1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
valentinak56 [21]
3 years ago
15

Which of the following chemical formulas represents a common acid?

Chemistry
1 answer:
wariber [46]3 years ago
5 0
HCI is one of the most common acids out of the following
You might be interested in
Assume that a daily diet of 2000 calories (i.e. 8.37 x 106 J) is converted completely to body heat.
slava [35]

Answer:

(a) the mass of the water is 3704 g

(b) the mass of the water is 199, 285.7 g

Explanation:

Given;

Quantity of heat, H= 8.37 x 10⁶ J

Part (a) mass of water (as sweat) need to evaporate to cool that person off

Latent heat of vaporization of water, Lvap. = 2.26 x 10⁶ J/kg

H = m x Lvap.

m = \frac{H}{L._{vap}} =\frac{8.37 * 10^6.J}{2.26*10^6\ \frac{J}{kg}} = 3.704 \ kg

mass in gram ⇒ 3.704 kg x 1000g = 3704 g

Part (b) quantity of water raised from 25.0 °C to 35.0 °C by 8.37 x 10⁶ J

specific heat capacity of water, C, 4200 J/kg.°C

H = mcΔθ

where;

Δθ is the change in temperature = 35 - 25 = 10°C

m =\frac{H}{c* \delta \theta} = \frac{8.37 *10^6}{4200*10} = 199.2857 kg

mass in gram ⇒ 199.2857 kg x 1000 g = 199285.7 g

5 0
3 years ago
About 75% of living matter is made up of which two essential chemicals?
lions [1.4K]

calcium,phosphorus,potassium,and sulfer

3 0
3 years ago
Read 2 more answers
Which of the following shows the 3 main jobs of a cell?
skad [1K]
C is the answer hope this helps
8 0
2 years ago
The Law of Superposition states
lora16 [44]
In an undisturbed sequence of layers of rocks, the younger layers lie on top of the older layers
8 0
2 years ago
Which linkages in starch and triglycerides result from condensation reactions? glycosidic bonds in starch and ester bonds in tri
bogdanovich [222]
Glycosidic bonds in starch and ester bonds in triglycerides. The glycosidic bond is considered to be the covalent synthetic bonds that connection ring-molded sugar particles to different atoms. The frame by a buildup response between a liquor or amine of one particle and the anomeric carbon of the sugar, and hence, might be O-connected or N-connected.
7 0
3 years ago
Other questions:
  • What metalic element is sometimes used in flarres and flashbulbs
    7·1 answer
  • Which of the following methods uses the decay of atomic particles in an object to find its exact age? A. Fossil dating B. Geolog
    11·1 answer
  • Match the element with its number of valence electrons. Match Term Definition: Helium Aluminum Fluorine Sodium A) 1 B) 2 C) 3 D)
    9·2 answers
  • 1. Displacement vectors of 10 m west and 14 m west make a resultant vector that is
    6·1 answer
  • the density of air at ordinary atmospheric pressure and 25 degrees celcius is 1.19 g/L. what is the mass, in kilograms, of the a
    5·1 answer
  • How does a bannana flaot
    14·2 answers
  • What are units of molarity
    8·1 answer
  • The temperature at which the motion of particles theoretically ceases is..
    15·1 answer
  • Please do not write answer in a zip file
    11·1 answer
  • What is the source of genetic material in organisms that reproduce sexually?
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!