Warm butter- liquid
Liquid nitrogen- gas
paper- solid
neon gas- gas
ice- solid
        
             
        
        
        
Answer:
.156   M 
Explanation:
diluting 25 to 100 cuts the M to 1/4 of the original 
1/4 * .625 = .15625
 
        
             
        
        
        
Answer:
Hydroxyl
Explanation:
A hydroxyl group is a functional group that attaches to some molecules containing an oxygen and hydrogen atom, bonded together. Also spelled hydroxy, this functional group provides important functions to both alcohols and carboxylic acids.
 
        
             
        
        
        
Answer:
Jose and Sarah are running in the cross country meet. Their skeletal and muscular systems work to move them through the course. As they run, they breathe faster and harder and their heart rate increases.
A.work together
Explanation:This should help:)
 
        
             
        
        
        
Answer: (22.98977 g Na/mol) + (1.007947 g H/mol) + (12.01078 g C/mol) + ((15.99943 g O/mol) x 3) = 84.0067 g NaHCO3/mol 
9. 
(1.20 g NaHCO3) / (84.0067 g NaHCO3/mol) = 0.0143 mol NaHCO3 
10. 
Supposing the question is asking about "how many moles" of CO2. And supposing the reaction to be something like: 
NaHCO3 + H{+} = Na{+} + H2O + CO2 
(0.0143 mol NaHCO3) x (1 mol CO2 / 1 mol NaHCO3) = 0.0143 mol CO2 in theory 
11. 
n = PV / RT = (1 atm) x (0.250 L) / ((0.0821 L atm/K mol) x (298 K)) = 0.0102 mol CO2 
12. 
(0.0143 mol - 0.0102 mol) / (0.0143 mol) = 0.287 = 28.7%
Explanation: