Answer:
B. Saliva breaking down molecules in the mouth
Explanation:
I'm pretty sure it's this because saliva contains enzymes and enzymes use chemicals to break down food in your mouth. For example, your mouth has an enzyme called amylase which helps to break down starches.
Answer:
B. Saliva breaking down molecules in the mouth
Explanation:
I'm pretty sure it's this because saliva contains enzymes and enzymes use chemicals to break down food in your mouth. For example, your mouth has an enzyme called amylase which helps to break down starches.Explanation:
I will make you brainlist answer this 1 question!
Direction: Answer the missing word
Answer:
i think it's higher for both u can try
Explanation:
subscripts in chemical formulas are used to indicate the relative proportions of the elements in a
Answer:
relative proportions of the elements in a chemical reaction
A molecule or a compound can easily be represented by their formula.Subscripts in chemical formulas are used to indicate the relative proportions of the elements in a compound.
What is chemical formula?A chemical formula represent the identity and number of elements in a molecule or compound. Each element in periodic table has their own symbols. For example, hydrogen is H, oxygen having O, N for nitrogen, Na for sodium etc.
These chemical symbols are came from the first one or two letters of the Latin names of the elements. The number of these elements in a compound is given as subscripts of their symbols.
For example, there are two hydrogens and one oxygen in water and the formula is H₂O. Similarly the formula of carbon dioxide is CO₂ where one carbon and two oxygens are present. In this way the compounds can be easily identified and distuinguished using their chemical formulas.
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Explanation:
See the table above. Periods at the side, metals at the top, non metals to the right, group to the right of that
How many grams of H2O is needed to produce 0.75 moles of ?
Answer:
H2O2 + H2S → 2H2O + S? that is the answer
a major cause of rancidity of lipids in foods is exposure to
Answer:
exposure to the sun (heat and light) for long period of time and air (oxygen reacts with particles)
how many electrons must beryllium gain or lose to form stable ions
Explanation:
beryllium must loss 2 electrons to form a stable octet to its nearest noble gas Helium.
It can loss electron because it is a metal and is placed in 2group and 2 period in group of alkaline earth metals.
hope this helps you to.
Solve for the Gradient AB. The units will be in m/km but you should not
leave units in the answer because the answer key will not take them. Write
the answer to the tenths place and no units.
.X
B
Lake
-100
Blue River
50
А
D
5 kilometers
Contour interval 10 meters
N
0
2
3
5 kilometers
Answer:
help me mark me as a brinliest
how do the melting points of enantiomers compare to each other? how do the melting points of diastereomers compare to each other?
Melting points of enantiomers will not compare to each other as they have same M.P. and Diastereoisomers are compared on the basis of melting point.
What are steroisomers?Stereoisomers are those isomers which are having the same molecular formula but different spatial arrangemet of atoms within the molecule.
Enantiomers: Enantiomers are pair of two stereoisomers which are having mirror image of each other, but are not superiposable. They have the same melting point so we can not compare enantiomers on the basis of their melting point.Diastereoisomers: Diastereoisomers are pair of those stereoisomers which are not having mirror image of each other, but are superimposable.They have different physical and chemical properties, so it can be compared on the basis of melting point.Hence, only diastereoisomers are compared on the basis of melting point.
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is the moon bigger than neptune
Answer:
Neptune is bigger than the moon
Explanation:
The circumference of the moon is 6,783.5 miles
The circumference of Neptune is 96,129 miles
This means neptunes circumference is about 14 times the size of the moons
Which of the following is an observation of a chemical property?
zinc reacts with hydrochloric acid
water boils at 100°C.
density of wood is 0.51 g/cm3
sand paper is roughly textured
Is this statement true or false?
The products of a chemical reaction have the same properties as the reactants.
true
false
Answer:
The answer is B. False
Explanation:
I NEED OXIDATION AND REDUCED FOR BOTH ASAP PLS HELP (make sure its correct)
Which statement best describes a chemical change?
O A. A substance changes size or phase.
O B. Atoms are made and destroyed.
O C. The nuclei of atoms are rearranged.
O D. Substances form new substances.
A space that is totally empty without any matter is called
I will brainless who can answer this all pleaseeeeejvv
Answer:
White-Blue-Red-Yellow-Orange
Explanation:
The sun emits all colors of the rainbow more or less evenly.
⚠️ I'm not 100% sure but for sure there is White ⚠️
A compound is a hydrate when it
PLZZ HELP
Which of the following Is acompound?
Ne
N₂
Naci
02
Answer:
[tex]N2[/tex]
Explanation:
Because
Molecular nitrogen (N2) is a very common chemical compound in which two nitrogen atoms are tightly bound together.
