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
tangare [24]
2 years ago
7

When radioactive thorium (Th) decays it emits a beta particle and produces protactinium (Pa) as seen in the nuclear equation. Th

e atomic mass of thorium missing in the nuclear equation must be A) 233. B) 234. C) 235. D) 238.
Chemistry
1 answer:
Rudik [331]2 years ago
6 0

Answer:

B

Explanation:

234 i did this on usatestprep

You might be interested in
Define monosaccharide disaccharide and polysaccharide give at least two examples of each. which of these is the
Ainat [17]
Saccharides are carbohydrates, molecules containing Carbon (C), Hydrogen (H), and Oxygen (O). "Saccharo" means sugar in Greek. Also Greek, "mono" means one, "di" means two, and "poly" means many.
A sugar molecule is based upon a ring of carbons with H's and OH's attached. One sugar molecule alone is a monosacchararide, like glucose and fructose. Two sugar molecules bonded together covalently is a disaccharide, like lactose (milk sugar) and sucrose (table sugar). Many sugar molecules (upwards of hundreds or thousands) bonded together covalently is a polysaccharide. Examples are glycogen (animal starch) and cellulose (plant starch).
6 0
2 years ago
How many moles of solid naf would have to be added to 1.0 l of 2.39 m hf?
sp2606 [1]
Molarity is one way of expressing concentration and is equal to the number of moles of the solute per liter of the solution. Therefore,

Molarity = 2.39 mol / L solution

2.39 ( 1.0) = 2.39 mol HF

Hope this answers the question.
6 0
3 years ago
The system international (SI) unit for energy is:
Natalija [7]

Question

The system international (SI) unit for energy is:

Answer: joule

PLZ BRAINLIEST+THANKS :)

3 0
3 years ago
The amount of water vapor in a given volume of air is ______________ .The amount of water vapor in the air at any one time depen
Eduardwww [97]

Answer:

The amount of water vapor in a given volume of air is humidity.The amount of water vapor in the air at any one time depends on temperature . Warmer air holds more water than cooler air. Clouds form when humidity is low and thetemperature is high . Relative humidity is defined as the amount of water vapor in the air divided by the amount that would have to be present in the same air to form a cloud or condense on a surface. Dew is related to the humidity of the previous day. The air temperature at which water vapor in the air condenses onto cool surfaces is the dew point.

Explanation:

8 0
2 years ago
What mineral property is illustrated by this photograph?​
lbvjy [14]
<h2>Hardness, lustre, and colour.</h2>

Explanation:

These Rocks shown in photographs are made of different types of minerals which have properties as follows:

●The color of the rock is grey, brown and yellow after it is ground into a powder its color is streak.

● The lustre of the rock tells how shiny the rocks are.

● Other properties include hardness, texture, shape, and size.

7 0
3 years ago
Other questions:
  • Which is bigger 1,500 ml or 1.5 l
    10·2 answers
  • Identify the missing daughter nucleus in the β– emission decay of 106ru below.
    7·1 answer
  • How many grams of solid Na2CO3 are required to neutralize exactly 2 liters of an HCI solution of pH 2.0?
    7·1 answer
  • 3. Rank each of the following in order of DECREASING atomic radius<br> a. Cl, Br, Ga
    9·1 answer
  • In the lead storage battery, what are the charges on the lead species that are reactants or products in reactions that take plac
    11·1 answer
  • What is the main organ of the circulatory system?
    13·2 answers
  • Iron react with oxygen to form Iron (III) Oxide. How many moles of iron (III) Oxide is in 138.5g?
    15·1 answer
  • 1. A student mixes two liquids together and notices that a white solid has formed
    6·1 answer
  • 3 If methane burns in a poor supply of air it will give carbon
    5·1 answer
  • Which step in the scientific method has an if/then statement
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!