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
zhuklara [117]
3 years ago
15

Read the list of elements given below. Be, Mg, Ca, Sr Which of the following about the elements is true? (5 points)

Chemistry
1 answer:
slava [35]3 years ago
4 0

Answer:

Pretty Sure Its A

Explanation:

You might be interested in
What is smaller than a quark?​
max2010maxim [7]

Answer:

Nothing

Explanation:

7 0
3 years ago
Read 2 more answers
You have 54.32 grams of PbCl4. How many moles of PbCl4 do you have?
Dima020 [189]

Answer:

0.156mol

Explanation:

Number of moles of a substance can be calculated from its mass by dividing its mass by molar mass i.e.

Number of moles (n) = mass/molar mass

Molar mass of PbCl4 is as follows, where Pb = 207.2g/mol, Cl = 35.5g/lol

PbCl4 = 207.2 + 35.5(4)

= 207.2 + 142

= 349.2g/mol

Using: mole = mass/molar mass

mole = 54.32 grams ÷ 349.2g/mol

mole = 0.1555

mole = 0.156mol

6 0
3 years ago
Explain what a conjugate acid is and what a conjugate base is.
Svetlanka [38]

Answer:

A conjugate acid, within the Brønsted–Lowry acid–base theory, is a chemical compound formed when an acid donates a proton to a base—in other words, it is a base with a hydrogen ion added to it, as in the reverse reaction it loses a hydrogen ion

Explanation:

7 0
3 years ago
Read 2 more answers
The reaction
scZoUnD [109]

Answer:

The correct answer is option A.

Explanation:

POCl_3 (g)\rightleftharpoons POCl (g) + Cl_2 (g)

Reducing the partial pressure of chlorine gas means that removal of chlorine gas from the equilibrium will shift the equilibrium in the direction according to Le Chatelier's principle.

On a removal of product from the equilibrium shifts the reaction in the forward reaction for reestablishment.So, when the partial pressure of chlorine is reduced by 50% the equilibrium will shift in forward direction in which POCL_3 will be consumed to form more chlorine gas.

Hence, A is correct .

8 0
4 years ago
..can anyone tell why can't we text anything in indian brainly <br>3724221217<br>12345<br>​
Mademuasel [1]

Answer:

because its not international language

Explanation:

because its not international language like English

4 0
3 years ago
Read 2 more answers
Other questions:
  • Consider the chemical equation. 2NBr3 + 3NaOH mc008-1.jpg N2 + 3NaBr + 3HOBr If there are 40 mol of NBr3 and 48 mol of NaOH, wha
    12·2 answers
  • Which type of radioactive emission has a positive charge and weak penetrating power?
    12·1 answer
  • How many dimes could you trade for 360 pesos? $1 = 1500 pesos.
    8·1 answer
  • A gas is initially at a pressure of 0.43 atm, and a volume of 11.7 liters. Then the pressure is raised to 3.61 atm and the volum
    12·2 answers
  • Which type of radiation has neither mass nor charge?
    13·2 answers
  • does the mean molecular speed chnage as much as the temperature as the water heats up? explain please help
    12·1 answer
  • How many Mg atoms are found in 1.00 mole of MgO?
    9·1 answer
  • I need help with the bottom two pls The first answer I will mark brainliest
    6·1 answer
  • A chemical reaction at equilibrium always has _______.
    10·1 answer
  • Draw conclusion: The density of water is 1.0 g/mL, or 1.0 g/cm². Look at the data in your table. How can you use the density of
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!