Questions by Vaaljan

Questions by Vaaljan

Which statement describes the cyclic nature of seafloor spreading? A. Continents are created B. New oceanic crust is created C. Volcanoes erupt and remove crust D. The old crust gets thicker at subduction

asked Dec 5, 2023

2 answers

0 votes

411k views

A 1.0-kg block of aluminum is at a temperature of 50°C. How much thermal energy will it lose when its temperature is reduced by half? The specific heat of aluminum is 897 J/(kg •K).

asked Aug 18, 2022

1 answer

5 votes

530k views

A neutral oxygen atom has 8 protons and 8 electrons. It gains 2 electrons when it chemically combines with magnesium to form magnesium oxide (MgO). What is the charge of oxygen in magnesium oxide?

asked Mar 28, 2022

1 answer

8 votes

381k views

Find the lateral area of this square based pyramid. 10in 5 in [ ? ]in?

asked Jan 24, 2022

2 answers

9 votes

498k views

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