Which of the following is a physical property of matter
Answer: Physical properties of matter include color, hardness, malleability, solubility, electrical conductivity, density, melting point, and boiling point. For the elements, color does not vary much from one element to the next
Answer:
Physical properties of matter include;
evaporationcondensationsublimationfreezingmelting…and so on[tex].[/tex]
Is table sugar(sucrose) a substance or a mixture
Answer: its a compound
Research the validity of ONE of the following hypnosis claims using reputable sources. (No blogs, social media posts, etc.)
1.Hypnosis can help people stop smoking.
2. Hypnosis can help people with weight loss.
A. To what extent does hypnosis work in regards to these behaviors?
B. Would you recommend them? Why or why not?
C. What sources did you use to find your answers.
Answer:
1. Hypnosis can help people stop smoking.(Yes)
To what extent does hypnosis work in regards to these behaviors?
A study by McNeilly and colleagues found that hypnosis may help quitters to focus on their own resources to curb cigarette cravings. Other researchers have suggested that success rates are caused by the relaxation effects of hypnosis. These might allow people to cope with nicotine addiction and nicotine withdrawal.
Would you recommend them? Why or why not?
I wouldn't recommend it because, The evidence for hypnosis as a successful smoking cessation method is a mixed bag. Some studies have seen high success rates, whilst others are more modest. A review of 59 different trials found that hypnosis is often better than no support at all.( so its a risk)
Explanation:
Someone pls help me with this I will make you brain
Answer:
The answer should be primary pollutants from a stationary source.
Explanation:
Primary pollutants are emitted directly from a source and do not change in the atmosphere, and from a stationary source because manufacturing factories have a fixed location.
Hope this helped :D
6C6H12O6
How many total atoms of oxygen are present in the molecules represented here?
Answer:
The answer is 36 atoms
Explanation: I took the test and i got 100%
There are 36 oxygen atoms in the representation "6 C₆H₁₂O₆".
We have the expression "6 C₆H₁₂O₆", which represents 6 molecules of C₆H₁₂O₆.
The subscripts are the atomicities of the element, that is, the number of atoms of each element in 1 molecule.
There are 6 atoms of oxygen per molecule of C₆H₁₂O₆. Considering that there are 6 molecules, the total number of atoms of oxygen are:
[tex]6 Molecules \times \frac{6\ O\ atoms}{1Molecule} = 36\ O\ atoms[/tex]
There are 36 oxygen atoms in the representation "6 C₆H₁₂O₆".
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Ned help with this question
What is the name of this process?
Answer:
Fertilization
Explanation:
Fertilization occurs when the nucleus of both a sperm and an egg fuse to form a diploid cell, known as zygote. The successful fusion of gametes forms a new organism.
Which phrase best describes electronegativity?(1 point)
A.) the partial charge an element carries in a covalent or ionic bond
B.) the number of electrons an element shares in an ionic bond
C.) the number of electrons an element has
D.) the relative strength with which an element attracts electrons in a chemical bond
Answer:
ELECTRONEGATIVITY is the tendency of an atom in the molecule to attract the bonded pair of electrons .
Explanation:
it might help you!!!!!!
Answer:
the relative strength with which an element attracts electrons in a chemical bond
Explanation:
Someone pls help me I will mark you as brain
Answer:
1st one is the answer water cannot be purified by nature pls add me in brainliest
Could someone please help me
Answer:
Whistle 2 has a lower pitch, but is louder.
Whistle 3 has higher pitch and is less loud.
Explanation:
The more frequent the arches are the higher the pitch.
The larger the amplitude the louder the sound is.
;D
a regular solid box has a length of 5cm a width of 2cm and a height of 3cm what is the volume of the box
Volume of the regular solid = l × w × h
= (5 cm × 2 cm × 3 cm)
= 30 cm³
which scientist developed the nuclear model of the atom?
Answer:
Earnest Rutherford
Explanation:
From what I beleive, Rutherford had created the nuclear model
A. IH, III, IV
C. I, II and IV only
B. I, ll and Ill only
D. III and IV only
2. A liquid has the following properties: one-phase, colorless, boils at varying
temperature. Which of the following BEST describes the liquid?
A. solution
C. suspension
B. substance
D. heterogeneous mixture
3. Jill has an unopened box of a 2-meter foil labeled as 100% aluminum. Jill takes just a
thumb-sized piece of the aluminum foil. Which of the following statement is TRUE
about the piece of aluminum foil that Jill took compared with the rest that was left in
the box?
A. Its mass and melting behavior are different.
Bits mass and melting behavior are the same.
C. The mass is different, but the melting behavior is the same.
D. The mass is the same, but the melting behavior is different.
Answer:
2. A. solution
3. C The mass is different, but the melting behavior is the same
