a car is traveling at a speed of 55 mph the speed increased to 75 mph if the time needed to hange its speed is 4 seconds whats the acceleration?

How many atoms are in 36.1 g of boron

Spaghetti sauce can be high in sodium. what is a good guideline for mg of sodium per half cup serving? A. Less than 1 mg B. Less than 800 mg C. Less than 700 mg D. Less than 400 mg

The normal temperature range of the liquid phase of pure water is 0 degrees Celsius to 100 degrees Celsius. Which of the following aqueous solutions has the largest liquid phase range? a. 0.1M C2H5OH b. 0.1 M KBr c. 0.2 M MgBr2 d. 0.2 M MgSO4

When air expands what type of energy increases?

Which of the following describes a base? Select all that apply. A. tastes sour B. tastes bitter C. highly reactive D. slippery feel

How to conduct electricity with light bulb and battery

A cup can hold 50 ml of water and has a mass of 25g. If each penny weighs 2g, how many pennies can it hold before it sinks in fresh water? Explain how you got your answer.

How many moles of FeO are produced if 8 moles of CuFeS, are consumed?

Will mark as Brainliest. How much energy is released when 16.5 g of steam is condensed at 100 degrees Celsius? -37290 J -3729 J -136 J -136 kJ

What is the mole fraction, x, of solute and the molality for an aqueous solution that is 16.0 % NaOH by mass