Ở 30⁰C thể tích của một lượng khí là 8 lít thể tích của lượng khí đó ở nhiệt độ 303 độ C khi áp suất không đổi là

At very high pressures, gases become and will eventually a) more dense; become hotter b) more dense; change to a liquid or solid c) less dense; combust d) less dense; turn into a liquid

How many neutrons does element x if it’s atomic number is 28 and its mass number is 87

Abaseball is thrown from the outfield toward the catcher. when the ball reaches its highest point, which statement is true? (a)its velocity is not zero, but its acceleration is zero. (b) its velocity and its acceleration are both zero. (c) its velocity is perpendicular to its acceleration. (d) its acceleration depends on the angle at which the ball was thrown. (e) none of the above statements are true.