When balancing an equation, you can

a. alter subscripts

b. change the identities of the products

c. change the identities of the reactants

d. write in coefficients

Describe hоw temperature changes from the interior of the Sun through its atmosphere layers

An electric current produces a magnetic field. a. True b. False

True or false, water moves from Earth's surface to the atmosphere as precipitation.

Which of the following has more inertia: (a) a rubber ball and a stone of the same size? (b) a bicycle and a train? (c) a five-rupees coin and a one-rupee coin?

Which of the following is true of greenhouse gases? A. They trap energy in the atmosphere. B. They are all naturally occurring. C. They exist in fixed quantities. D. They reflect incoming solar radiation.

If you were going to describe the relationship between current, voltage, and power, you could say:? A "If there is a decrease in power, there must have been an increase in either current or voltage.

Green light shines through a 130-mm-diameter hole and is observed on a screen. if the hole diameter is increased by 20%, does the circular spot of light on the screen decrease in diameter, increase in diameter, or stay the same?

Which forces do not require contact between objects in order to exert a push or pull? select all that apply gravitational force between the earth and an object tension force between an object and a rope magnetic force between two magnets frictional

Provides most of the energy used in the world today. Question 4 options: wind fossil fuel moving water sunlight

How does an atom of chlorine-37 become a chloride ion with a - 1 charge? 17 35.45 O A. The atom gains 1 electron, to make a total of 21. O B. The atom gains 1 electron, to make a total of 18. O C. The atom loses 1 proton, to make a total of 36. O D.