An unknown substance with a mass of 100 grams absorbs 1000 J while undergoing a temperature increase of 15 C. what is the specific heat capacity of the substance?

A. 0.7 J/g*C

B. 7.0 J / g*C

C. 70 J / g*C

D. 700 J / g*C

100mg magnesium reacts with 20ml of 1.0M hcl

How did the cathode ray tube contribute to the history of atomic structure?

What is triple beam balance?

What are the Group 1A and Group 7A elements examples of? my last wuestion

What does it mean if hydrogen ion concentration and hydroxide ion concentration are equal?

Science does not include beliefs or opinions theories laws conclusions

For which of the following reactions is ΔHrxn equal to ΔHf of the product? You do not need to look up any values to answer this question. Select all that apply.

You have three molecules of glucose (3C^6H^12O^6). How many carbon atoms do you have?

If the arrangement of atoms in a substance changes

A certain element x has four isotopes. 5.845% of x has a mass of 53.93961 amu. 91.75% of x has a mass of 55.93494 amu. 2.123% of x has a mass of 56.93539 amu. 0.2820% of x has a mass of 57.93328 amu. what is the average atomic mass of element x?