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
artcher [175]
3 years ago
7

2. Which of the following is NOT a function of the saliva?

Chemistry
2 answers:
WITCHER [35]3 years ago
6 0

Explanation:

c . produces bile is not the function of slaiva

snow_lady [41]3 years ago
4 0

Answer:

B. partially digests starch

You might be interested in
The goal of this lesson:
mote1985 [20]

Answer:

1. The concentration of N₂O₄ decrease as the temperature of the system increased.

2. The formation of products was favored by the addition of heat.

3. The reaction going from right to left is exothermic.

4. N₂O₄ → 2NO₂; HR = +14 kcal.

Explanation:

Equation of the reaction is as follows: N₂O₄ ⇄ 2NO₂

The forward reaction proceeds with an increase in temperature. As the temperature of the reaction was increased, more of the N₂O₄ decomposed to form NO₂. Therefore, the concentration of N₂O₄ deceased.

2. The formation of products, that is the forward reaction leading to formation of NO₂ was favored by the addition of heat. Thus, with increase in temperature, the concentration of NO₂ increased.

3. An endothermic reaction is a type of reaction which requires energy input in the form of heat in order to proceed.

From the observations during the reaction, an increase in temperature by the addition of heat resulted in an increase in the forward reaction, therefore, the forward reaction is endothermic and the backward reaction is exothermic. Thus, the reaction in which colorless N₂O₄ is produced, is an exothermic reaction.

4. The change in enthalpy of a reaction is the difference in the heat content of reactants and products. For exothermic reactions, enthalpy change is negative, whereas for endothermic reactions, enthalpy change is positive.

The decomposition of  N₂O₄ to NO₂ is an endothermic reaction. Hence, the correct chemical equation is: N₂O₄ → 2NO₂; HR = +14 kcal.

7 0
3 years ago
It didn't have science but the subject is science. A climate with short cool summers and long, bitterly cold winters is the
kvasek [131]
Hey there,

Question : <span>A climate with short cool summers and long, bitterly cold winters is the?

Answer : D, Tundra Climate

Hope this helps :))

<em>~Top♥</em>
</span>
6 0
3 years ago
Read 2 more answers
Select any of the following combinations which would make a good buffer solution?
KengaRu [80]

Answer:

b. 0.05 M H₂CO₃ + 0.05 M KHCO₃

d. 0.1M HCN + 0.2M NaCN

g. 0.2M NH₃ + 0.1M NH₄Br

Explanation:

A buffer solution consists of the following components:

  • A weak acid and its conjugate base.
  • A weak base and its conjugate acid.

<em>Which would make a good buffer solution?</em>

<em>a. 0.3 M HC₂H₃0₂ + 0.1 M HCI</em>

It does not have the components of a buffer solution. HCl is a strong acid.

<em>b. 0.05 M H₂CO₃ + 0.05 M KHCO₃</em>

It is a good buffer because it has a weak acid (H₂CO₃) and its conjugate base (HCO₃⁻), which comes from the salt.

<em>c. 0.05 M KC₂H₃O₂</em>

It does not have the components of a buffer solution.

<em>d. 0.1M HCN + 0.2M NaCN</em>

It is a good buffer because it has a weak acid (HCN) and its conjugate base (CN⁻), which comes from the salt.

<em>e. 0.2M NaF + 0.2M NaOH</em>

It does not have the components of a buffer solution. NaOH is a strong base.

<em>f. 0.3M NH₄Cl</em>

It does not have the components of a buffer solution.

<em>g. 0.2M NH₃ + 0.1M NH₄Br</em>

It is a good buffer because it has a weak base (NH₃) and its conjugate acid (NH₄⁺), which comes from the salt.

6 0
3 years ago
What does the subscript tell you?
amm1812
I think it is d it is definitely not a or b
7 0
3 years ago
Read 2 more answers
If adequate o2 is present in the mitochondria, pyruvic acid will be converted to ______; if conditions are anaerobic, pyruvic ac
9966 [12]
Presence of Oxygen in mitochondria is called Aerobic conditions and under this aerobic conditions Pyruvic acid is converted into Acetyl Co.A which enters Krebs' cycle
while in absence of oxygen which called Anaerobic conditions pyruvic acid is converted into Lactic acid to avoid accumulation of NADH⁺ which inhibit glycolysis and provide NAD⁺ required for glycolysis  
<span />
5 0
3 years ago
Other questions:
  • What id the volume if a gas if I have 0.215 moles if gas at a temperature of 75 K and a pressure if 182.34KPa?
    9·1 answer
  • In the titration of 238.0 mL of a 5.60×10-2 M solution of acid H3A (Ka1 = 1.0×10-3, Ka2 = 5.0×10-8, Ka3 = 2.0×10-12), calculate
    13·1 answer
  • Is it really possible for humans not to alter the natural world around them?
    10·1 answer
  • Which phrase correctly describes a Lewis dot structure for carbon?
    8·2 answers
  • The time necessary for the decay of one- half sample of a radioactive substance is a _____. mass defect daughter half life nucli
    11·2 answers
  • 50cm3 of a mixture of methane and hydrogen were mixed with excess oxygen and exploded, the product after cooling to the original
    9·1 answer
  • Please Help with what you can and try 8 if possible
    13·1 answer
  • What are the three ways there can be a base change in a sequence?
    10·1 answer
  • Chemical formurla for Lithium Phsophide
    5·1 answer
  • Can sombody pls help me with this​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!