Atoms of different elements have a different mass and volume. why is the statement true? atoms of all elements have a spherical shape. atoms have protons, neutrons, and electrons. atoms lack the same number of electrons. atoms have unique properties that define them.

Which real-world scenarios below represent physical and chemical changes? -running a car -exploding fireworks -mixing water and powdered drink mix -combining oil and vinegar to make salad dressing -taking aspirin for a headache -diluting bleach with water-digesting dinner-spreading peanut butter on bread

Sarah wants to know where in her garden chamomile would grow the best. she thinks chamomile will grow best in the corner of the garden that gets the most sunlight. to test her hypothesis, she decides to plant several groups of chamomile in her garden as an experiment. which of the following variables will sarah need to measure to know which group of plants grew best? a. the location of the plants b. the type of plants c. the height of the plants d. the amount of water she gives the plants

Acamcorder has a power rating of 17 watts. if the output voltage from its battery is 7 volts, what current does it use?units: