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pogonyaev
3 years ago
5

When Kristen was five, she became sick with chickenpox and then recovered. What claim explains why Kristen is unlikely to get ch

ickenpox a second time? *
A. Kristen has developed a vaccine against chickenpox.
B. Kristen has not developed antibodies to chickenpox.
C. Kristen’s body no longer contains cells that can be damaged by chickenpox.
D. Kristen’s body has memory cells that will produce antibodies to fight chickenpox.
be quick plz!!
Chemistry
2 answers:
VLD [36.1K]3 years ago
5 0

Answer:

the answer is A!

Mark as brainless

Rudik [331]3 years ago
5 0
Answer:

A. Kristen has developed a vaccine against chickenpox

Please mark me as brainliest( ^ω^ )
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What is the volume of 40.0 grams of argon gas at STP ?
MrRa [10]

Answer:

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General Formulas and Concepts:

<u>Atomic Structure</u>

  • Reading a Periodic Table
  • Moles
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<u>Aqueous Solutions</u>

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<u>Stoichiometry</u>

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Explanation:

<u>Step 1: Define</u>

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<u>Step 2: Identify Conversions</u>

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<u>Step 3: Convert</u>

  1. [DA] Set up:                                                                                                       \displaystyle 40.0 \ g \ Ar(\frac{1 \ mol \ Ar}{39.95 \ g \ Ar})(\frac{22.4 \ L \ Ar}{1 \ mol \ Ar})
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<u>Step 4: Check</u>

<em>Follow sig fig rules and round. We are given 3 sig figs.</em>

24.9235 L Ar ≈ 24.9 L Ar

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