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Sveta_85 [38]
2 years ago
6

How does a virus cause a disease?

Chemistry
2 answers:
Reika [66]2 years ago
6 0
A. They release toxins that poison your body’s cells
RSB [31]2 years ago
6 0

B.

Explanation:

Viruses are like hijackers. They invade living, normal cells and use those cells to multiply and produce other viruses like themselves. This can kill, damage, or change the cells and make you sick.

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How many moles of CaCO3 are there for every two moles of HCl?
vlada-n [284]

Answer:

caco3ertyuio;lkjhgfdsxcvbnm,.

Explanation:

6 0
3 years ago
Which is a metal alloy?
Nikolay [14]
D they are all metals

4 0
3 years ago
What two body systems work together to deliver oxygen to cells
spayn [35]
The circulatory system<span> also transports oxygen from the </span>lungs<span> to the cells. Now the cells have what they need for </span>cellular respiration<span>: oxygen and glucose. The teamwork doesn't end there, however. The </span>circulatory system<span> also transports carbon dioxide waste from the cells to the </span>lungs<span> of the </span>respiratory system<span>.</span>
6 0
3 years ago
g A chemist combines 59.9 mL of 0.282 M potassium bromide with 15.4 mL of 0.512 M silver nitrate. (a) How many grams of silver b
Rufina [12.5K]

Answer:

m_{AgBr}=1.48gAgBr

Explanation:

Hello,

In this case, the undergoing chemical reaction is:

KBr(aq)+AgNO_3(aq)\rightarrow AgBr(s)+KNO_3(aq)

Thus, since the potassium bromide and silver nitrate are in a 1:1 mole ratio, the first step is to identify the limiting reactant, by considering the reacting volumes of reactants in order to compute the available moles of potassium bromide and the moles of potassium bromide consumed by the 15.4 mL of 0.512-M solution of silver nitrate:

n_{KBr}=0.0599L*0.282\frac{molKBr}{L} =0.0169molKBr\\\\n_{KBr}^{consumed}=0.0154L*0.512\frac{molAgNO_3}{L} *\frac{1molKBr}{1molAgNO_3}=0.00788molKBr

In such a way, since less moles are consumed than available, we infer that silver nitrate is the limiting reactant, for which the resulting grams of silver bromide (molar mass 187.8 g/mol) result:

m_{AgBr}=0.00788molAgNO_3*\frac{1molAgBr}{1molAgNO_3} *\frac{187.8gAgBr}{1molAgBr} \\\\m_{AgBr}=1.48gAgBr

Best regards.

6 0
4 years ago
What causes a nucleus to become radioactive?
Sholpan [36]
When the atoms of radioactive elements have an unstable nucleus. As the nucleus tries to become stable, it releases energy (ionizing radiation), and extra protons or neutrons in the form of alpha or beta particles.
6 0
4 years ago
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