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
zzz [600]
3 years ago
6

Which of the following sequences of elements would all have four valence electrons?

Chemistry
1 answer:
Svetradugi [14.3K]3 years ago
5 0

Answer:

Your answer should be B.) C, Si, Ge, Sn! I hope this helps you! :)

You might be interested in
Aspartame (c14h18n2o5) is a solid used as an artificial sweetener. its combustion produces carbon dioxide gas, liquid water, and
Law Incorporation [45]

Aspartame (C₁₄H₁₈N₂O₅) is a solid used as an artificial sweetener. its combustion produces carbon dioxide gas, liquid water, and nitrogen gas

C₁₄H₁₈N₂O₅ + 16O₂-----> 14CO₂ + 9H₂O + N₂.

As it can be seen from the equation, that the coefficient of nitrogen gas in the balanced equation for the reaction is 1.

So the answer here is 1 only that is coefficient of nitrogen gas in the balanced equation for the reaction is 1.

5 0
4 years ago
What does the -40, -42, -43, -44, -46,-48 mean for each isotope of Calcium?
neonofarm [45]
Mass number of calcium isotopes

mass numberi the number of proton + neutron

number of proton for calcium is 20 regardless of isotopes

hence the only difference between calcium isotopes are rhe number of neutron
6 0
3 years ago
Write a balanced half-reaction for the oxidation of chromium ion Cr + 3 to dichromate ion Cr 2 O − 2 7 in basic aqueous solution
SOVA2 [1]

Answer:

14 OH⁻(aq) + 2 Cr³⁺(aq) = Cr₂O₇²⁻(aq) + 7 H₂O(l) + 6 e⁻

Explanation:

In order to balance a half-reaction we use the ion-electron method.

Step 1: Write the half-reaction

Cr³⁺(aq) = Cr₂O₇²⁻(aq)

Step 2: Perform the mass balance, adding H₂O(l) and OH⁻(aq) where appropriate

14 OH⁻(aq) + 2 Cr³⁺(aq) = Cr₂O₇²⁻(aq) + 7 H₂O(l)

Step 3: Perform the electric balance, adding electrons where appropriate

14 OH⁻(aq) + 2 Cr³⁺(aq) = Cr₂O₇²⁻(aq) + 7 H₂O(l) + 6 e⁻

8 0
3 years ago
A wildlife researcher weighed all the raccoons that were trapped in suburban neighborhoods before they were released back into t
stellarik [79]

Answer : The measurement units were biased.

Explanation : While the wildlife researcher weighed all the raccoons that were trapped only in the suburban neighborhood neglected the count of the raccoons in whole state. As per the statement stated in the problem "weighed all the raccoons that were trapped in suburban neighborhoods" clearly shows the confirmation of the same.

7 0
3 years ago
Read 2 more answers
T or F? A transformer is a device that can only increase the voltage carried in power lines.
WITCHER [35]

Answer:

true  please dont thank me

7 0
2 years ago
Read 2 more answers
Other questions:
  • What are the products in the equation for cellular respiration? A. Oxygen and lactic acid b. Carbon dioxide and water c. Glucose
    6·1 answer
  • Balance this chemical equation SiO2+HF=SiF4+H2O
    13·1 answer
  • What electrically neutral atom will have an electron configuration of 1 s 22 s 22 p 4? Use a periodic table.
    14·1 answer
  • How much heat is absorbed by 20g granite boulder as energy from the sun causes its temperature to change from 10°C to 29°C? The
    7·1 answer
  • You fall off your skateboard and skin your knee so you wash it and put a bandage on it. Which seven systems are you using most d
    10·1 answer
  • Gustaf observes a chemical reaction between two substances in a glass beaker. While observing the reaction, he touches the beake
    15·2 answers
  • Elements like gold, silver, and iron all have_________?
    13·1 answer
  • Tons<br> Problems<br> If a -1 ion has 10 electrons, what element is it?
    9·1 answer
  • Balance:<br> Fe2(SO4)3 +<br> _K[OH] —&gt; _K2[SO4] +<br> K[SO] + Fe[OH]3
    10·2 answers
  • How do i convert 2.4 mL into L
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!