christineachord christineachord

08-12-2021
Physics

contestada

Are these a Chemical or Physical Change??

1. Sodium Bicarbonate breaks down into sodium carbonate and water.
A. Chemical Change
B. Physical Change

2. Mercury is cooled until it is in the solid state.
A. Chemical Change
B. Physical Change

Respuesta :

carmen469 carmen469

08-12-2021

1. chemical change, as it is the breaking of bonds

2. physical change, as it is a change in temperature

Answer Link

Otras preguntas

Calculate the density of an object with a mass of 30g and volume of 6cm^3

Name a lake or river in illinois that shares a name with another place or famous person

A student hypothesizes that a goldfish will be more active in a bowl that has red gravel than in a bowl with grey gravel. To test this hypothesis, the student p

Copper exists in two naturally occurring isotopes. The average atomic weight of copper is 63.546 amu. If 69.15% exists as 63cu with an atomic mass of 62.92, the

When a store decides where and to whom their products will go to reach the consumer, it is using the _____ marketing function. distribution promotion marketing

Jeremy had 10 stamps in his collection. Chris has 3 times as many stamps. How many stamps does Chris have ??

You have already earned $12 for your school by selling a pie you made at a bake sale. You will earn $3 more for each additional brownie you sell. Which algebrai

What is the only metal that is a liquid at room temperature?

Find the slope of the line through (–9, –10) and (–2, –5).

The metric system is based on powers of what number?