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
Olenka [21]
3 years ago
5

In guinea pigs, the allele for a black coat is dominant over the allele for a white coat. What color is a guinea pig with one al

lele for a black coat and one allele for a white coat?
A.
black
B.
gray
C.
white
D.
black and white
Chemistry
1 answer:
poizon [28]3 years ago
3 0
The answer for this one would be A because
You might be interested in
If I DECREASE the mass and INCREASE the distance, what happens to the force of gravity?​
Lapatulllka [165]

Answer:

Decreases

Explanation:

F = GM1M2/R²

please mark me brainliest and 5 star

4 0
3 years ago
The vapor pressure of water at 25.0°C is 23.8 torr. Determine the mass of glucose (molar mass = 180 g/mol) needed to add to 500.
mrs_skeptik [129]

According to Raoult's law the relative lowering of vapour pressure of a solution made by dissolving non volatile solute is equal to the mole fraction of the non volatile solute dissolved.

the relative lowering of vapour pressure is the ratio of lowering of vapour pressure and vapour pressure of pure solvent

\frac{p^{0-}p}{p^{0}}=x_{B}

Where

xB = mole fraction of solute=?

p^{0}=23.8torr

p = 22.8 torr

x_{B}=\frac{23.8-22.8}{23.8}=0.042

mole fraction is ratio of moles of solute and total moles of solute and solvent

moles of solvent = mass / molar mass = 500 /18 = 27.78 moles

putting the values

molefraction=\frac{molessolute}{molesolute+molessolvent}

0.042=\frac{molessolute}{27.78+molessolute}

1.167+0.042(molesolute)=molessolute

molessolute=1.218

mass of glucose = moles X molar mass = 1.218 X 180 = 219.24 grams



3 0
3 years ago
15g of magnesium (II) oxide decomposes, find the number of oxygen particles produced at 100% yield.
erastova [34]

2.258625 *10²³ oxygen atoms will be produced.

<h3><u>Explanation:</u></h3>

Decomposition reaction is defined as the type of reaction where one single reactant breaks to produce more than one product only by means of heat or other external factor.

Formula of magnesium oxide = MgO.

The molecular mass of magnesium oxide = 24 +16= 40.

So in 40 grams of magnesium oxide, number of molecules is 6.023 * 10²³.

So in 15 grams of magnesium oxide,, number of molecules is 6.023 *1023 * 15/40 = 2.258625 *10²³.

From one molecule of magnesium oxide, one oxide atom will be produced.

So number of oxide atoms with 100% yeild = 2.258625 *10²³

6 0
3 years ago
“Aqueous calcium hydroxide reacts with carbon
bulgar [2K]

Answer:

B. Ca(OH)2(s)+CO2(aq)-CaCO3(s)+H2O(aq)

6 0
2 years ago
Polar molecules have _____.
Ksju [112]

Answer:

B. Charges ( a slight positive charge on one end, and a slight negative charge on the other).

4 0
2 years ago
Read 2 more answers
Other questions:
  • At 900 K the following reaction has Kp=0.345: 2SO2(g)+O2(g)ââ2SO3(g) In an equilibrium mixture the partial pressures of SO2 and
    7·1 answer
  • An object has a volume of 2 milliliters and a mass of 10 grams, calculate the density of the object
    6·1 answer
  • Kilograms represented by the mass defect for oxygen-16: 2.20 × 10 -28 kg What is the nuclear binding energy for oxygen-16?
    15·2 answers
  • BF3 + Li2SO3 ----&gt; B2(SO3)3 + LiF What is the coefficient of lithium fluoride in the balanced chemical reaction?
    14·2 answers
  • 1
    11·1 answer
  • Electric field creates a 3.9 ma current in a 1.0-mm-diameter wire. what material is the wire made of?
    7·2 answers
  • What is 30g(1mol÷70g)
    8·1 answer
  • You have 125.0 mL of a solution of H3PO4, bu you don't know its concentration. if you titrate the solution with a 4.56-M solutio
    5·1 answer
  • For Mn3+, write an equation that shows how the cation acts as an acid.
    7·2 answers
  • Phenols do not exhibit the same pka values as other alcohols; they are generally more acidic. Using the knowledge that hydrogen
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!