how many grams of sodium silicate would you need to prepare 350.0g of a 25% sodium silicate (m/m) solution

The clouds are grey and ground is wet. a quantitative b qualitative

Which of these would be caused by a chemical change? a) the formation of lava. b) sedimantary rock layering over time. c) metamorphic rock forming from igneous. d) metamorphic rock eroding to form sedimentary rock.

Frictional forces acting on an object are often converted into energy, which causes the temperature of the object to rise slightly.