 6 abiotic factos from finding nemo?

Which of the following is an element? a. carbon monoxide gas (co) b. magnesium chloride salt (mgcl) c. hydrochloric acid (hcl) d. zinc metal (zn)

Describe the formation of an aqueous KI solution when KI dissolves in water